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rr:RiskNotInsuredDepositoryInstitutionMember 2024-10-31 2024-10-31 0001479360 pimco:S000066985Member pimco:ReturnAfterTaxesonDistributionsMember pimco:C000215599Member 2024-10-31 2024-10-31 0001479360 pimco:S000066985Member pimco:ReturnAfterTaxesonDistributionsandSalesofFundSharesMember pimco:C000215599Member 2024-10-31 2024-10-31 0001479360 pimco:S000066985Member pimco:SP500Index35Member 2024-10-31 2024-10-31 0001479360 pimco:S000066985Member pimco:RAFIESGUSIndexMember 2024-10-31 2024-10-31 pure iso4217:USD PIMCO REALPATH® Blend 2030 Fund PIMCO Dividend and Income Fund PIMCO RAE International Fund PIMCO RAE Global ex-US Fund PIMCO REALPATH® Blend 2060 Fund PIMCO RAFI ESG U.S. ETF PIMCO REALPATH® Blend 2065 Fund PIMCO RAFI Dynamic Multi-Factor Emerging Markets Equity ETF PIMCO RAE US Fund PIMCO RAE Emerging Markets Fund PIMCO REALPATH® Blend 2040 Fund PIMCO REALPATH® Blend 2035 Fund PIMCO REALPATH® Blend 2045 Fund PIMCO REALPATH® Blend 2050 Fund PIMCO RAFI Dynamic Multi-Factor 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The Fund’s secondary objective is to seek to provide long-term capital appreciation. The Fund’s secondary objective is to seek to provide long-term capital appreciation. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 49 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0 0 0.0550 0 0 0 0 0.0100 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0069 0.0079 0.0089 0.0079 0.0079 0.0025 0.0100 0.0014 0.0014 0.0014 0.0014 0.0014 0.0083 0.0093 0.0103 0.0118 0.0193 -0.0001 -0.0001 -0.0006 -0.0001 -0.0001 0.0082 0.0092 0.0097 0.0117 0.0192 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2, I-3, Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 84 264 460 1024 94 295 514 1142 99 322 563 1254 663 903 1162 1902 295 605 1041 2058 If you do not redeem your shares: 663 903 1162 1902 195 605 1041 2058 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 408% of the average value of its portfolio. 4.08 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of income-producing investments, and will typically invest between 35 - 65% of its assets in equity and equity-related securities (the “Equity Sleeve”) selected in accordance with PIMCO’s systematic equity income strategy. Equity-related securities include securities having an equity component (e.g., hybrids, bank capital, certain real estate investment trusts (“REITs”) and business development companies (“BDCs”)) and equity derivatives. With respect to investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest.The securities for the Equity Sleeve are selected by PIMCO from a broad universe of global equities. PIMCO’s systematic equity income strategy uses a factor risk model with constraints on sector, region and security exposures relative to the Fund’s primary benchmark. The strategy is primarily a model-driven approach subject to portfolio manager oversight. Portfolio managers have discretion to adjust the model over time and to selectively override the model in order to seek to achieve the Fund’s investment objectives.The Fund will also typically invest 35 – 65% of its assets in “Fixed Income Instruments” of varying maturities selected primarily based on their ability to deliver consistent income, subject to prudent risk management. Fixed Income Instruments include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The debt investments of the Fund may include investment-grade securities and high yield securities (“junk bonds”) of any rating.The Fund’s approach to fixed income securities selection incorporates PIMCO’s global macroeconomic views and multi-sector fixed income investment expertise. The Fund’s fixed income assets are selected based on fundamental analysis, as well as PIMCO’s view regarding the attractiveness of key investment risk factors.Outside of the Equity Sleeve and fixed income portions of the Fund’s portfolio described above, the Fund may tactically allocate up to 15% of its assets in other income-producing investments, which can include but are not limited to a combination of Acquired Funds (defined below), REITs, preferred securities and BDCs. These investments may be utilized in PIMCO’s discretion, subject to the restrictions and limitations of the Investment Company Act of 1940, as amended (the “1940 Act”).The Fund may invest in the least expensive class of shares of any actively managed or smart beta funds (including mutual funds or exchange-traded funds) of the Trust, or PIMCO ETF Trust or PIMCO Funds, each an affiliated open-end investment company, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and may also invest in other unaffiliated funds and exchange-traded funds (collectively, “Acquired Funds”).The Fund may also invest in derivative instruments, such as options, futures contracts, swap agreements, equity-linked notes, equity-linked securities and participatory notes, consistent with its investment objectives. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also enter into reverse repurchase agreements and lend portfolio securities.The Fund may invest a significant portion of its assets in securities and instruments that are economically tied to foreign (non-U.S.) countries. The Fund may obtain foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) without limitation. The Fund may invest up to 50% of its total assets in securities and instruments that are economically tied to emerging market countries (this limitation does not apply to investment grade sovereign debt denominated in the local currency with less than 1 year remaining to maturity, which means the Fund may invest in such instruments without limitation subject to any applicable legal or regulatory limitation). Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Dividend-Oriented Stocks Risk: companies that have paid regular dividends to shareholders may decrease or eliminate dividend payments in the future. A decrease in dividend payments by an issuer may result in a decrease in the value of the security held by the Fund or the Fund receiving less income. In addition, equity securities with higher dividend yields may be sensitive to changes in interest rates, and as interest rates rise, the prices of such securities may fall. The Fund's use of a dividend capture strategy (i.e., purchasing an equity security shortly before the issuer pays a dividend and selling it shortly thereafter) exposes the Fund to higher portfolio turnover, increased trading costs, the potential for capital loss, particularly in the event of significant short-term price movements of stocks subject to dividend capture trading and may result in negative tax consequences Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Interest Rate Risk: the risk that fixed income securities and dividend-paying equity securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO, including the use of quantitative models or methods, will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions may not adequately take into account certain factors, or may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund Tracking Error Risk: the risk that the portfolio of a Fund that seeks to track the investment results of an underlying index may not closely track the underlying index for a number of reasons. The Fund incurs operating expenses, which are not applicable to the underlying index, and the costs of buying and selling securities, especially when rebalancing the Fund’s portfolio to reflect changes in the composition of the underlying index. Performance of the Fund and the underlying index may vary due to asset valuation differences and differences between the Fund’s portfolio and the underlying index due to legal restrictions, cost or liquidity restraints. The risk that performance of the Fund and the underlying index may vary may be heightened during periods of increased market volatility or other unusual market conditions. In addition, a Fund’s use of a representative sampling approach may cause the Fund to be less correlated to the return of the underlying index than if the Fund held all of the securities in the underlying index Indexing Risk: the risk that an Underlying PIMCO Fund that seeks to track the investment results of an underlying index is negatively affected by general declines in the asset classes represented by the underlying index Collateralized Loan Obligations Risk: the risk that investing in collateralized loan obligations (“CLOs”) and other similarly structured investments exposes the Fund to heightened credit risk, interest rate risk, liquidity risk, market risk and prepayment and extension risk, as well as the risk of default on the underlying asset. In addition, investments in CLOs carry additional risks including, but not limited to:(i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) risks related to the capability of the servicer of the securitized assets; (iv) the risk that the Fund may invest in tranches of CLOs that are subordinate to other tranches; (v) the structure and complexity of the transaction and the legal documents may not be fully understood at the time of investment and could lead to disputes with the issuer or among investors regarding the characterization of proceeds or unexpected investment results; and (vi) the CLO's manager may perform poorly An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. Performance for Class A and Class C shares in the Average Annual Total Returns table reflects the impact of sales charges. The I-3 shares of the Fund have not commenced operations as of the date of this prospectus. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index. Effective July 24, 2024, the Fund’s regulatory index is the Bloomberg U.S. Aggregate Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. TheBloomberg U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The 50% MSCI ACWI High Dividend Yield Index / 50% Bloomberg US Aggregate Index is a supplemental index of the Fund. The MSCI ACWI High Dividend Yield Index includes large and mid-cap stocks across a group of developed markets and emerging markets countries. The index is designed to include companies with high dividend income and quality characteristics, and that have higher than average dividend yields that are both sustainable and persistent. Securities are screened based on track record of consistent dividend payments with capacity to sustain dividend payouts into the future. Securities are also screened based on certain quality factors such as return on equity, earnings variability, debt to equity, and recent 12-month price performance. Issuer weights are capped at 5%. The index is market cap weighted and rebalanced semi-annually in May and November.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Performance for Class A and Class C shares in the Average Annual Total Returns table reflects the impact of sales charges. The I-3 shares of the Fund have not commenced operations as of the date of this prospectus. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the Bloomberg U.S. Aggregate Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. TheBloomberg U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The 50% MSCI ACWI High Dividend Yield Index / 50% Bloomberg US Aggregate Index is a supplemental index of the Fund. The MSCI ACWI High Dividend Yield Index includes large and mid-cap stocks across a group of developed markets and emerging markets countries. The index is designed to include companies with high dividend income and quality characteristics, and that have higher than average dividend yields that are both sustainable and persistent. Securities are screened based on track record of consistent dividend payments with capacity to sustain dividend payouts into the future. Securities are also screened based on certain quality factors such as return on equity, earnings variability, debt to equity, and recent 12-month price performance. Issuer weights are capped at 5%. The index is market cap weighted and rebalanced semi-annually in May and November. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterDecember 31, 202016.32%Worst QuarterMarch 31, 2020-24.76%Year-to-DateSeptember 30, 202412.30% Best Quarter 2020-12-31 0.1632 Worst Quarter 2020-03-31 -0.2476 Year-to-Date 2024-09-30 0.1230 Average Annual Total Returns (for periods ended 12/31/23) 0.1218 0.0729 0.0449 0.1042 0.0595 0.0310 0.0751 0.0534 0.0314 0.1206 0.0718 0.0439 0.0564 0.0570 0.0353 0.0988 0.0609 0.0334 0.0553 0.0110 0.0181 0.0750 0.0467 0.0380 0.0932 0.0781 0.0543 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Investment Objective The Fund seeks long-term capital appreciation. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 49 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0 0.0375 0 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0075 0.0085 0.0085 0.0025 0.0003 0.0003 0.0003 0.0078 0.0088 0.0113 -0.0001 -0.0001 -0.0001 0.0077 0.0087 0.0112 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2 or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Investors may pay brokerage commissions on their purchases and sales of Institutional Class shares or I-2 shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 79 248 432 965 89 280 487 1083 485 720 973 1697 If you do not redeem your shares: 485 720 973 1697 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 67% of the average value of its portfolio. 0.67 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in investments that are economically tied to emerging market countries. Specifically, under normal circumstances, the Fund will obtain exposure to a portfolio of stocks economically tied to emerging market countries (“RAE Emerging Markets Portfolio”) through investment in the securities that comprise the RAE Emerging Markets Portfolio. The stocks are selected by the Fund's sub-adviser, Research Affiliates, LLC (“Sub-Adviser”), from a broad universe of companies which satisfy certain liquidity and capacity requirements.The Sub-Adviser uses the RAE™ methodology for portfolio construction. The RAE™ methodology is a rules-based model that selects stocks using quantitative signals that indicate higher expected returns, e.g., value, quality, and momentum. The model then weights selected stocks using their fundamental measures of company size, e.g., sales, cash flow, dividends and book value. Actual stock positions in the RAE Emerging Markets Portfolio, which drift apart from target weights as market prices change, are rebalanced to target weights periodically. The RAE™ methodology's systematic portfolio rebalancing reflects a value orientation. Portfolio managers do not have discretion with respect to the allocations determined by the RAE™ methodology. The RAE™ methodology is not updated according to any predetermined schedule.The Sub-Adviser provides investment advisory services in connection with the Fund's use of the RAE Emerging Markets Portfolio by, among other things, providing PIMCO with the constituents and target weights in the RAE Emerging Markets Portfolio. The Fund seeks to remain invested in the securities that comprise the RAE Emerging Markets Portfolio even when the value of the RAE Emerging Markets Portfolio is declining.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. Equity-related securities include securities having an equity component (e.g., hybrids, bank capital) and equity derivatives. With respect to investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest.The Fund may also invest in derivative instruments, such as options, forwards, futures contracts, options on futures and swap agreements, consistent with its investment objective. The Fund may also invest in real estate investment trusts (“REITs”).The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund may also enter into reverse repurchase agreements and lend portfolio securities.The Fund may invest, without limitation, in securities and instruments denominated in foreign currencies and in securities of foreign issuers. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may obtain foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) without limitation. Principal Risks It is possible to lose money on an investment in the Fund. Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by the Sub-Adviser if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk China Risk: investing in securities and instruments economically tied to the People’s Republic of China (excluding Hong Kong, Macau and Taiwan for the purpose of this disclosure) (“PRC”) subjects the Fund to the risks of investing in foreign (non-U.S.) securities and emerging market securities, as well as additional risks including, without limitation, inefficiencies resulting from erratic growth, the unavailability of consistently-reliable economic data, dependence on exports and international trade, asset price volatility, potential shortage of liquidity and limited accessibility by foreign (non-U.S.) investors, fluctuations in currency exchange rates, currency devaluation, the relatively small size and absence of operating history of many PRC companies, and the developing nature of the legal and regulatory framework for securities markets, custody arrangements and commerce Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management Risk: the risk that the investment techniques and risk analyses applied by the Sub-Adviser, including the use of quantitative models or methods, will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to the Sub-Adviser and the individual portfolio managers in connection with managing the Fund and may cause the Sub-Adviser to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions may not adequately take into account certain factors, or may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. A privately offered fund managed by the Fund’s Sub-Adviser was reorganized into the Fund as of the date the Fund commenced operations (June 5, 2015). This privately offered fund was organized on March 2, 2006 and commenced operations on May 31, 2006 and had an investment objective and strategies that were, in all material respects, the same as those of the Fund, and was managed by the Fund’s Sub-Adviser in a manner that, in all material respects, complied with the investment guidelines and restrictions of the Fund. However, the privately offered fund was not registered as an investment company under the Investment Company Act of 1940, as amended (the “1940 Act”), and the privately offered fund was not subject to certain investment limitations, diversification requirements, liquidity requirements, and other restrictions imposed by the 1940 Act and the Internal Revenue Code of 1986 which, if applicable, may have adversely affected its performance.The Fund's performance for periods prior to the commencement of operations is that of the privately offered fund (net of actual fees and expenses charged to individual privately offered fund accounts in the aggregate). The performance of the privately offered fund has not been restated to reflect the fees, estimated expenses and fee waivers and/or expense limitations applicable to each class of shares of the Fund. If the performance of the privately offered fund had been restated to reflect the applicable fees and expenses of each class of shares of the Fund, the performance may have been higher or lower than the performance shown in the bar chart and Average Annual Total Returns table below. For periods following the Fund's commencement of operations on June 5, 2015, the performance of each class of shares differs as a result of the different levels of fees and expenses applicable to each class of shares, and performance for Class A shares reflects the impact of sales charges. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the MSCI Emerging Markets Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI Emerging Markets Index is a free float-adjusted market capitalization index that is designed to measure the equity market performance of emerging markets.The supplemental index shown is the MSCI Emerging Markets Value Index. The MSCI Emerging Markets Value Index captures large and mid-cap securities exhibiting overall value style characteristics across 24 emerging markets countries. The value investment style characteristics for index construction of the MSCI Emerging Markets Value Index are defined using three variables: book value to price, 12-month forward earnings to price and dividend yield.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. For periods following the Fund's commencement of operations on June 5, 2015, the performance of each class of shares differs as a result of the different levels of fees and expenses applicable to each class of shares, and performance for Class A shares reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the MSCI Emerging Markets Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI Emerging Markets Index is a free float-adjusted market capitalization index that is designed to measure the equity market performance of emerging markets. The supplemental index shown is the MSCI Emerging Markets Value Index. The MSCI Emerging Markets Value Index captures large and mid-cap securities exhibiting overall value style characteristics across 24 emerging markets countries. The value investment style characteristics for index construction of the MSCI Emerging Markets Value Index are defined using three variables: book value to price, 12-month forward earnings to price and dividend yield. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterDecember 31, 202026.34%Worst QuarterMarch 31, 2020-33.17%Year-to-DateSeptember 30, 202416.62% Best Quarter 2020-12-31 0.2634 Worst Quarter 2020-03-31 -0.3317 Year-to-Date 2024-09-30 0.1662 Average Annual Total Returns (for periods ended 12/31/23) 0.2269 0.0787 0.0509 0.2194 0.0648 0.0368 0.1463 0.0603 0.0367 0.2244 0.0774 0.0498 0.1763 0.0666 0.0439 0.0983 0.0368 0.0266 0.1421 0.0338 0.0194 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Investment Objective The Fund seeks long-term capital appreciation. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 49 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0 0.0375 0 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0055 0.0065 0.0065 0.0025 0.0057 0.0057 0.0057 0.0112 0.0122 0.0147 -0.0055 -0.0055 -0.0055 0.0057 0.0067 0.0092 Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets Excluding Waivers of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets Excluding Waivers reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. October 31, 2025 Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2 or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Investors may pay brokerage commissions on their purchases and sales of Institutional Class shares or I-2 shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 58 301 564 1314 68 333 617 1429 465 770 1097 2021 If you do not redeem your shares: 465 770 1097 2021 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 10% of the average value of its portfolio. 0.10 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances substantially all of its assets in (i) Institutional Class shares of the PIMCO RAE International Fund (“International Fund”) and the PIMCO RAE Emerging Markets Fund (“Emerging Markets Fund”) (together, the International Fund and the Emerging Markets Fund are referred to as the “Underlying Funds”), and (ii) securities that are eligible investments for the Underlying Funds. Under normal circumstances, each of the Underlying Funds obtains exposure to a portfolio of stocks (each, a “RAE Portfolio”) through investment in the securities that comprise the RAE Portfolio. The stocks are selected by the Fund’s sub-adviser, Research Affiliates, LLC (“Sub- Adviser”), from a broad universe of companies which satisfy certain liquidity and capacity requirements. With respect to its direct or indirect (through a fund) investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest.The Sub-Adviser uses the RAE™ methodology for portfolio construction. The RAE™ methodology is a rules-based model that selects stocks using quantitative signals that indicate higher expected returns, e.g., value, quality, and momentum. The model then weights selected stocks using their fundamental measures of company size, e.g.,sales, cash flow, dividends and book value. Actual stock positions in each RAE Portfolio, which drift apart from target weights as market prices change, are rebalanced to target weights periodically. The RAE™ methodology’s systematic portfolio rebalancing reflects a value orientation. Portfolio managers do not have discretion with respect to the allocations determined by the RAE™ methodology. The RAE™ methodology is not updated according to any predetermined schedule.The Sub-Adviser provides investment advisory services in connection with each Underlying Fund’s use of its respective RAE Portfolio by, among other things, providing PIMCO with the constituents and target weights in the relevant RAE Portfolio. Each Underlying Fund seeks to remain invested in the securities that comprise its respective RAE Portfolio even when the value of such RAE Portfolio is declining.The Fund’s portfolio, either directly or indirectly (through funds), will be economically tied to at least three non-U.S. countries. The Fund may also invest in derivative instruments, such as options, forwards, futures contracts, options on futures and swap agreements, consistent with its investment objective. The Fund may also invest in real estate investment trusts (“REITs”). The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund may also enter into reverse repurchase agreements and lend portfolio securities.The Fund may invest, without limitation, in securities and instruments denominated in foreign currencies and may also invest, without limitation, in securities of foreign issuers. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may obtain foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) without limitation. Subject to the restrictions and limitations of the Investment Company Act of 1940, as amended (the “1940 Act”), as well as the investment strategies described above and any other restrictions described in the Fund’s prospectus or Statement of Additional Information, the Fund may invest, without limitation, in other affiliated and unaffiliated funds, which may or may not be registered under the 1940 Act (together with the Underlying Funds, “Acquired Funds”). To the extent the Fund invests in Underlying Funds, PIMCO expects to select such Underlying Funds without considering or canvassing the universe of available unaffiliated Acquired Funds. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by the Sub-Adviser if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of market, issuer and liquidity risks. Distressed companies may be engaged in restructurings or bankruptcy proceedings, which may cause the value of their securities to fluctuate rapidly or unpredictably Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management Risk: the risk that the investment techniques and risk analyses applied by the Sub-Adviser, including the use of quantitative models or methods, will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to the Sub-Adviser and the individual portfolio managers in connection with managing the Fund and may cause the Sub-Adviser to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Small Company Risk: the risk that the value of equity securities issued by small companies, ranked by fundamental size as determined by the Sub-Adviser, may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions may not adequately take into account certain factors, or may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) two supplemental indexes. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the MSCI All Country World Index.The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI All Country World Index is a free-float adjusted market capitalization weighted index that is designed to measure the equity market performance of developed and emerging markets. The MSCI All Country World Index consists of a group of country indexes comprising developed and emerging market indexes. The MSCI All Country World ex US Value Index is a supplemental index of the Fund. The MSCI All Country World ex US Value Index captures large and mid-cap securities exhibiting overall value style characteristics across 22 developed and 24 emerging markets countries. The value investment style characteristics for index construction of the MSCI All Country World ex US Value Index are defined using three variables: book value to price, 12-month forward earnings to price and dividend yield. The MSCI All Country World ex US Index is also a supplemental index of the Fund. The MSCI All Country World ex US Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed and emerging markets. The MSCI All Country World ex US Index consists of 46 country indexes comprising 22 developed and 24 emerging market country indexes.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the MSCI All Country World Index.The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI All Country World Index is a free-float adjusted market capitalization weighted index that is designed to measure the equity market performance of developed and emerging markets. The MSCI All Country World ex US Index is also a supplemental index of the Fund. The MSCI All Country World ex US Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed and emerging markets. The MSCI All Country World ex US Index consists of 46 country indexes comprising 22 developed and 24 emerging market country indexes. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterDecember 31, 202022.97%Worst QuarterMarch 31, 2020-29.64%Year-to-DateSeptember 30, 202412.85% Best Quarter 2020-12-31 0.2297 Worst Quarter 2020-03-31 -0.2964 Year-to-Date 2024-09-30 0.1285 Average Annual Total Returns (for periods ended 12/31/23) 0.1929 0.0747 0.0476 2015-06-05 0.1665 0.0534 0.0318 0.1295 0.0541 0.0337 0.1920 0.0741 0.0468 2015-06-05 0.1449 0.0628 0.0394 2015-06-05 0.2220 0.1172 0.0852 0.1562 0.0708 0.0434 0.1730 0.0634 0.0357 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Investment Objective The Fund seeks long-term capital appreciation. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 49 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0 0.0375 0 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0050 0.0060 0.0060 0.0025 0.0002 0.0002 0.0002 0.0052 0.0062 0.0087 -0.0001 -0.0001 -0.0001 0.0051 0.0061 0.0086 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2 or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Investors may pay brokerage commissions on their purchases and sales of Institutional Class shares or I-2 shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 52 166 290 652 62 198 345 773 459 641 838 1406 If you do not redeem your shares: 459 641 838 1406 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 49% of the average value of its portfolio. 0.49 Principal Investment Strategies The Fund seeks to achieve its investment objective under normal circumstances by obtaining exposure to a portfolio of stocks economically tied to at least three foreign (non-U.S.) countries (“RAE International Portfolio”) through investment in the securities that comprise the RAE International Portfolio. The stocks are selected by the Fund’s sub-adviser, Research Affiliates, LLC (“Sub-Adviser”), from a broad universe of companies which satisfy certain liquidity and capacity requirements.The Sub-Adviser uses the RAE™ methodology for portfolio construction. The RAE™ methodology is a rules-based model that selects stocks using quantitative signals that indicate higher expected returns, e.g., value, quality, and momentum. The model then weights selected stocks using their fundamental measures of company size, e.g.,sales, cash flow, dividends and book value. Actual stock positions in the RAE International Portfolio, which drift apart from target weights as market prices change, are rebalanced to target weights periodically. The RAE™ methodology’s systematic portfolio rebalancing reflects a value orientation. Portfolio managers do not have discretion with respect to the allocations determined by the RAE™ methodology. The RAE™ methodology is not updated according to any predetermined schedule.The Sub-Adviser provides investment advisory services in connection with the Fund’s use of the RAE International Portfolio by, among other things, providing PIMCO with the constituents and target weights in the RAE International Portfolio. The Fund seeks to remain invested in the securities that comprise RAE International Portfolio even when the value of the RAE International Portfolio is declining.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. Equity-related securities include securities having an equity component (e.g., hybrids, bank capital) and equity derivatives. With respect to investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest. The Fund may also invest in derivative instruments, such as options, forwards, futures contracts, options on futures and swap agreements, consistent with its investment objective. The Fund may also invest in real estate investment trusts (“REITs”). The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund may also enter into reverse repurchase agreements and lend portfolio securities.The Fund may invest, without limitation, in securities and instruments denominated in foreign currencies and in securities of foreign issuers. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may obtain foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) without limitation. Principal Risks It is possible to lose money on an investment in the Fund. Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by the Sub-Adviser if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management Risk: the risk that the investment techniques and risk analyses applied by the Sub-Adviser, including the use of quantitative models or methods, will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to the Sub-Adviser and the individual portfolio managers in connection with managing the Fund and may cause the Sub-Adviser to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions may not adequately take into account certain factors, or may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the MSCI EAFE Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI EAFE Index is an unmanaged index designed to represent the performance of large and mid-cap securities across 21 developed markets, including countries in Europe, Australasia and the Far East, excluding the U.S. and Canada.The MSCI EAFE Value Index is a supplemental index of the Fund. The MSCI EAFE Value Index captures large and mid-cap securities exhibiting overall value style characteristics across developed markets countries around the world, excluding the US and Canada. The value investment style characteristics for index construction of the MSCI EAFE Value Index are defined using three variables: book value to price, 12- month forward earnings to price and dividend yield.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the MSCI EAFE Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI EAFE Index is an unmanaged index designed to represent the performance of large and mid-cap securities across 21 developed markets, including countries in Europe, Australasia and the Far East, excluding the U.S. and Canada. The MSCI EAFE Value Index is a supplemental index of the Fund. The MSCI EAFE Value Index captures large and mid-cap securities exhibiting overall value style characteristics across developed markets countries around the world, excluding the US and Canada. The value investment style characteristics for index construction of the MSCI EAFE Value Index are defined using three variables: book value to price, 12- month forward earnings to price and dividend yield. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterDecember 31, 202022.03%Worst QuarterMarch 31, 2020-28.54%Year-to-DateSeptember 30, 202411.66% Best Quarter 2020-12-31 0.2203 Worst Quarter 2020-03-31 -0.2854 Year-to-Date 2024-09-30 0.1166 Average Annual Total Returns (for periods ended 12/31/23) 0.1816 0.0738 0.0441 2015-06-05 0.1534 0.0476 0.0254 0.1243 0.0532 0.0311 0.1807 0.0726 0.0432 2015-06-05 0.1342 0.0618 0.0359 2015-06-05 0.1824 0.0816 0.0482 0.1895 0.0708 0.0370 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Investment Objective The Fund seeks long-term capital appreciation. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 49 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0 0 0.0375 0 0 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0040 0.0050 0.0060 0.0055 0.0025 0.0001 0.0001 0.0001 0.0001 0.0041 0.0051 0.0061 0.0081 -0.0001 -0.0001 -0.0006 -0.0001 0.0040 0.0050 0.0055 0.0080 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2, I-3 or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 41 131 229 517 51 163 284 640 56 189 334 756 454 623 807 1338 If you do not redeem your shares: 454 623 807 1338 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 73% of the average value of its portfolio. 0.73 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in securities of companies economically tied to the United States (for purposes of this section only, “U.S. companies”). Specifically, under normal circumstances, the Fund will obtain exposure to a portfolio of stocks of U.S. companies (“RAE US Portfolio”) through investment in the securities that comprise the RAE US Portfolio. The stocks are selected by the Fund’s sub-adviser, Research Affiliates, LLC (“Sub-Adviser”), from a broad universe of companies which satisfy certain liquidity and capacity requirements. The Sub-Adviser uses the RAE™ methodology for portfolio construction. The RAE™ methodology is a rules-based model that selects stocks using quantitative signals that indicate higher expected returns, e.g., value, quality, and momentum. The model then weights selected stocks using their fundamental measures of company size, e.g., sales, cash flow, dividends and book value. The Sub-Adviser applies the RAE™ methodology to the large and mid-sized U.S. companies as determined by cumulative fundamental measures of company size. The fundamental weights of U.S. companies are sorted in descending order where the top cumulative 86% weights are eligible as large and mid-sized companies. Actual stock positions in the RAE US Portfolio, which drift apart from target weights as market prices change, are rebalanced to target weights periodically. The RAE™ methodology’s systematic portfolio rebalancing reflects a value orientation. Portfolio managers do not have discretion with respect to the allocations determined by the RAE™ methodology. The RAE™ methodology is not updated according to any predetermined schedule.The Sub-Adviser provides investment advisory services in connection with the Fund’s use of the RAE US Portfolio by, among other things, providing PIMCO with the constituents and target weights in the RAE US Portfolio. The Fund seeks to remain invested in the securities that comprise the RAE US Portfolio even when the value of the RAE US Portfolio is declining.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. Equity-related securities include securities having an equity component (e.g., hybrids, bank capital) and equity derivatives. With respect to investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest. The Fund may also invest in derivative instruments, such as options, forwards, futures contracts, options on futures and swap agreements, consistent with its investment objective. The Fund may also invest in real estate investment trusts (“REITs”). The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund may also enter into reverse repurchase agreements and lend portfolio securities. Principal Risks It is possible to lose money on an investment in the Fund. Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by the Sub-Adviser if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management Risk: the risk that the investment techniques and risk analyses applied by the Sub-Adviser, including the use of quantitative models or methods, will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to the Sub-Adviser and the individual portfolio managers in connection with managing the Fund and may cause the Sub-Adviser to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions may not adequately take into account certain factors, or may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. A privately offered fund managed by the Fund’s Sub-Adviser was reorganized into the Fund as of the date the Fund commenced operations (June 5, 2015). This privately offered fund was organized on October 28, 2004 and commenced operations on December 22, 2004 and had an investment objective and strategies that were, in all material respects, the same as those of the Fund, and was managed by the Fund’s Sub-Adviser in a manner that, in all material respects, complied with the investment guidelines and restrictions of the Fund. However, the privately offered fund was not registered as an investment company under the Investment Company Act of 1940, as amended (the “1940 Act”), and the privately offered fund was not subject to certain investment limitations, diversification requirements, liquidity requirements, and other restrictions imposed by the 1940 Act and the Internal Revenue Code of 1986 which, if applicable, may have adversely affected its performance.The Fund's performance for periods prior to the commencement of operations is that of the privately offered fund (net of actual fees and expenses charged to individual privately offered fund accounts in the aggregate). The performance of the privately offered fund has not been restated to reflect the fees, estimated expenses and fee waivers and/or expense limitations applicable to each class of shares of the Fund. If the performance of the privately offered fund had been restated to reflect the applicable fees and expenses of each class of shares of the Fund, the performance may have been higher or lower than the performance shown in the bar chart and Average Annual Total Returns table below. For periods following the Fund's commencement of operations on June 5, 2015, the performance of each class of shares differs as a result of the different levels of fees and expenses applicable to each class of shares, and performance for Class A shares reflects the impact of sales charges. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The I-3 shares of the Fund have not commenced operations as of the date of this prospectus. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market. The Russell 1000® Value Index is a supplemental index of the Fund. The Russell 1000® Value Index, a subset of the Russell 1000® Index, measures the performance of large and mid-capitalization value sectors of the U.S. equity market, as defined by FTSE Russell.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. For periods following the Fund's commencement of operations on June 5, 2015, the performance of each class of shares differs as a result of the different levels of fees and expenses applicable to each class of shares, and performance for Class A shares reflects the impact of sales charges. The I-3 shares of the Fund have not commenced operations as of the date of this prospectus. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Russell 1000® Value Index is a supplemental index of the Fund. The Russell 1000® Value Index, a subset of the Russell 1000® Index, measures the performance of large and mid-capitalization value sectors of the U.S. equity market, as defined by FTSE Russell. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterDecember 31, 202017.06%Worst QuarterMarch 31, 2020-27.87%Year-to-DateSeptember 30, 202414.27% Best Quarter 2020-12-31 0.1706 Worst Quarter 2020-03-31 -0.2787 Year-to-Date 2024-09-30 0.1427 Average Annual Total Returns (for periods ended 12/31/23) 0.1707 0.1341 0.0981 0.1502 0.1162 0.0838 0.1114 0.1044 0.0769 0.1699 0.1330 0.0972 0.1219 0.1209 0.0901 0.2629 0.1569 0.1203 0.1146 0.1091 0.0840 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Investment Objective The Fund seeks long-term capital appreciation. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 49 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0 0.0375 0 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0050 0.0060 0.0065 0.0025 0.0001 0.0001 0.0001 0.0051 0.0061 0.0091 -0.0001 -0.0001 -0.0001 0.0050 0.0060 0.0090 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2 or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Investors may pay brokerage commissions on their purchases and sales of Institutional Class shares or I-2 shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 51 163 284 640 61 194 339 761 463 653 859 1452 If you do not redeem your shares: 463 653 859 1452 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 62% of the average value of its portfolio. 0.62 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in securities of small companies economically tied to the United States (for purposes of this section only, “U.S. companies”). Specifically, under normal circumstances, the Fund will obtain exposure to a portfolio of stocks of small U.S. companies (“RAE US Small Portfolio”) through investment in the securities that comprise the RAE US Small Portfolio. The stocks are selected by the Fund’s sub-adviser, Research Affiliates, LLC (“Sub-Adviser”), from a broad universe of companies which satisfy certain liquidity and capacity requirements.The Sub-Adviser uses the RAE™ methodology for portfolio construction. The RAE™ methodology is a rules-based model that selects stocks using quantitative signals that indicate higher expected returns, e.g., value, quality, and momentum. The model then weights selected stocks using their fundamental measures of company size, e.g.,sales, cash flow, dividends and book value. The Sub-Adviser applies the RAE™ methodology to small-sized U.S. companies determined by percentage of cumulative fundamental measures of company size. The fundamental weights of U.S. companies are sorted in descending order where the top cumulative 86% weights are eligible as large and mid-sized companies and the remaining companies are eligible as small-sized companies. Actual stock positions in the RAE US Small Portfolio, which drift apart from target weights as market prices change, are rebalanced to target weights periodically. The RAE™ methodology’s systematic portfolio rebalancing reflects a value orientation. Portfolio managers do not have discretion with respect to the allocations determined by the RAE™ methodology. The RAE™ methodology is not updated according to any predetermined schedule.The Sub-Adviser provides investment advisory services in connection with the Fund’s use of the RAE US Small Portfolio by, among other things, providing PIMCO with the constituents and target weights in the RAE US Small Portfolio. The Fund seeks to remain invested in the securities that comprise the RAE US Small Portfolio even when the value of the RAE US Small Portfolio is declining.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. Equity-related securities include securities having an equity component (e.g., hybrids, bank capital) and equity derivatives. With respect to investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest. The Fund may also invest in derivative instruments, such as options, forwards, futures contracts, options on futures and swap agreements, consistent with its investment objective. The Fund may also invest in real estate investment trusts (“REITs”). The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund may also enter into reverse repurchase agreements and lend portfolio securities. Principal Risks It is possible to lose money on an investment in the Fund. Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by the Sub-Adviser if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of market, issuer and liquidity risks. Distressed companies may be engaged in restructurings or bankruptcy proceedings, which may cause the value of their securities to fluctuate rapidly or unpredictably Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management Risk: the risk that the investment techniques and risk analyses applied by the Sub-Adviser, including the use of quantitative models or methods, will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to the Sub-Adviser and the individual portfolio managers in connection with managing the Fund and may cause the Sub-Adviser to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Small Company Risk: the risk that the value of equity securities issued by small companies, ranked by fundamental size as determined by the Sub-Adviser, may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions may not adequately take into account certain factors, or may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. A privately offered fund managed by the Fund’s Sub-Adviser was reorganized into the Fund as of the date the Fund commenced operations (June 5, 2015). This privately offered fund was organized on August 30, 2005 and commenced operations on September 29, 2005 and had an investment objective and strategies that were, in all material respects, the same as those of the Fund, and was managed by the Fund’s Sub-Adviser in a manner that, in all material respects, complied with the investment guidelines and restrictions of the Fund. However, the privately offered fund was not registered as an investment company under the Investment Company Act of 1940, as amended (the “1940 Act”), and the privately offered fund was not subject to certain investment limitations, diversification requirements, liquidity requirements, and other restrictions imposed by the 1940 Act and the Internal Revenue Code of 1986 which, if applicable, may have adversely affected its performance.The Fund’s performance for periods prior to the commencement of operations is that of the privately offered fund (net of actual fees and expenses charged to individual privately offered fund accounts in the aggregate). The performance of the privately offered fund has not been restated to reflect the fees, estimated expenses and fee waivers and/or expense limitations applicable to each class of shares of the Fund. If the performance of the privately offered fund had been restated to reflect the applicable fees and expenses of each class of shares of the Fund, the performance may have been higher or lower than the performance shown in the bar chart and Average Annual Total Returns table below. For periods following the Fund's commencement of operations on June 5, 2015, the performance of each class of shares differs as a result of the different levels of fees and expenses applicable to each class of shares, and performance for Class A shares reflects the impact of sales charges. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) two supplemental indexes. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market. The Russell 2000® Value Index is a supplemental index of the Fund. The Russell 2000® Value Index, a subset of the Russell 2000® Index, measures the performance of the small-capitalization value sector of the U.S. equity market, as defined by FTSE Russell. The Russell 2000® Index is also a supplemental index of the Fund. The Russell 2000® Index is composed of 2,000 of the smallest companies in the Russell 3000® Index and is considered to be representative of the small cap market in general.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. For periods following the Fund's commencement of operations on June 5, 2015, the performance of each class of shares differs as a result of the different levels of fees and expenses applicable to each class of shares, and performance for Class A shares reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Russell 2000® Index is also a supplemental index of the Fund. The Russell 2000® Index is composed of 2,000 of the smallest companies in the Russell 3000® Index and is considered to be representative of the small cap market in general. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterDecember 31, 202032.93%Worst QuarterMarch 31, 2020-37.33%Year-to-DateSeptember 30, 202418.59% Best Quarter 2020-12-31 0.3293 Worst Quarter 2020-03-31 -0.3733 Year-to-Date 2024-09-30 0.1859 Average Annual Total Returns (for periods ended 12/31/23) 0.2006 0.1561 0.0940 0.1956 0.1127 0.0691 0.1210 0.1123 0.0686 0.1989 0.1549 0.0930 0.1519 0.1427 0.0862 0.2629 0.1569 0.1203 0.1465 0.1000 0.0676 0.1693 0.0997 0.0716 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0 0.0100 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0003 0.0023 0.0028 0.0025 0.0050 0.0001 0.0001 0.0001 0.0068 0.0068 0.0068 0.0072 0.0117 0.0147 -0.0001 -0.0001 -0.0001 0.0071 0.0116 0.0146 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class A or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 73 229 400 894 662 900 1157 1891 149 464 802 1757 If you do not redeem your shares: 662 900 1157 1891 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 27% of the average value of its portfolio. 0.27 Principal Investment Strategies The PIMCO REALPATH® Blend Income Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. Unlike the other PIMCO REALPATH® Blend Funds, the Fund does not include a “self-elected” year of retirement in its name because the Fund is managed for shareholders who are retired or about to retire soon and are more focused on preservation of capital and withdrawing portions of their investments. The asset allocation of the Fund is based on the asset allocation at zero years left until retirement on the glide path and is intended to be used throughout an investor’s retirement. An investment in the Fund is not guaranteed, and you may experience losses. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current asset allocation is based on the asset allocation at zero years left until retirement on the glide path and is intended to be used throughout an investor’s retirement, which is assumed to begin at age 65 with time horizons based on current longevity of persons reaching age 65 in average health. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as a Fund approaches its target date, and the Fund’s asset allocation is based on the glide path at its target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date, which is the allocation for the Fund, remains constant beyond that date. However, PIMCO may choose to modify the target asset allocations of the glide path itself from time to time, and the Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date Retirement Income Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date Retirement Income Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202011.34%Worst QuarterJune 30, 2022-10.89%Year-to-DateSeptember 30, 20249.83% Best Quarter 2020-06-30 0.1134 Worst Quarter 2022-06-30 -0.1089 Year-to-Date 2024-09-30 0.0983 Average Annual Total Returns (for periods ended 12/31/23) 0.1087 0.0612 0.0492 2014-12-31 0.0932 0.0435 0.0344 0.0641 0.0405 0.0321 0.0436 0.0444 0.0377 2014-12-31 0.2629 0.1569 0.1184 0.1035 0.0490 0.0388 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0003 0.0023 0.0025 0.0001 0.0001 0.0065 0.0065 0.0069 0.0114 -0.0001 -0.0001 0.0068 0.0113 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 69 220 383 858 659 891 1142 1859 If you do not redeem your shares: 659 891 1142 1859 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 27% of the average value of its portfolio. 0.27 Principal Investment Strategies The PIMCO REALPATH® Blend 2025 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2025, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares.Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2025 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2025 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202012.64%Worst QuarterJune 30, 2022-11.79%Year-to-DateSeptember 30, 202410.12% Best Quarter 2020-06-30 0.1264 Worst Quarter 2022-06-30 -0.1179 Year-to-Date 2024-09-30 0.1012 Average Annual Total Returns (for periods ended 12/31/23) 0.1187 0.0719 0.0555 2014-12-31 0.1043 0.0553 0.0410 0.0700 0.0496 0.0374 0.0524 0.0547 0.0438 2014-12-31 0.2629 0.1569 0.1184 0.1299 0.0742 0.0588 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0 0.0100 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0003 0.0023 0.0028 0.0025 0.0050 0.0001 0.0001 0.0001 0.0054 0.0054 0.0054 0.0058 0.0103 0.0133 -0.0001 -0.0001 -0.0001 0.0057 0.0102 0.0132 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class A or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 58 185 323 725 648 859 1086 1739 134 420 728 1601 If you do not redeem your shares: 648 859 1086 1739 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 22% of the average value of its portfolio. 0.22 Principal Investment Strategies The PIMCO REALPATH® Blend 2030 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2030, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2030 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2030 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202014.10%Worst QuarterMarch 31, 2020-14.01%Year-to-DateSeptember 30, 202412.00% Best Quarter 2020-06-30 0.1410 Worst Quarter 2020-03-31 -0.1401 Year-to-Date 2024-09-30 0.1200 Average Annual Total Returns (for periods ended 12/31/23) 0.1370 0.0800 0.0615 2014-12-31 0.1238 0.0649 0.0476 0.0809 0.0568 0.0426 0.0688 0.0627 0.0498 2014-12-31 0.2629 0.1569 0.1184 0.1480 0.0842 0.0653 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0 0.0100 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0004 0.0024 0.0029 0.0025 0.0050 0.0001 0.0001 0.0001 0.0041 0.0041 0.0041 0.0046 0.0091 0.0121 -0.0001 -0.0001 -0.0001 0.0045 0.0090 0.0120 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class A or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 46 147 257 578 637 823 1025 1607 122 383 664 1465 If you do not redeem your shares: 637 823 1025 1607 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 14% of the average value of its portfolio. 0.14 Principal Investment Strategies The PIMCO REALPATH® Blend 2035 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2035, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2035 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2035 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202015.30%Worst QuarterMarch 31, 2020-16.58%Year-to-DateSeptember 30, 202413.57% Best Quarter 2020-06-30 0.1530 Worst Quarter 2020-03-31 -0.1658 Year-to-Date 2024-09-30 0.1357 Average Annual Total Returns (for periods ended 12/31/23) 0.1586 0.0905 0.0676 2014-12-31 0.1467 0.0769 0.0545 0.0937 0.0657 0.0479 0.0896 0.0731 0.0558 2014-12-31 0.2629 0.1569 0.1184 0.1663 0.0944 0.0719 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0 0.0100 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0005 0.0025 0.0030 0.0025 0.0050 0.0002 0.0002 0.0002 0.0029 0.0029 0.0029 0.0036 0.0081 0.0111 -0.0001 -0.0001 -0.0001 0.0035 0.0080 0.0110 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class A or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 36 115 201 455 627 793 974 1496 112 352 611 1351 If you do not redeem your shares: 627 793 974 1496 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 19% of the average value of its portfolio. 0.19 Principal Investment Strategies The PIMCO REALPATH® Blend 2040 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2040, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published,there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2040 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2040 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202016.31%Worst QuarterMarch 31, 2020-18.16%Year-to-DateSeptember 30, 202414.91% Best Quarter 2020-06-30 0.1631 Worst Quarter 2020-03-31 -0.1816 Year-to-Date 2024-09-30 0.1491 Average Annual Total Returns (for periods ended 12/31/23) 0.1725 0.0978 0.0720 2014-12-31 0.1613 0.0847 0.0593 0.1019 0.0719 0.0517 0.1030 0.0803 0.0601 2014-12-31 0.2629 0.1569 0.1184 0.1816 0.1022 0.0768 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0 0.0100 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0005 0.0025 0.0030 0.0025 0.0050 0.0001 0.0001 0.0001 0.0020 0.0020 0.0020 0.0026 0.0071 0.0101 -0.0001 -0.0001 -0.0001 0.0025 0.0070 0.0100 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class A or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 26 83 145 330 618 764 922 1383 102 321 557 1235 If you do not redeem your shares: 618 764 922 1383 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 20% of the average value of its portfolio. 0.20 Principal Investment Strategies The PIMCO REALPATH® Blend 2045 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2045, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2045 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2045 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202017.20%Worst QuarterMarch 31, 2020-19.46%Year-to-DateSeptember 30, 202415.85% Best Quarter 2020-06-30 0.1720 Worst Quarter 2020-03-31 -0.1946 Year-to-Date 2024-09-30 0.1585 Average Annual Total Returns (for periods ended 12/31/23) 0.1841 0.1033 0.0746 2014-12-31 0.1738 0.0908 0.0623 0.1088 0.0766 0.0542 0.1144 0.0857 0.0627 2014-12-31 0.2629 0.1569 0.1184 0.1914 0.1068 0.0799 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0 0.0100 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0005 0.0025 0.0030 0.0025 0.0050 0.0001 0.0001 0.0001 0.0014 0.0014 0.0014 0.0020 0.0065 0.0095 -0.0001 -0.0001 -0.0001 0.0019 0.0064 0.0094 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class A or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 19 63 112 254 612 746 891 1315 96 302 525 1165 If you do not redeem your shares: 612 746 891 1315 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 29% of the average value of its portfolio. 0.29 Principal Investment Strategies The PIMCO REALPATH® Blend 2050 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2050, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published,there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2050 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2050 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202017.67%Worst QuarterMarch 31, 2020-20.23%Year-to-DateSeptember 30, 202416.58% Best Quarter 2020-06-30 0.1767 Worst Quarter 2020-03-31 -0.2023 Year-to-Date 2024-09-30 0.1658 Average Annual Total Returns (for periods ended 12/31/23) 0.1913 0.1068 0.0767 2014-12-31 0.1812 0.0945 0.0645 0.1131 0.0795 0.0559 0.1202 0.0890 0.0648 2014-12-31 0.2629 0.1569 0.1184 0.1959 0.1092 0.0817 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0 0.0100 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0005 0.0025 0.0030 0.0025 0.0050 0.0001 0.0001 0.0001 0.0011 0.0011 0.0011 0.0017 0.0062 0.0092 -0.0001 -0.0001 -0.0001 0.0016 0.0061 0.0091 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class A or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 16 54 95 216 609 737 876 1281 93 292 508 1130 If you do not redeem your shares: 609 737 876 1281 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 21% of the average value of its portfolio. 0.21 Principal Investment Strategies The PIMCO REALPATH® Blend 2055 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2055, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges.The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2055 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Class R shares of the Fund have not commenced operations as of the date of this prospectus. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2055 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202017.55%Worst QuarterMarch 31, 2020-20.48%Year-to-DateSeptember 30, 202416.84% Best Quarter 2020-06-30 0.1755 Worst Quarter 2020-03-31 -0.2048 Year-to-Date 2024-09-30 0.1684 Average Annual Total Returns (for periods ended 12/31/23) 0.1955 0.1074 0.0769 2014-12-31 0.1855 0.0958 0.0650 0.1159 0.0803 0.0561 0.1240 0.0896 0.0647 2014-12-31 0.2629 0.1569 0.1184 0.1962 0.1098 0.0825 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0005 0.0025 0.0025 0.0001 0.0001 0.0010 0.0010 0.0016 0.0061 -0.0001 -0.0001 0.0015 0.0060 October 31, 2025 Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 15 51 89 204 608 734 871 1269 If you do not redeem your shares: 608 734 871 1269 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 12% of the average value of its portfolio. 0.12 Principal Investment Strategies The PIMCO REALPATH® Blend 2060 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2060, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce the Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2060 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2060 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterJune 30, 202017.76%Worst QuarterMarch 31, 2020-20.60%Year-to-DateSeptember 30, 202417.08% Best Quarter 2020-06-30 0.1776 Worst Quarter 2020-03-31 -0.2060 Year-to-Date 2024-09-30 0.1708 Average Annual Total Returns (for periods ended 12/31/23) 0.1992 0.0765 2019-12-31 0.1913 0.0635 0.1178 0.0551 0.1281 0.0564 2019-12-31 0.2629 0.1203 0.1974 0.0785 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary Investment Objective The Fund seeks to maximize total return, consistent with prudent investment management. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and example below.You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the “Classes of Shares” section on page 82 of the Fund’s prospectus, Appendix B to the Fund’s prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial professional. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. 50000 Shareholder Fees (fees paid directly from your investment): 0 0.0550 0 0.0100 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0005 0.0025 0.0025 0.0010 0.0010 0.0015 0.0060 Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. Example. The Example is intended to help you compare the cost of investing in Institutional Class or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then hold or redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: If you redeem your shares at the end of each period: 15 48 85 192 608 732 866 1259 If you do not redeem your shares: 608 732 866 1259 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 16% of the average value of its portfolio. 0.16 Principal Investment Strategies The PIMCO REALPATH® Blend 2065 Fund (the “Fund”) is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2065, the Fund’s target year. This is the “self-elected” year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Blend Funds is their asset allocation, which varies depending on the number of years left until the “self-elected” year of retirement indicated in the PIMCO REALPATH® Blend Fund’s name. The Fund’s allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund’s name. There is no guarantee that the Fund will provide adequate income at and through your retirement.In managing the Fund, PIMCO uses a three-step approach consisting of 1) developing and re-evaluating a long-term asset allocation “glide path”; 2) allocating between fixed income and equity exposures; and 3) utilizing hedging techniques to manage risks.The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds that are registered under the Investment Company Act of 1940, as amended (the “1940 Act”), equity securities, Fixed Income Instruments of varying maturities and credit qualities, or related derivatives, such as options, futures contracts, or swap agreements on any of the preceding securities mentioned. The “total return” sought by the Fund generally may consist of income earned on the Fund’s investments, plus capital appreciation, if any, which may arise from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest in Institutional Class or Class M shares of any funds of the PIMCO Equity Series (the “Trust”) and PIMCO Funds, and in other affiliated funds, including funds of PIMCO ETF Trust, except funds of funds and PIMCO California Municipal Intermediate Value Fund, PIMCO California Municipal Opportunistic Value Fund, PIMCO National Municipal Intermediate Value Fund and PIMCO National Municipal Opportunistic Value Fund (“Underlying PIMCO Funds”), and unaffiliated funds that are registered under the 1940 Act (collectively, “Acquired Funds”). Under normal circumstances, the Fund seeks to invest substantially all of its equity exposure in index tracking securities, including investments in affiliated or unaffiliated investment companies, which will be registered under the 1940 Act, or related derivatives on such securities or indexes. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. To the extent the Fund invests in Underlying PIMCO Funds, PIMCO expects to select such Underlying PIMCO Funds without considering or canvassing the universe of available unaffiliated Acquired Funds.The Fund’s long-term asset allocations are based on a “glide path” developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund’s current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Blend Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Blend Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. PIMCO may choose to modify the target asset allocations of the glide path itself from time to time. The Fund intends to rebalance its portfolio’s asset allocation to that of the glide path on a monthly basis.As the Fund reaches the target year indicated in the Fund’s name, it is anticipated that it will be combined with the PIMCO REALPATH® Blend Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of both Funds and their respective shareholders. Prior to any combination, which is anticipated to occur on or after the target year indicated in the Fund’s name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Blend Income Fund.As part of its investment process, PIMCO expects to seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce the Fund’s exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions, such as through the use of equity index put options, once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO. However, there can be no assurance that the Fund’s hedging transactions will be effective.PIMCO evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Summary information about the Underlying PIMCO Funds can be found in the Fund’s prospectus. More complete information about the Underlying PIMCO Funds can be found in the Underlying PIMCO Funds’ prospectuses, statements of additional information and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without notice. Principal Risks It is possible to lose money on an investment in the Fund. Allocation Risk: the risk that the Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines Acquired Fund Risk: the risk that the Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of the Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives. In addition, the Fund’s performance will be reduced by the Fund’s proportionate amount of the expenses of any Acquired Funds in which it investsThe following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds. Small Fund Risk: the risk that a smaller fund may not achieve investment or trading efficiencies. Additionally, a smaller fund may be more adversely affected by large purchases or redemptions of fund shares Equity Risk: the risk that the value of equity or equity-related securities such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur Interest Rate Risk: the risk that fixed income securities will fluctuate in value because of a change in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer’s credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment or may not realize the full anticipated earnings from the investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations High Yield and Distressed Company Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) and securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risks. Securities of distressed companies include both debt and equity securities. High yield securities and debt securities of distressed companies are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments. Distressed companies may be engaged in restructurings or bankruptcy proceedings Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income funds may be higher than normal, causing increased supply in the market due to selling activity Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks, and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, foreign currency exchange rates, commodity index volatility, changes in inflation, interest rates, or supply and demand factors affecting a particular industry or commodity market, such as drought, floods, weather, livestock disease, pandemics and public health emergencies, embargoes, taxation, war, terrorism, cyber hacking, economic and political developments, environmental proceedings, tariffs, changes in storage costs, availability of transportation systems, and international economic, political and regulatory developments Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk. The Fund may invest in any tranche of mortgage-related and other asset-backed securities, including junior and/or equity tranches (to the extent consistent with other of the Fund's guidelines), which generally carry higher levels of the foregoing risks Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Real Estate Risk: the risk that the Fund’s investments in real estate investment trusts (“REITs”) or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund’s investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer’s inability or unwillingness to make principal or interest payments in a timely fashion Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably, due to narrow markets and limited managerial and financial resources Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio managers in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved Short Exposure Risk: the risk of entering into short sales or other short positions, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale or other short position will not fulfill its contractual obligations, causing a loss to the Fund Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is “qualifying income” under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund’s taxable income or gains and distributions Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a “Subsidiary”), the Fund is indirectly exposed to the risks associated with a Subsidiary’s investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk LIBOR Transition Risk: the risk related to the discontinuation of the London Interbank Offered Rate (“LIBOR”). Certain instruments held by the Fund may reference LIBOR. Due to benchmark reforms, publication of all LIBOR settings has ceased. Although LIBOR is no longer published, there are potential effects related to the transition away from LIBOR or the prior use of LIBOR on the Fund, or on certain instruments in which the Fund invests, which can be difficult to ascertain and could result in losses to the Fund Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund’s Institutional Class shares. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index (i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The S&P Target Date 2065 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/product-finder. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P Target Date 2065 Index is a supplemental index of the Fund. The index seeks to represent a broadly derived consensus for asset allocations that target a particular investment horizon, with asset class exposures driven by a survey of available target date funds for that horizon. These asset class exposures include U.S. large cap, U.S. mid cap, U.S. small cap, international equities, emerging markets, U.S. and international real estate investment trusts, core fixed income, short term treasuries, TIPS, high yield corporate bonds and commodities and are represented by exchange-traded funds in the Index calculation. https://www.pimco.com/en-us/product-finder Calendar Year Total Returns — Institutional Class Best QuarterDecember 31, 202310.68%Worst QuarterSeptember 30, 2023-3.79%Year-to-DateSeptember 30, 202417.11% Best Quarter 2023-12-31 0.1068 Worst Quarter 2023-09-30 -0.0379 Year-to-Date 2024-09-30 0.1711 Average Annual Total Returns (for periods ended 12/31/23) 0.1957 0.1951 2022-12-30 0.1886 0.1880 0.1159 0.1457 0.1255 0.1251 2022-12-30 0.2629 0.2621 0.1984 0.1978 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Investment Objective The Fund seeks to track the investment results of the RAFI Dynamic Multi-Factor Emerging Markets Index. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. Shareholder Fees (fees paid directly from your investment): Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0049 0.0002 0.0051 -0.0001 0.0050 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in the Fund with the costs of investing in other exchange-traded funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then hold or sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 51 163 284 640 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 39% of the average value of its portfolio. 0.39 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the component securities (“Component Securities”) of the RAFI Dynamic Multi-Factor Emerging Markets Index (the “Underlying Index”). The Fund may invest the remainder of its assets in cash, securities and instruments that are not Component Securities, but which PIMCO believes will help the Fund track its Underlying Index. The Underlying Index is designed to provide long-only exposure to multiple equity factors that seek to produce attractive long-term returns, and which may lower risk compared to less diversified strategies.The Underlying Index is constructed by RAFI Indices, LLC (the “Index Provider”) using a rules-based approach to construct factor portfolios within the Underlying Index. The universe for the Underlying Index construction process starts with all common equity securities traded on primary exchanges, and preferred shares in countries where preferred shares are economically equivalent to common, which meet and pass minimum liquidity and investability (capacity) requirements, issued by companies that are assigned to countries classified by the Index Provider as emerging markets. As of September 30, 2024, there are 24 emerging market countries eligible for inclusion. The Index Provider assigns companies to countries and promulgates that assignment to securities. Eligible securities are then determined by selecting companies based on fundamental weight, calculated using four accounting measures from company financial statements: (i) de-levered sales, calculated as company sales averaged over the past five years multiplied by the ratio of average equity to average assets; (ii) cash flow, taken as the company operating cash flow averaged over the past five years; (iii) dividend plus buybacks, calculated using the average dividends paid and share buybacks over the past five years; and (iv) book value, taken as the most recent company book value. At each annual reconstitution, companies that rank in the top 86% of cumulative fundamental weight are eligible for selection in the Underlying Index.The Underlying Index consists of “factor portfolios,” each of which emphasizes one of the following factors: value, low volatility, quality and momentum. The value factor emphasizes companies with a high ratio of company fundamental weight to its market capitalization weight. The low volatility factor emphasizes companies with low risk measure calculated as the variance of a company’s daily excess return over five years explained by global, local country groups, and global industry excess returns. The quality factor emphasizes companies that are high in profitability and low in investment spending. The momentum factor emphasizes stocks with high momentum. For the value, low volatility and quality “factor portfolios”, eligible securities are ranked by their factor score and the top 25% of companies by fundamental weight are selected for inclusion within that “factor portfolio”. For the momentum “factor portfolio”, eligible securities are ranked by their momentum score and the top 50% of companies by fundamental weight are selected for inclusion. A company’s fundamental weight may be adjusted by a “free float factor”, which is the ratio of the total market capitalization of the shares of the company in free float to the total market capitalization of the company. As of September 30, 2024, the Underlying Index consisted of 808 Component Securities.The Underlying Index dynamically allocates to each factor at each quarterly rebalance. Dynamic allocation starts with an equal weighting to each factor plus an additional weight, which is based on a calculation of a factor’s standard momentum and long-term reversal signal relative to the other factors. Additional weights to a particular factor are capped at a maximum of 15% and minimum of -15% relative to equal weighting.Each factor (other than momentum) is reconstituted annually on the third Friday of March and rebalanced on a quarterly staggered basis on the last Friday of March, June, September and third Friday of December. For example, a single factor will be divided into four identical tranches. At the first quarterly rebalance, the first tranche (i.e., 25% of the factor) is rebalanced, but the remaining three tranches (i.e., the other 75% of the factor) are not rebalanced and will continue to drift until the next quarterly rebalance. At the next quarterly rebalance, the second tranche is rebalanced while the other three tranches (including the tranche that was rebalanced at the prior quarter-end) are not rebalanced. This staggered rebalancing is intended to diversify risk and decrease market impact. The momentum factor, unlike the other factors, is reconstituted and fully rebalanced quarterly. At each quarterly rebalance, trading controls are implemented to minimize turnover.PIMCO uses an indexing approach in managing the Fund’s investments. The Fund employs a representative sampling strategy in seeking to achieve its investment objective. In using this strategy, PIMCO seeks to invest in a combination of Component Securities and other instruments, or in Component Securities but in different proportions as compared to the weighting of the Underlying Index, such that the portfolio effectively provides exposure to the Underlying Index. In using a representative sampling strategy, the Fund may not track its Underlying Index with the same degree of accuracy as a fund that replicates the composition and weighting of the Underlying Index. Unlike many investment companies, the Fund does not attempt to outperform the index the Fund tracks. An indexing approach may eliminate the chance that the Fund will substantially outperform its Underlying Index but also may reduce some of the risks of active management. Indexing seeks to achieve lower costs by keeping portfolio turnover low in comparison to actively managed investment companies.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. The Fund may also invest in derivative instruments, such as options, futures contracts or swap agreements. The Fund may invest, without limitation, in securities and instruments denominated in foreign currencies and in securities of foreign issuers. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may obtain foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) without limitation. Principal Risks It is possible to lose money on an investment in the Fund. Market Trading Risk: the risk that an active secondary trading market for Fund shares does not continue once developed, that the Fund may not continue to meet a listing exchange’s trading or listing requirements, that trading in Fund shares may be halted or become less liquid or that Fund shares trade at prices other than the Fund’s net asset value, and are subject to trading costs, which may be exacerbated if the creation/redemption process becomes less effective, particularly during times of market stress Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. The liquidity of the Fund’s shares may be constrained by the liquidity of the Fund’s portfolio holdings Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker, or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk China Risk: investing in securities and instruments economically tied to the People’s Republic of China (excluding Hong Kong, Macau and Taiwan for the purpose of this disclosure) (“PRC”) subjects the Fund to the risks of investing in foreign (non-U.S.) securities and emerging market securities, as well as additional risks including, without limitation, inefficiencies resulting from erratic growth, the unavailability of consistently-reliable economic data, dependence on exports and international trade, asset price volatility, potential shortage of liquidity and limited accessibility by foreign (non-U.S.) investors, fluctuations in currency exchange rates, currency devaluation, the relatively small size and absence of operating history of many PRC companies, and the developing nature of the legal and regulatory framework for securities markets, custody arrangements and commerce Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions, including the indexation methodologies used in constructing the Underlying Index, may not adequately take into account certain factors, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management and Tracking Error Risk: the risk that a portfolio manager’s investment decisions may not produce the desired results or that the Fund’s portfolio may not closely track the Underlying Index for a number of reasons. The Fund incurs operating expenses, which are not applicable to the Underlying Index, and the costs of buying and selling securities, especially when rebalancing the Fund’s portfolio to reflect changes in the composition of the Underlying Index. Performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index due to legal restrictions, cost or liquidity restraints. The risk that performance of the Fund and the Underlying Index may vary may be heightened during periods of increased market volatility or other unusual market conditions. In addition, the Fund’s use of a representative sampling approach may cause the Fund to be less correlated to the return of the Underlying Index than if the Fund held all of the securities in the Underlying Index Indexing Risk: the risk that the Fund is negatively affected by general declines in the asset classes represented by the Underlying Index An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the MSCI Emerging Markets Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI Emerging Markets Index is a free float-adjusted market capitalization index that is designed to measure the equity market performance of emerging markets.The RAFI Dynamic Multi-Factor Emerging Markets Index is a supplemental index of the Fund. The RAFI Dynamic Multi-Factor Emerging Markets Index strategy takes time-varying exposures to four return factors; value, low volatility, quality, and momentum. The Index uses recent and historical metrics to tilt toward factor portfolios which are intended to be particularly attractive on a forward looking basis.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/investments/etf. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the MSCI Emerging Markets Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI Emerging Markets Index is a free float-adjusted market capitalization index that is designed to measure the equity market performance of emerging markets. The RAFI Dynamic Multi-Factor Emerging Markets Index is a supplemental index of the Fund. The RAFI Dynamic Multi-Factor Emerging Markets Index strategy takes time-varying exposures to four return factors; value, low volatility, quality, and momentum. The Index uses recent and historical metrics to tilt toward factor portfolios which are intended to be particularly attractive on a forward looking basis. https://www.pimco.com/en-us/investments/etf Calendar Year Total Returns Best QuarterDecember 31, 202022.44%Worst QuarterMarch 31, 2020-29.39%Year-to-DateSeptember 30, 202412.90% Best Quarter 2020-12-31 0.2244 Worst Quarter 2020-03-31 -0.2939 Year-to-Date 2024-09-30 0.1290 Average Annual Total Returns (for periods ended 12/31/23) 0.1434 0.0569 0.0293 2017-08-31 0.1319 0.0341 0.0102 0.0918 0.0417 0.0201 0.0983 0.0368 0.0145 0.1552 0.0670 0.0376 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. Investment Objective The Fund seeks to track the investment results of the RAFI Dynamic Multi-Factor Developed Ex-U.S. Index. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. Shareholder Fees (fees paid directly from your investment): Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0039 0.0001 0.0040 -0.0001 0.0039 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in the Fund with the costs of investing in other exchange-traded funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then hold or sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 40 127 223 504 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 29% of the average value of its portfolio. 0.29 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the component securities (“Component Securities”) of the RAFI Dynamic Multi-Factor Developed Ex-U.S. Index (the “Underlying Index”). The Fund may invest the remainder of its assets in cash, securities and instruments that are not Component Securities, but which PIMCO believes will help the Fund track its Underlying Index. The Underlying Index is designed to provide long-only exposure to multiple equity factors that seek to produce attractive long-term returns, and which may lower risk compared to less diversified strategies.The Underlying Index is constructed by RAFI Indices, LLC (the “Index Provider”) using a rules-based approach to construct factor portfolios within the Underlying Index. The universe for the Underlying Index construction process starts with all common equity securities traded on primary exchanges, and preferred shares in countries where preferred shares are economically equivalent to common, which meet and pass minimum liquidity and investability (capacity) requirements, issued by companies that are assigned to countries classified by the Index Provider to fall within the following regions, Developed Europe ex-U.K., U.K., Japan and Other Developed Markets. As of September 30, 2024, there are 22 developed market countries (excluding the United States) eligible for inclusion. The Index Provider assigns companies to countries and promulgates that assignment to securities. Eligible securities are then determined by selecting companies based on fundamental weight, calculated using four accounting measures from company financial statements: (i) de-levered sales, calculated as company sales averaged over the past five years multiplied by the ratio of average equity to average assets; (ii) cash flow, taken as the company operating cash flow averaged over the past five years; (iii) dividend plus buybacks, calculated using the average dividends paid and share buybacks over the past five years; and (iv) book value, taken as the most recent company book value. At each annual reconstitution, companies that rank in the top 86% of cumulative fundamental weight within each region constitute the large/mid company universe. Companies that rank in the top 98% by fundamental weight, excluding companies in the top 86%, within each region constitute the small company universe.The Underlying Index consists of “factor portfolios,” each of which emphasizes one of the following factors: value, low volatility, quality, momentum and size. The value factor emphasizes companies with a high ratio of company fundamental weight to its market capitalization weight. The low volatility factor emphasizes companies with low risk measure calculated as the variance of a company’s daily excess return over five years explained by global, local country groups, and global industry excess returns. The quality factor emphasizes companies that are high in profitability and low in investment spending. The momentum factor emphasizes stocks with high momentum. For the value, low volatility and quality “factor portfolios”, eligible securities are ranked by their factor score and the top 25% of companies by fundamental weight are selected for inclusion within that “factor portfolio”. For the momentum “factor portfolio”, eligible securities are ranked by their momentum score and the top 50% of companies by fundamental weight are selected for inclusion. The size factor is the equal weight of the small company portions of the other four factors. A company’s fundamental weight may be adjusted by a “free float factor”, which is the ratio of the total market capitalization of the shares of the company in free float to the total market capitalization of the company. As of September 30, 2024, the Underlying Index consisted of 1,747Component Securities.The Underlying Index dynamically allocates to each factor at each quarterly rebalance. Dynamic allocation starts with an equal weighting to each factor plus an additional weight, which is based on a calculation of a factor’s standard momentum and long-term reversal signal relative to the other factors. Additional weights to a particular factor are capped at a maximum of 15% and minimum of -15% relative to equal weighting.Each factor (other than momentum) is reconstituted annually on the last Friday of March and rebalanced on a quarterly staggered basis on the last Friday of March, June, September and third Friday of December. For example, a single factor will be divided into four identical tranches. At the first quarterly rebalance, the first tranche (i.e., 25% of the factor) is rebalanced, but the remaining three tranches (i.e., the other 75% of the factor) are not rebalanced and will continue to drift until the next quarterly rebalance. At the next quarterly rebalance, the second tranche is rebalanced while the other three tranches (including the tranche that was rebalanced at the prior quarter-end) are not rebalanced. This staggered rebalancing is intended to diversify risk and decrease market impact. The momentum factor, unlike the other factors, is reconstituted and fully rebalanced quarterly. At each quarterly rebalance, trading controls are implemented to minimize turnover.PIMCO uses an indexing approach in managing the Fund’s investments. The Fund employs a representative sampling strategy in seeking to achieve its investment objective. In using this strategy, PIMCO seeks to invest in a combination of Component Securities and other instruments, or in Component Securities but in different proportions as compared to the weighting of the Underlying Index, such that the portfolio effectively provides exposure to the Underlying Index. In using a representative sampling strategy, the Fund may not track its Underlying Index with the same degree of accuracy as a fund that replicates the composition and weighting of the Underlying Index. Unlike many investment companies, the Fund does not attempt to outperform the index the Fund tracks. An indexing approach may eliminate the chance that the Fund will substantially outperform its Underlying Index but also may reduce some of the risks of active management. Indexing seeks to achieve lower costs by keeping portfolio turnover low in comparison to actively managed investment companies.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. The Fund may also invest in derivative instruments, such as options, futures contracts or swap agreements. The Fund may invest, without limitation, in securities and instruments denominated in foreign currencies and in securities of foreign issuers. The Fund may obtain foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) without limitation. Principal Risks It is possible to lose money on an investment in the Fund. Market Trading Risk: the risk that an active secondary trading market for Fund shares does not continue once developed, that the Fund may not continue to meet a listing exchange’s trading or listing requirements, that trading in Fund shares may be halted or become less liquid or that Fund shares trade at prices other than the Fund’s net asset value, and are subject to trading costs, which may be exacerbated if the creation/redemption process becomes less effective, particularly during times of market stress Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. The liquidity of the Fund’s shares may be constrained by the liquidity of the Fund’s portfolio holdings Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker, or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund’s investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions, including the indexation methodologies used in constructing the Underlying Index, may not adequately take into account certain factors, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management and Tracking Error Risk: the risk that a portfolio manager’s investment decisions may not produce the desired results or that the Fund’s portfolio may not closely track the Underlying Index for a number of reasons. The Fund incurs operating expenses, which are not applicable to the Underlying Index, and the costs of buying and selling securities, especially when rebalancing the Fund’s portfolio to reflect changes in the composition of the Underlying Index. Performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index due to legal restrictions, cost or liquidity restraints. The risk that performance of the Fund and the Underlying Index may vary may be heightened during periods of increased market volatility or other unusual market conditions. In addition, the Fund’s use of a representative sampling approach may cause the Fund to be less correlated to the return of the Underlying Index than if the Fund held all of the securities in the Underlying Index Indexing Risk: the risk that the Fund is negatively affected by general declines in the asset classes represented by the Underlying Index An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index. Effective July 24, 2024, the Fund’s regulatory index is the MSCI EAFE Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI EAFE Index is an unmanaged index designed to represent the performance of large and mid-cap securities across 21 developed markets, including countries in Europe, Australasia and the Far East, excluding the U.S. and Canada.The RAFI Dynamic Multi-Factor Developed ex- U.S. Index is a supplemental index of the Fund. The RAFI Dynamic Multi-Factor Developed ex- U.S. Index takes time-varying exposures to five return factors; value, low volatility, quality, momentum and size. The Index uses recent and historical metrics to tilt toward factor portfolios which are intended to be particularly attractive on a forward looking basis.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/investments/etf. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the MSCI EAFE Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The MSCI EAFE Index is an unmanaged index designed to represent the performance of large and mid-cap securities across 21 developed markets, including countries in Europe, Australasia and the Far East, excluding the U.S. and Canada. The RAFI Dynamic Multi-Factor Developed ex- U.S. Index is a supplemental index of the Fund. The RAFI Dynamic Multi-Factor Developed ex- U.S. Index takes time-varying exposures to five return factors; value, low volatility, quality, momentum and size. The Index uses recent and historical metrics to tilt toward factor portfolios which are intended to be particularly attractive on a forward looking basis. https://www.pimco.com/en-us/investments/etf Calendar Year Total Returns Best QuarterDecember 31, 202216.93%Worst QuarterMarch 31, 2020-23.62%Year-to-DateSeptember 30, 202413.11% Best Quarter 2022-12-31 0.1693 Worst Quarter 2020-03-31 -0.2362 Year-to-Date 2024-09-30 0.1311 Average Annual Total Returns (for periods ended 12/31/23) 0.1714 0.0838 0.0528 2017-08-31 0.1643 0.0772 0.0463 0.1092 0.0658 0.0409 0.1824 0.0816 0.0501 0.1705 0.0859 0.0553 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. Investment Objective The Fund seeks to track the investment results of the RAFI Dynamic Multi-Factor U.S. Index. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. Shareholder Fees (fees paid directly from your investment): Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0029 0.0001 0.0030 -0.0001 0.0029 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in the Fund with the costs of investing in other exchange-traded funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then hold or sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 30 95 168 380 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 41% of the average value of its portfolio. 0.41 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the component securities (“Component Securities”) of the RAFI Dynamic Multi-Factor U.S. Index (the “Underlying Index”). The Fund may invest the remainder of its assets in cash, securities and instruments that are not Component Securities, but which PIMCO believes will help the Fund track its Underlying Index. The Underlying Index is designed to provide long-only exposure to multiple equity factors that seek to produce attractive long-term returns, and which may lower risk compared to less diversified strategies.The Underlying Index is constructed by RAFI Indices, LLC (the “Index Provider”) using a rules-based approach to construct factor portfolios within the Underlying Index. The universe for the Underlying Index construction process starts with all common equity securities traded on primary exchanges, which meet and pass minimum liquidity and investability (capacity) requirements, issued by companies that are assigned to the United States by the Index Provider. The Index Provider assigns companies to countries and promulgates that assignment to securities. Eligible securities are then determined by selecting companies based on fundamental weight, calculated using four accounting measures from company financial statements: (i) de-levered sales, calculated as company sales averaged over the past five years multiplied by the ratio of average equity to average assets; (ii) cash flow, taken as the company operating cash flow averaged over the past five years; (iii) dividend plus buybacks, calculated using the average dividends paid and share buybacks over the past five years; and (iv) book value, taken as the most recent company book value. At each annual reconstitution, companies that rank in the top 86% of cumulative fundamental weight within each region constitute the large/mid company universe. Companies that rank in the top 98% by fundamental weight, excluding companies in the top 86%, within each region constitute the small company universe.The Underlying Index consists of “factor portfolios,” each of which emphasizes one of the following factors: value, low volatility, quality, momentum and size. The value factor emphasizes companies with a high ratio of company fundamental weight to its market capitalization weight. The low volatility factor emphasizes companies with low risk measure calculated as the variance of a company’s daily excess return over five years explained by global, local country groups, and global industry excess returns. The quality factor emphasizes companies that are high in profitability and low in investment spending. The momentum factor emphasizes stocks with high momentum. For the value, low volatility and quality “factor portfolios”, eligible securities are ranked by their factor score and the top 25% of companies by fundamental weight are selected for inclusion within that “factor portfolio”. For the momentum “factor portfolio”, eligible securities are ranked by their momentum score and the top 50% of companies by fundamental weight are selected for inclusion. The size factor is the equal weight of the small company portions of the other four factors. A company’s fundamental weight may be adjusted by a “free float factor”, which is the ratio of the total market capitalization of the shares of the company in free float to the total market capitalization of the company. As of September 30, 2024, the Underlying Index consisted of 836 Component Securities.The Underlying Index dynamically allocates to each factor at each quarterly rebalance. Dynamic allocation starts with an equal weighting to each factor plus an additional weight, which is based on a calculation of a factor’s standard momentum and long-term reversal signal relative to the other factors. Additional weights to a particular factor are capped at a maximum of 15% and minimum of -15% relative to equal weighting.Each factor (other than momentum) is reconstituted annually on the last Friday of March and rebalanced on a quarterly staggered basis on the last Friday of March, June, September and third Friday of December. For example, a single factor will be divided into four identical tranches. At the first quarterly rebalance, the first tranche (i.e., 25% of the factor) is rebalanced, but the remaining three tranches (i.e., the other 75% of the factor) are not rebalanced and will continue to drift until the next quarterly rebalance. At the next quarterly rebalance, the second tranche is rebalanced while the other three tranches (including the tranche that was rebalanced at the prior quarter-end) are not rebalanced. This staggered rebalancing is intended to diversify risk and decrease market impact. The momentum factor, unlike the other factors, is reconstituted and fully rebalanced quarterly. At each quarterly rebalance, trading controls are implemented to minimize turnover.PIMCO uses an indexing approach in managing the Fund’s investments. The Fund is expected to employ a replication strategy in seeking to achieve its investment objective. In using this strategy, PIMCO seeks to replicate the composition and weighting of the Underlying Index by investing all, or substantially all, of the Fund’s assets in the Component Securities, holding each Component Security in approximately the same proportion as its weighting in the Underlying Index. However, in some circumstances it may not be possible or practicable to invest all, or substantially all, of the Fund’s assets in the Component Securities, in which case the Fund may employ a representative sampling strategy by investing in a combination of Component Securities and other instruments, or in Component Securities but in different proportions as compared to the weighting of the Underlying Index, such that the portfolio effectively provides exposure to the Underlying Index. In using a representative sampling strategy, the Fund may not track its Underlying Index with the same degree of accuracy as a fund that replicates the composition and weighting of the Underlying Index. Unlike many investment companies, the Fund does not attempt to outperform the index the Fund tracks. An indexing approach may eliminate the chance that the Fund will substantially outperform its Underlying Index but also may reduce some of the risks of active management. Indexing seeks to achieve lower costs by keeping portfolio turnover low in comparison to actively managed investment companies.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. The Fund may also invest in derivative instruments, such as options, futures contracts or swap agreements. Principal Risks It is possible to lose money on an investment in the Fund. Market Trading Risk: the risk that an active secondary trading market for Fund shares does not continue once developed, that the Fund may not continue to meet a listing exchange’s trading or listing requirements, that trading in Fund shares may be halted or become less liquid or that Fund shares trade at prices other than the Fund’s net asset value, and are subject to trading costs, which may be exacerbated if the creation/redemption process becomes less effective, particularly during times of market stress Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. The liquidity of the Fund’s shares may be constrained by the liquidity of the Fund’s portfolio holdings Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for Non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker, or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions, including the indexation methodologies used in constructing the Underlying Index, may not adequately take into account certain factors, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management and Tracking Error Risk: the risk that a portfolio manager’s investment decisions may not produce the desired results or that the Fund’s portfolio may not closely track the Underlying Index for a number of reasons. The Fund incurs operating expenses, which are not applicable to the Underlying Index, and the costs of buying and selling securities, especially when rebalancing the Fund’s portfolio to reflect changes in the composition of the Underlying Index. Performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index due to legal restrictions, cost or liquidity restraints. The risk that performance of the Fund and the Underlying Index may vary may be heightened during periods of increased market volatility or other unusual market conditions. In addition, to the extent the Fund uses a representative sampling approach, this approach may cause the Fund to be less correlated to the return of the Underlying Index than if the Fund held all of the securities in the Underlying Index Indexing Risk: the risk that the Fund is negatively affected by general declines in the asset classes represented by the Underlying Index An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The RAFI Dynamic Multi-Factor U.S. Index is a supplemental index of the Fund. The RAFI Dynamic Multi-Factor U.S. Index takes time-varying exposures to five return factors; value, low volatility, quality, momentum and size. The Index uses recent and historical metrics to tilt toward factor portfolios which are intended to be particularly attractive on a forward looking basis.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/investments/etf. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The RAFI Dynamic Multi-Factor U.S. Index is a supplemental index of the Fund. The RAFI Dynamic Multi-Factor U.S. Index takes time-varying exposures to five return factors; value, low volatility, quality, momentum and size. The Index uses recent and historical metrics to tilt toward factor portfolios which are intended to be particularly attractive on a forward looking basis. https://www.pimco.com/en-us/investments/etf Calendar Year Total Returns Best QuarterJune 30, 202018.22%Worst QuarterMarch 31, 2020-24.22%Year-to-DateSeptember 30, 202421.43% Best Quarter 2020-06-30 0.1822 Worst Quarter 2020-03-31 -0.2422 Year-to-Date 2024-09-30 0.2143 Average Annual Total Returns (for periods ended 12/31/23) 0.1222 0.1287 0.1068 2017-08-31 0.1167 0.1232 0.1012 0.0758 0.1019 0.0845 0.2629 0.1569 0.1289 0.1251 0.1324 0.1105 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. Investment Objective The Fund seeks to provide total return that closely corresponds, before fees and expenses, to the total return of the RAFI ESG US Index. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. Shareholder Fees (fees paid directly from your investment): Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): 0.0029 0.0001 0.0030 -0.0001 0.0029 October 31, 2025 Example. The Example is intended to help you compare the cost of investing in the Fund with the costs of investing in other exchange-traded funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then hold or sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 30 95 168 380 Portfolio Turnover The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 18% of the average value of its portfolio. 0.18 Principal Investment Strategies The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the component securities (“Component Securities”) of the RAFI ESG US Index (the “Underlying Index”). The Fund may invest the remainder of its assets in cash, securities and instruments that are not Component Securities, but which PIMCO believes will help the Fund track its Underlying Index. The Underlying Index is a long-only, smart beta index that seeks to achieve the dual objectives of social responsibility and long-horizon outperformance of the broad market.The Underlying Index is constructed by RAFI Indices, LLC (the “Index Provider”) using a rules-based approach within publicly traded U.S. equities to create an integrated ESG strategy which overweights companies that rate well across various ESG (Environmental, Social, and Governance) themes and excludes companies with a major involvement in industries such as tobacco, gaming, weapons and fossil fuels. The strategy supplements traditional ESG metrics with metrics linked to long-term value creation, specifically financial discipline and diversity, for improved return potential.The Underlying Index applies the Fundamental Index™ approach, a smart beta strategy built on the principles of contrarian indexing and disciplined rebalancing. The universe for the Underlying Index construction process starts with all common equity securities traded on U.S. primary exchanges, which meet and pass minimum liquidity and investability (capacity) requirements, issued by companies that are assigned to the United States by the Index Provider. Eligible securities are then determined by selecting companies based on fundamental weight, calculated using four accounting measures from company financial statements: (i) de-levered sales, calculated as company sales averaged over the past five years multiplied by the ratio of average equity to average assets; (ii) cash flow, taken as the company operating cash flow averaged over the past five years; (iii) dividend plus buybacks, calculated using the average dividends paid and share buybacks over the past five years; and (iv) book value, taken as the most recent company book value. The Underlying Index is composed of securities selected from companies in the large/mid company universe, which is the universe of companies that rank in the top 86% of cumulative fundamental weight.The Underlying Index uses five signals to determine a company’s overall ESG score: environment, social, governance, diversity and financial discipline. The environment, social, governance and diversity scores are determined using data provided by Vigeo Eiris, a third-party ESG data and ratings provider (the “ESG Data Provider”). The ESG Data Provider assesses hundreds of different factors within a framework of sustainability criteria based on international standards in determining the environment, social and governance scores. The ESG Data Provider also considers numerous different metrics relating to gender diversity in determining the diversity scores. The financial discipline score is determined by the Index Provider and is intended to identify companies with high profitability, low investment, low issuance and low accruals. To construct the Underlying Index, companies are sorted in descending order by their environment, social, governance, diversity and financial discipline scores, respectively.Companies in the bottom 10% by fundamental weight, for each respective signal, are excluded. In addition, companies classified by the ESG Data Provider as having major involvement in the following areas are excluded: tobacco, gambling, weapons - civilian firearms and military, fossil fuels, coal, tar sands and oil shale. Selected companies are weighted by their fundamental weight, adjusted by the companies’ respective overall ESG scores. As of September 30, 2024, the Underlying Index consisted of 246 Component Securities.The Underlying Index is reconstituted annually on the last Friday of March and rebalanced on a quarterly staggered basis on the last Friday day of March, June, September and third Friday of December. For example, the Underlying Index will be divided into four identical tranches. At the first quarterly rebalance, the first tranche (i.e., 25% of the Underlying Index) is rebalanced, but the remaining three tranches (i.e., the other 75% of the Underlying Index) are not rebalanced and will continue to drift until the next quarterly rebalance. At the next quarterly rebalance, the second tranche is rebalanced while the other three tranches (including the tranche that was rebalanced at the prior quarter-end) are not rebalanced. This staggered rebalancing is intended to diversify risk and decrease market impact of trading.PIMCO uses an indexing approach in managing the Fund’s investments. The Fund is expected to employ a replication strategy in seeking to achieve its investment objective. In using this strategy, PIMCO seeks to replicate the composition and weighting of the Underlying Index by investing all, or substantially all, of the Fund’s assets in the Component Securities, holding each Component Security in approximately the same proportion as its weighting in the Underlying Index. However, in some circumstances it may not be possible or practicable to invest all, or substantially all, of the Fund’s assets in the Component Securities, in which case the Fund may employ a representative sampling strategy by investing in a combination of Component Securities and other instruments, or in Component Securities but in different proportions as compared to the weighting of the Underlying Index, such that the portfolio effectively provides exposure to the Underlying Index. In using a representative sampling strategy, the Fund may not track its Underlying Index with the same degree of accuracy as a fund that replicates the composition and weighting of the Underlying Index. Unlike many investment companies, the Fund does not attempt to outperform the index the Fund tracks. An indexing approach may eliminate the chance that the Fund will substantially outperform its Underlying Index but also may reduce some of the risks of active management. Indexing seeks to achieve lower costs by keeping portfolio turnover low in comparison to actively managed investment companies.The Fund may invest, without limitation, in equity and equity-related securities, including common and preferred securities. The Fund may also invest in derivative instruments, such as options, futures contracts or swap agreements. Principal Risks It is possible to lose money on an investment in the Fund. Small Fund Risk: the risk that a smaller fund may not achieve investment or trading efficiencies. Additionally, a smaller fund may be more adversely affected by large purchases or redemptions of fund shares Market Trading Risk: the risk that an active secondary trading market for Fund shares does not continue once developed, that the Fund may not continue to meet a listing exchange’s trading or listing requirements, that trading in Fund shares may be halted or become less liquid or that Fund shares trade at prices other than the Fund’s net asset value, and are subject to trading costs, which may be exacerbated if the creation/redemption process becomes less effective, particularly during times of market stress Equity Risk: the risk that the value of equity or equity-related securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities. In addition, preferred securities may be subject to greater credit risk or other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rates, regulatory changes and special redemption rights Credit Risk: the risk that the Fund could lose money if the counterparty to a derivative contract, or the issuer or guarantor of collateral, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid investments at an advantageous time or price or achieve its desired level of exposure to a certain sector. The liquidity of the Fund’s shares may be constrained by the liquidity of the Fund’s portfolio holdings Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, changes in financial condition or credit rating, financial leverage, reputation or reduced demand for the issuer’s goods or services Derivatives Risk: the risk of investing in derivative instruments (such as forwards, futures, swaps and structured securities) and other similar investments, including leverage, liquidity, interest rate, market, counterparty (including credit), operational, legal and management risks and valuation complexity. Changes in the value of a derivative or other similar investment may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. Changes in the value of a derivative or other similar instrument may also create margin delivery or settlement payment obligations for the Fund. The Fund’s use of derivatives or other similar investments may result in losses to the Fund, a reduction in the Fund’s returns and/or increased volatility. Non-centrally-cleared over-the-counter (“OTC”) derivatives or other similar investments are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for Non-centrally-cleared OTC derivatives or other similar investments. The primary credit risk on derivatives or other similar investments that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker, or the clearinghouse. Changes in regulation relating to a registered fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives or other similar investments and/or adversely affect the value of derivatives or other similar investments and the Fund’s performance Model Risk: the risk that the Fund’s investment models used in making investment allocation decisions, including the indexation methodologies used in constructing the Underlying Index, may not adequately take into account certain factors, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs, any of which may result in a decline in the value of an investment in the Fund Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss Management and Tracking Error Risk: the risk that a portfolio manager’s investment decisions may not produce the desired results or that the Fund’s portfolio may not closely track the Underlying Index for a number of reasons. The Fund incurs operating expenses, which are not applicable to the Underlying Index, and the costs of buying and selling securities, especially when rebalancing the Fund’s portfolio to reflect changes in the composition of the Underlying Index. Performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index due to legal restrictions, cost or liquidity restraints. The risk that performance of the Fund and the Underlying Index may vary may be heightened during periods of increased market volatility or other unusual market conditions. In addition, to the extent the Fund uses a representative sampling approach, this approach may cause the Fund to be less correlated to the return of the Underlying Index than if the Fund held all of the securities in the Underlying Index Indexing Risk: the risk that the Fund is negatively affected by general declines in the asset classes represented by the Underlying Index Environmental, Social and Governance Investing Risk: the risk that, because the Underlying Index may select or exclude securities of certain issuers for reasons other than performance, the Fund’s performance will differ from funds that do not utilize an ESG investing strategy. ESG investing is qualitative and subjective by nature, and there is no guarantee that the factors utilized by the Index Provider or any judgment exercised by the Index Provider in constructing the Underlying Index will reflect the opinions of any particular investor An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Performance Information The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.In addition to the Fund’s performance, the Average Annual Total Returns table includes performance of: (i) a broad-based securities market index(i.e., a regulatory index) and (ii) a supplemental index. It is not possible to invest directly in an unmanaged index.Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The S&P 500 Index focuses on the large-cap segment of the U.S. equities market.The RAFI ESG US Index is a supplemental index of the Fund. The RAFI ESG US Index is a long-only, smart beta index that seeks to achieve the dual objectives of social responsibility and long-horizon outperformance of the broad market. The RAFI ESG US Index is constructed by RAFI Indices, LLC using a rules-based approach within publicly traded U.S. equities to create an integrated ESG strategy which overweights companies that rate well across various ESG (Environmental, Social, and Governance) themes and excludes companies with a major involvement in industries such as tobacco, gaming, weapons and fossil fuels. The strategy supplements traditional ESG metrics with metrics linked to long-term value creation, specifically financial discipline and diversity, for improved return potential.Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily and quarterly updates on the net asset value and performance page at https://www.pimco.com/en-us/investments/etf. The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns compare with the returns of certain indexes. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Effective July 24, 2024, the Fund’s regulatory index is the S&P 500 Index. The Fund’s regulatory index is shown in connection with certain regulatory requirements to provide a broad measure of market performance. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The RAFI ESG US Index is a supplemental index of the Fund. The RAFI ESG US Index is a long-only, smart beta index that seeks to achieve the dual objectives of social responsibility and long-horizon outperformance of the broad market. The RAFI ESG US Index is constructed by RAFI Indices, LLC using a rules-based approach within publicly traded U.S. equities to create an integrated ESG strategy which overweights companies that rate well across various ESG (Environmental, Social, and Governance) themes and excludes companies with a major involvement in industries such as tobacco, gaming, weapons and fossil fuels. The strategy supplements traditional ESG metrics with metrics linked to long-term value creation, specifically financial discipline and diversity, for improved return potential. https://www.pimco.com/en-us/investments/etf Calendar Year Total Returns Best QuarterDecember 31, 202015.98%Worst QuarterMarch 31, 2020-25.64%Year-to-DateSeptember 30, 202415.49% Best Quarter 2020-12-31 0.1598 Worst Quarter 2020-03-31 -0.2564 Year-to-Date 2024-09-30 0.1549 Average Annual Total Returns (for periods ended 12/31/23) 0.1872 0.0905 2019-12-18 0.1817 0.0847 0.1142 0.0698 0.2629 0.1228 0.1893 0.0935 After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. “Other Expenses” include expenses incurred by the Fund in the normal course of its operations together with recoupment of management fees previously waived or reimbursed to the Fund. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.30%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.27%, 0.72% and 1.02% for Institutional Class, Class A and Class R shares, respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include interest expense of 0.11% and expenses incurred by the Fund in the normal course of its operations. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Excluding interest expense, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.71%, 0.81%, 0.86%, 1.06% and 1.81% for Institutional Class, I-2, I-3, Class A and Class C shares respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. PIMCO has contractually agreed, through October 31, 2025, to reduce its supervisory and administrative fee for the Fund’s I-3 shares by 0.05% of the average daily net assets attributable to I-3 shares of the Fund. This Fee Waiver Agreement renews annually unless terminated by PIMCO upon at least 30 days’ prior notice to the end of the contract term. PIMCO has contractually agreed, through October 31, 2025, to waive, first, the advisory fee and, second, the supervisory and administrative fee it receives from the Fund in an amount equal to the expenses attributable to the Management Fees of Underlying Funds indirectly incurred by the Fund in connection with its investments in Underlying Funds, up to a maximum waived amount that is equal to the Fund’s aggregate advisory fee and supervisory and administrative fee. This waiver renews annually for a full year unless terminated by PIMCO upon at least 30 days’ notice prior to the end of the contract term. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include interest expense of 0.01% and expenses incurred by the Fund in the normal course of its operations. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Excluding interest expense, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.50%, 0.60% and 0.85% for Institutional Class, I-2 and Class A shares, respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.01%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.56%, 0.66%, 0.91% for Institutional Class, I-2 and Class A shares, respectively. Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets Excluding Waivers of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets Excluding Waivers reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. PIMCO has contractually agreed, through October 31, 2025, to waive, first, the advisory fee and, second, the supervisory and administrative fee it receives from the Fund in an amount equal to the expenses attributable to the Management Fees of Underlying Funds indirectly incurred by the Fund in connection with its investments in Underlying Funds, up to a maximum waived amount that is equal to the Fund’s aggregate advisory fee and supervisory and administrative fee. This waiver renews annually for a full year unless terminated by PIMCO upon at least 30 days’ notice prior to the end of the contract term. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include expenses incurred by the Fund in the normal course of its operations together with recoupment of management fees previously waived or reimbursed to the Fund. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.03%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.12% and 0.57% for Institutional Class and Class A shares, respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include expenses incurred by the Fund in the normal course of its operations together with recoupment of management fees previously waived or reimbursed to the Fund. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s management fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment management agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the management fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.03%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses are 0.12% and 0.57% for Institutional Class and Class A shares, respectively. Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include interest expense of 0.01% and expenses incurred by the Fund in the normal course of its operations. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Excluding interest expense, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.49%. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s management fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment management agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the management fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. PIMCO has contractually agreed, through October 31, 2025, to reduce its supervisory and administrative fee for the Fund’s I-3 shares by 0.05% of the average daily net assets attributable to I-3 shares of the Fund. This Fee Waiver Agreement renews annually unless terminated by PIMCO upon at least 30 days’ prior notice to the end of the contract term. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include interest expense of 0.02% and expenses incurred by the Fund in the normal course of its operations. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Excluding interest expense, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.75%, 0.85% and 1.10% for Institutional Class, I-2 and Class A shares respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” and Acquired Fund Fees and Expenses include interest expense of the Fund and of the Underlying PIMCO Funds of 0.01% and 0.15%, respectively. Interest expense is borne by the Fund and the Underlying PIMCO Funds separatelyfrom the management fees paid to PIMCO. Excluding interest expense of the Fund and of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.19%, 0.64% and 0.94% for Institutional Class, Class A and Class R shares, respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include expenses incurred by the Fund in the normal course of its operations together with recoupment of management fees previously waived or reimbursed to the Fund. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.22%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.23%, 0.68% and 0.98% for Institutional Class, Class A and Class R shares, respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include expenses incurred by the Fund in the normal course of its operations together with recoupment of management fees previously waived or reimbursed to the Fund. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.09%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.16%, 0.61% and 0.91% for Institutional Class, Class A and Class R shares, respectively. PIMCO has contractually agreed, through October 31, 2025, to waive a portion of the Fund’s supervisory and administrative fees, or reimburse the Fund, to the extent that the Fund’s organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata share of Trustee fees exceed 0.0049% (the “Expense Limit”) (calculated as a percentage of average daily net assets attributable to each class). This Expense Limitation Agreement will automatically renew for one-year terms unless PIMCO provides written notice to PIMCO Equity Series at least 30 days prior to the end of the then current term. In any month in which the investment advisory contract or supervision and administration agreement is in effect, PIMCO is entitled to reimbursement by the Fund of any portion of the supervisory and administrative fee waived or reimbursed as set forth above (the “Reimbursement Amount”) within thirty-six months of the time of the waiver, provided that such amount paid to PIMCO will not: 1) together with any organizational expenses, pro rata share of expenses related to obtaining or maintaining a Legal Entity Identifier and pro rata Trustee fees, exceed, for such month, the Expense Limit (or the amount of the expense limit in place at the time the amount being recouped was originally waived if lower than the Expense Limit); 2) exceed the total Reimbursement Amount; or 3) include any amounts previously reimbursed to PIMCO. Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund’s prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses. After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary. “Other Expenses” include expenses incurred by the Fund in the normal course of its operations together with recoupment of management fees previously waived or reimbursed to the Fund. Such expenses are borne by the Fund separately from the management fees paid to Pacific Investment Management Company LLC (“PIMCO”). Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.06%. Interest expense can result from certain transactions within the Underlying PIMCO Funds and is separate from the management fees paid to PIMCO. Excluding interest expense of the Underlying PIMCO Funds, Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement are 0.13%, 0.58% and 0.88% for Institutional Class, Class A and Class R shares, respectively.