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-0.0363 0.3631 0.3397 0.2518 -0.2893 0.3990 0.2616 0.1627 0.1076 0.2585 -0.0488 0.3674 0.5088 0.0710 -0.2641 0.1713 0.1490 0.0903 0.0438 0.3190 0.0066 0.3460 0.4978 0.2321 -0.3246 0.4331 0.2955 0.1262 2026-02-27 N-1A American Century Mutual Funds, Inc. 2026-03-01 Balanced Fund Investment Objective The fund seeks long-term capital growth and current income by investing approximately 60% of its assets in equity securities and the remainder in bonds and other fixed-income securities. Fees and Expenses <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following table describes the fees and expenses 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 examples below.</span></div> Shareholder Fees (fees paid directly from your investment) 25 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0088 0.0068 0.0068 0 0 0 0.0001 0.0001 0.0001 0.0089 0.0069 0.0069 Example The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn 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: 91 284 494 1096 71 221 385 859 71 221 385 859 Portfolio Turnover <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund pays transaction costs, such as commissions, 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 annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 84% of the average value of its portfolio.</span> 0.84 Principal Investment Strategies <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">For the equity portion of the fund, the fund will generally invest in large capitalization companies it believes show business improvement using a proprietary multi-factor model that combines fundamental measures of a stock’s value and growth potential with sustainability (environmental, social, and governance) characteristics.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">To measure value, the portfolio managers may use ratios of stock price-to-earnings and stock price-to-cash flow. To measure growth, the managers may use the rate of growth of a company’s earnings and cash flow and changes in its earnings estimates. The model also considers price momentum. The team evaluates multiple sustainability characteristics utilizing internal data and research, as well as third party commercial data sources and scoring systems. To the extent such information is available and relevant for a particular company, portfolio managers will consider, among others, a company’s carbon emission profile, energy and water usage, or waste generation (environmental), a company’s employee turnover rates, digital privacy, or worker safety (social), and a company’s corporate leadership, including board chair independence and the independence of audit and compensation committees or shareholder rights such as say on pay (governance). If sustainability characteristics are unavailable or incomplete, a security may still be selected for the portfolio if the portfolio managers believe they can evaluate the security qualitatively, or if the financial metrics and/or remaining sustainability characteristics merit investment. Qualitative review of portfolio securities may include examination of registration statements and other information provided by the company as well as engagement with company management.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Each security is evaluated on a sector-specific basis, and the fund seeks to hold securities with the strongest attributes in their respective sectors. Using this process, the portfolio managers attempt to build a portfolio of stocks that provides better returns without taking on significant additional risk, and maintains a stronger sustainability profile than the S&amp;P 500</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%">®</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> Index.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">For the fixed-income portion of the fund, the portfolio managers invest in a diversified portfolio of high- and medium-grade non-money market debt securities. These securities, which may be payable in U.S. or foreign currencies, may include corporate bonds and notes, government securities, bank loans, securities backed by mortgages or other assets and collateralized debt obligations (including collateralized loan obligations). Shorter-term debt securities round out the portfolio. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund also may invest in derivative instruments such as options, futures contracts, options on futures contracts, and swap agreements (including, but not limited to, credit default swap agreements), or in mortgage- or asset-backed securities, provided that such investments are in keeping with the fund's investment objective. The fund may use foreign currency exchange contracts to shift investment exposure from one currency into another for hedging purposes.</span></div> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Style Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — If at any time the market is not favoring the quantitative investment style used to manage the fund’s equity portion, that portion’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Investment Process Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — Stocks selected by the portfolio managers using quantitative models may perform differently than expected due to the portfolio managers’ judgments regarding the factors used in the models, the weight placed on each factor, changes from the factors’ historical trends, and technical issues with the construction and implementation of the models (including, for example, data problems and/or software or other implementation issues). There is no guarantee that the use of the quantitative models will result in effective investment decisions for the fund. Additionally, the commonality of portfolio holdings across quantitative investment managers may amplify losses.</span> <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">ESG Risk</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — Because the fund considers environmental, social, and governance (ESG) data to evaluate a company’s sustainability characteristics in addition to fundamental financial metrics when selecting securities, its portfolio may perform differently than funds that do not consider sustainability characteristics. Sustainability considerations may prioritize long term rather than short term returns. Furthermore, when evaluating sustainability characteristics for securities, portfolio managers may rely on third party sources, which can vary in scope and methodology, and may only take into account one of many sustainability aspects of a portfolio company.</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:120%"> </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Sustainability data used by the portfolio managers often lacks standardization consistency, and also may not be available, complete or accurate.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Market Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Interest Rate Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — Investments in debt securities are sensitive to interest rate changes. Generally, the value of debt securities and the funds that hold them decline as interest rates rise. The fund’s fixed-income investments are designed to reduce this risk. Interest rate risk, however, is generally higher for the fixed-income portion of the Balanced Fund than for funds that have shorter-weighted maturities, such as money market funds and short-term bond funds. A period of rising interest rates may negatively affect the fund’s performance.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Credit Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — Debt securities, even investment-grade debt securities, are subject to credit risk. Credit risk is the risk that the inability or perceived inability of the issuer to make interest and principal payments will cause the value of the securities to decrease. As a result the fund’s share price could also decrease. Changes in the credit rating of a debt security held by the fund could have a similar effect.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Prepayment and Extension Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The fund may invest in debt securities backed by mortgages or other assets. If these underlying assets are prepaid, the fund may benefit less from declining interest rates than funds of similar maturity that invest less heavily in mortgage- and asset-backed securities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> Conversely, an issuer may exercise its right to pay principal on an obligation held by the fund later than expected (extend the obligation) especially in periods of rising interest rates. These events may lengthen the maturity and potentially reduce the value of these securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Foreign Securities Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — Foreign securities have certain unique risks, such as currency risk, social, political and economic risk, and foreign market and trading risk. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Bank Loan Risk </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">— The market for bank loans may not be highly liquid and the fund may have difficulty selling them. Bank loans may not be considered securities, thus the fund may not be afforded anti-fraud protections available under the federal securities laws. In connection with purchasing loan participations, the fund generally will have no right to enforce compliance by borrowers with loan terms nor any set off rights, and the fund may not benefit directly from any posted collateral. As a result, the fund may be subject to the credit risk of both the borrower and the lender selling the participation. Bank loan transactions may take more than seven days to settle, meaning that proceeds would be unavailable to make additional investments or meet redemptions.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Collateralized Obligations Risk </span>— Collateralized obligations, such as collateralized loan obligations (CLOs), are subject to credit, interest rate, valuation, and prepayment and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The market value of collateralized obligations may be affected by, among other things, changes in the market value of the underlying assets held by the collateralized obligation, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, and prices and interest rates of underlying assets. Lower rated tranches of such debt are subject to a higher risk of total loss and deferral or nonpayment of interest than the more senior tranches to which they are subordinated. Some of the collateralized obligations in which the fund invests may be covenant-lite loans. Covenant-lite loans contain fewer or less restrictive constraints on the borrower. The fund may have fewer rights against a borrower and an accompanying greater risk of loss when it invests in covenant-lite loans. <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Derivative Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional instruments. Derivatives are subject to a number of risks, including liquidity, interest rate, market, credit and correlation risk. Derivatives used for hedging or risk management may not operate as intended, may expose the fund to other risks, and may be insufficient to protect the fund from the risks they were intended to hedge.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Liquidity Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The fund may also be subject to liquidity risk. During periods of market turbulence or unusually low trading activity, in order to meet redemptions it may be necessary for the fund to sell securities at prices that could have an adverse effect on the fund’s share price. Changing regulatory and market conditions, including increases in interest rates and credit spreads may adversely affect the liquidity of the fund’s investments.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Price Volatility Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The value of the fund’s shares may fluctuate significantly in the short term.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Principal Loss Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.</span> An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. Fund Performance <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for a blended index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The blended index combines two widely known indices in proportion to the asset mix of the fund. Accordingly, 60% of the index is represented by the S&amp;P 500 Index, which reflects the approximately 60% of the fund’s assets invested in stocks. The blended index’s remaining 40% is represented by the Bloomberg U.S. Aggregate Bond Index, which reflects the roughly 40% of the fund’s assets invested in fixed-income securities.</span></div>Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for a blended index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. americancentury.com Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. Calendar Year Total Returns Highest Performance Quarter (2Q 2020): 13.21% Lowest Performance Quarter (2Q 2022): -12.34% Highest Performance Quarter 2020-06-30 0.1321 Lowest Performance Quarter 2022-06-30 -0.1234 Average Annual Total ReturnsFor the calendar year ended December 31, 2025 Investor Class Return Before Taxes 0.0960 0.0645 0.0799 Return After Taxes on Distributions 0.0893 0.0477 0.0638 Return After Taxes on Distributions and Sale of Fund Shares 0.0578 0.0448 0.0591 I Class Return Before Taxes 0.0975 0.0666 0.0821 R5 Class1 Return Before Taxes 0.0981 0.0666 0.0821 S&P 500® Index   (reflects no deduction for fees, expenses or taxes) (reflects no deduction for fees, expenses or taxes) 0.1788 0.1442 0.1482 Bloomberg U.S. Aggregate Bond Index   (reflects no deduction for fees, expenses or taxes) 0.0730 -0.0036 0.0201 Blended Index   (reflects no deduction for fees, expenses or taxes) 0.1370 0.0847 0.0978 2017-04-10 <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</span></div> The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. Growth Fund Investment Objective <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund seeks long-term capital growth.</span></div> Fees and Expenses <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following table describes the fees and expenses 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 examples 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 American Century Investments funds. More information about these and other discounts is available from your financial professional and in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Calculation of Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> on page 15 of the fund’s prospectus, </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix A</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the fund’s prospectus and </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix B</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the statement of additional information.</span></div> 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 American Century Investments funds. 50000 Shareholder Fees (fees paid directly from your investment) 0 0 0 0.0575 0 0 0 0 0 0 0 0 0 0.0100 0 0 0 0 25 0 0 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0096 0.0076 0.0061 0.0096 0.0096 0.0096 0.0076 0.0061 0.0061 0 0 0 0.0025 0.0100 0.0050 0 0 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0096 0.0076 0.0061 0.0121 0.0196 0.0146 0.0076 0.0061 0.0061 -0.0013 -0.0013 -0.0013 -0.0013 -0.0013 -0.0013 -0.0013 -0.0013 -0.0061 0.0083 0.0063 0.0048 0.0108 0.0183 0.0133 0.0063 0.0048 0.0000 <span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:120%">Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.</span> February 28, 2027 Example The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example also assumes that the fund’s operating expenses remain the same except, that it reflects the rate and duration of any fee waivers noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 85 293 519 1166 65 230 410 930 49 183 328 750 679 925 1191 1945 186 604 1046 2078 136 450 786 1734 65 230 410 930 49 183 328 750 0 0 0 0 Portfolio Turnover <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund pays transaction costs, such as commissions, 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 annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 38% of the average value of its portfolio.</span></div> 0.38 Principal Investment Strategies <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers look for stocks of companies they believe will increase in value over time. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers use a variety of analytical research tools and techniques to identify the stocks of larger-sized companies that meet their investment criteria. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers make decisions about buying or holding the stocks of companies they believe have favorable growth prospects and selling the stocks of companies whose characteristics no longer meet their criteria. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund may write covered calls on a portion of the fund’s holdings in common stock when the portfolio managers believe call premiums are attractive relative to the price of the underlying security.</span></div> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Growth Stocks</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%">Risk </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">– Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Style Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Market Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Price Volatility Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares may fluctuate significantly in the short term.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Foreign Securities Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Covered Call Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Diversification Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund is classified as diversified pursuant to the Investment Company Act, with diversification measured at the time of acquisition of investments. Subsequent market fluctuations may cause the fund to exceed such diversification limits and the fund may hold a greater percentage of its assets in a smaller number of securities. To the extent this occurs, a price change in any one of those securities may have a greater impact on the fund’s share price and the fund may be more volatile.</span> <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:3.37pt">Redemption Risk </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">– The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Principal Loss Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.</span> <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.</span></div> Fund Performance <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 1000</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">®</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> Growth Index, which the advisor considers to be more representative of the fund’s investment strategy.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.</span></div> The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 1000® Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. americancentury.com. Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. Calendar Year Total Returns <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%">Highest Performance Quarter (2Q 2020): 27.93% Lowest Performance Quarter (2Q 2022): -22.01%</span></div> Highest Performance Quarter 2020-06-30 0.2793 Lowest Performance Quarter 2022-06-30 -0.2201 Average Annual Total ReturnsFor the calendar year ended December 31, 2025 Investor Class Return Before Taxes 0.1523 0.1274 0.1609 1971-06-30 Return After Taxes on Distributions 0.1119 0.1071 0.1399 1971-06-30 Return After Taxes on Distributions and Sale of Fund Shares 0.1186 0.0992 0.1295 1971-06-30 I Class Return Before Taxes 0.1546 0.1297 0.1632 1997-06-16 Y Class1 Return Before Taxes 0.1562 0.1314 0.1649 2017-04-10 A Class Return Before Taxes 0.0833 0.1114 0.1511 1997-06-04 C Class2 Return Before Taxes 0.1406 0.1162 0.1511 2010-03-01 R Class Return Before Taxes 0.1465 0.1218 0.1550 2003-08-29 R5 Class3 Return Before Taxes 0.1544 0.1296 0.1632 2017-04-10 R6 Class Return Before Taxes 0.1561 0.1314 0.1649 2013-07-26 G Class Return Before Taxes 0.1621 0.1523 2022-03-01 Russell 1000® Index   (reflects no deduction for fees, expenses or taxes) (reflects no deduction for fees, expenses or taxes) 0.1737 0.1359 0.1459 Russell 1000® Growth Index   (reflects no deduction for fees, expenses or taxes) 0.1856 0.1532 0.1813 <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</span></div> The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. Heritage Fund Investment Objective <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund seeks long-term capital growth.</span></div> Fees and Expenses <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following table describes the fees and expenses 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 examples 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 American Century Investments funds. More information about these and other discounts is available from your financial professional and in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Calculation of Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> on page 15 of the fund’s prospectus, </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix A</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the fund’s prospectus and </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix B</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the statement of additional information.</span> 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 American Century Investments funds. 50000 Shareholder Fees (fees paid directly from your investment) 0 0 0 0.0575 0 0 0 0 0 0 0 0 0 0.0100 0 0 0 0 25 0 0 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0100 0.0080 0.0065 0.0100 0.0100 0.0100 0.0080 0.0065 0.0065 0 0 0 0.0025 0.0100 0.0050 0 0 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0100 0.0080 0.0065 0.0125 0.0200 0.0150 0.0080 0.0065 0.0065 0 0 0 0 0 0 0 0 -0.0065 0.0100 0.0080 0.0065 0.0125 0.0200 0.0150 0.0080 0.0065 0.0000 <span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:120%">Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.</span> Example The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example also assumes that the fund’s operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 102 319 553 1225 82 256 445 990 67 208 363 811 695 949 1223 1999 203 628 1079 2132 153 475 819 1789 82 256 445 990 67 208 363 811 0 0 0 0 Portfolio Turnover <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund pays transaction costs, such as commissions, 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 annual fund operating expenses or in the example, 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.</span> 0.62 Principal Investment Strategies <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers look for stocks of medium-sized companies they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that durable franchises in a growing industry can sustain above average earnings growth. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies with attractive returns on invested capital that are demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers make decisions about buying or holding the stocks of companies they believe have favorable growth prospects and selling the stocks of companies whose characteristics no longer meet their criteria. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund will usually purchase common stocks of companies that are medium-sized at the time of purchase, but it will purchase securities of smaller- and larger-sized companies as well. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Also, although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund may write covered calls on a portion of the fund’s holdings in common stock when the portfolio managers believe call premiums are attractive relative to the price of the underlying security. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund may engage in active and frequent trading of portfolio securities to achieve its principal investment strategies. This may cause higher transaction costs and may affect performance. It may also result in the realization and distribution of capital gains.</span></div> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Growth Stocks Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Mid Cap Stocks Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund invests in mid-sized and smaller companies, which may be more volatile and subject to greater risk than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Style Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Foreign Securities Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Covered Call Risk</span> – Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return. <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Price Volatility Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares may fluctuate significantly in the short term.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Market Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social </span><div style="margin-bottom:3pt;margin-top:3pt;padding-left:9pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.</span></div> <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Redemption Risk</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> –The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Principal Loss Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.</span> <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.</span></div> Fund Performance <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell Midcap</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">®</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.     </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.</span></div> The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell Midcap® Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. americancentury.com Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. Calendar Year Total Returns Highest Performance Quarter (2Q 2020): 32.32% Lowest Performance Quarter (2Q 2022): -22.31% Highest Performance Quarter 2020-06-30 0.3232 Lowest Performance Quarter 2022-06-30 -0.2231 Average Annual Total ReturnsFor the calendar year ended December 31, 2025 Investor Class Return Before Taxes 0.0661 0.0509 0.1143 1987-11-10 Return After Taxes on Distributions 0.0150 0.0269 0.0856 1987-11-10 Return After Taxes on Distributions and Sale of Fund Shares 0.0669 0.0367 0.0867 1987-11-10 I Class Return Before Taxes 0.0685 0.0531 0.1166 1997-06-16 Y Class1 Return Before Taxes 0.0699 0.0546 0.1182 2017-04-10 A Class Return Before Taxes 0.0028 0.0360 0.1050 1997-07-11 C Class2 Return Before Taxes 0.0549 0.0404 0.1049 2001-06-26 R Class Return Before Taxes 0.0611 0.0457 0.1088 2007-09-28 R5 Class3 Return Before Taxes 0.0685 0.0532 0.1166 2017-04-10 R6 Class Return Before Taxes 0.0700 0.0547 0.1182 2013-07-26 G Class Return Before Taxes 0.0769 0.0992 2022-03-01 Russell 3000® Index   (reflects no deduction for fees, expenses or taxes) (reflects no deduction for fees, expenses or taxes) 0.1715 0.1315 0.1429 Russell Midcap® Growth Index   (reflects no deduction for fees, expenses or taxes) 0.0866 0.0665 0.1249 <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The after-tax returns are shown only for Investor Class shares</span><span style="color:#0000ff;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</span></div> The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. Large Cap Equity Fund Investment Objective The fund seeks long-term capital growth. Income is a secondary objective. Fees and Expenses <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following table describes the fees and expenses 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 examples 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 American Century Investments funds. More information about these and other discounts is available from your financial professional and in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Calculation of Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> on page 14 of the fund’s prospectus, </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix A</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the fund’s prospectus and </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix B</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the statement of additional information.</span></div> 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 American Century Investments funds. 50000 Shareholder Fees (fees paid directly from your investment) 0 0 0 0.0575 0 0 0 0 0 0 0 0 0 0.0100 0 0 0 0 25 0 0 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0079 0.0059 0.0044 0.0079 0.0079 0.0079 0.0059 0.0044 0.0044 0 0 0 0.0025 0.0100 0.0050 0 0 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0079 0.0059 0.0044 0.0104 0.0179 0.0129 0.0059 0.0044 0.0044 0 0 0 0 0 0 0 0 -0.0044 0.0079 0.0059 0.0044 0.0104 0.0179 0.0129 0.0059 0.0044 0.0000 <span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:120%">Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.</span> Example The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn 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: 81 253 439 978 60 189 330 738 45 142 247 555 675 887 1117 1773 182 564 970 1906 132 410 708 1556 60 189 330 738 45 142 247 555 0 0 0 0 Portfolio Turnover <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund pays transaction costs, such as commissions, 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 annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 44% of the average value of its portfolio.</span></div> 0.44 Principal Investment Strategies <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund will generally invest in large capitalization companies it believes show business improvement using a proprietary multi-factor model that combines fundamental measures of a stock’s value and growth potential with sustainability (environmental, social, and governance) characteristics.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">To measure value, the portfolio managers may use ratios of stock price-to-earnings and stock price-to-cash flow. To measure growth, the managers may use the rate of growth of a company’s earnings and cash flow and changes in its earnings estimates. The model also considers price momentum. The team evaluates multiple sustainability characteristics utilizing internal data and research, as well as third party commercial data sources and scoring systems. To the extent such information is available and relevant for a particular company, portfolio managers will consider, among others, a company’s carbon emission profile, energy and water usage, or waste generation (environmental), a company’s employee turnover rates, digital privacy, or worker safety (social), and a company’s corporate leadership, including board chair independence and the independence of audit and compensation committees or shareholder rights such as say on pay (governance). If sustainability characteristics are unavailable or incomplete, a security may still be selected for the portfolio if the portfolio managers believe they can evaluate the security qualitatively, or if the financial metrics and/or remaining sustainability characteristics merit investment. Qualitative review of portfolio securities may include examination of registration statements and other information provided by the company as well as engagement with company management.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Each security is evaluated on a sector-specific basis, and the fund seeks to hold securities with the strongest attributes in their respective sectors. Using this process, the portfolio managers attempt to build a portfolio of stocks that provides better returns without taking on significant additional risk, and maintains a stronger sustainability profile than the S&amp;P 500</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">® </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Index.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Under normal market conditions, the fund will invest at least 80% of its net assets in equity securities of large capitalization companies. Equity securities include common stock, preferred stock, and equity-equivalent securities, such as securities convertible into common stock. For purposes of the 80% test, the fund defines large capitalization companies as those that are in the capitalization range of the S&amp;P 500® Index.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">When determining whether to sell a security, the portfolio managers consider among other things, a security’s price, whether a security’s risk parameters outweigh its return opportunities, and general market conditions.</span></div> <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Under normal market conditions, the fund will invest at least 80% of its net assets in equity securities of large capitalization companies. Equity securities include common stock, preferred stock, and equity-equivalent securities, such as securities convertible into common stock. For purposes of the 80% test, the fund defines large capitalization companies as those that are in the capitalization range of the S&amp;P 500® Index.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Style Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">If at any time the market is not favoring the fund’s investment process, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Benchmark Correlation Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund’s performance will be similar to the performance of its benchmark, the S&amp;P 500</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">®</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> Index. If the fund’s benchmark goes down, it is likely that the fund’s performance will go down</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%">.</span> <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">ESG Risk </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">– Because the fund considers environmental, social, and governance (ESG) data to evaluate a company’s sustainability characteristics in addition to fundamental financial metrics when selecting securities, its portfolio may perform differently than funds that do not consider sustainability characteristics. Sustainability considerations may prioritize long term rather than short term returns. Furthermore, when evaluating sustainability characteristics for securities, portfolio managers may rely on third party sources, which can vary in scope and methodology, and may only take into account one of many sustainability aspects of a portfolio company.</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:120%"> </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Sustainability data used by the portfolio managers often lacks standardization consistency, and also may not be available, complete or accurate.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Foreign Securities Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> –  The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Market Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.</span> <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Redemption Risk</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund's transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Principal Loss Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.</span> <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.</span></div> Fund Performance <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.</span></div> The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. americancentury.com Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. Calendar Year Total Returns <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%">Highest Performance Quarter (2Q 2020): 21.24% Lowest Performance Quarter (1Q 2020): -18.99%</span> Highest Performance Quarter 2020-06-30 0.2124 Lowest Performance Quarter 2020-03-31 -0.1899 Average Annual Total Returns For the calendar year ended December 31, 2025 Investor Class Return Before Taxes 0.1122 0.1132 0.1346 2005-07-29 Return After Taxes on Distributions 0.0621 0.0973 0.1232 2005-07-29 Return After Taxes on Distributions and Sale of Fund Shares 0.1018 0.0895 0.1113 2005-07-29 I Class Return Before Taxes 0.1146 0.1155 0.1369 2005-07-29 Y Class Return Before Taxes 0.1159 0.1171 0.1418 2017-04-10 A Class Return Before Taxes 0.0457 0.0974 0.1251 2004-11-30 C Class1 Return Before Taxes 0.1009 0.1022 0.1250 2004-11-30 R Class Return Before Taxes 0.1066 0.1077 0.1290 2005-07-29 R5 Class2 Return Before Taxes 0.1145 0.1154 0.1369 2017-04-10 R6 Class3 Return Before Taxes 0.1160 0.1170 0.1418 2019-04-01 G Class Return Before Taxes 0.1209 0.1220 0.1457 2019-04-01 S&P 500® Index   (reflects no deduction for fees, expenses or taxes) (reflects no deduction for fees, expenses or taxes) 0.1788 0.1442 0.1482 The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. Select Fund Investment Objective <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund seeks long-term capital growth.</span></div> Fees and Expenses <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following table describes the fees and expenses 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 examples 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 American Century Investments funds. More information about these and other discounts is available from your financial professional and in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Calculation of Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> on page 15 of the fund’s prospectus, </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix A</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the fund’s prospectus and </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix B</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the statement of additional information.</span> 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 American Century Investments funds. 50000 Shareholder Fees (fees paid directly from your investment) 0 0 0 0.0575 0 0 0 0 0 0 0 0 0 0.0100 0 0 0 0 25 0 0 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0098 0.0078 0.0063 0.0098 0.0098 0.0098 0.0078 0.0063 0.0063 0 0 0 0.0025 0.0100 0.0050 0 0 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0098 0.0078 0.0063 0.0123 0.0198 0.0148 0.0078 0.0063 0.0063 -0.0008 -0.0008 -0.0008 -0.0008 -0.0008 -0.0008 -0.0008 -0.0008 -0.0063 0.0090 0.0070 0.0055 0.0115 0.0190 0.0140 0.0070 0.0055 0 <span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:120%">Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.</span> February 28, 2027 Example The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example also assumes the fund’s operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 92 305 535 1194 72 242 426 959 56 194 344 779 686 936 1205 1971 193 615 1061 2104 143 461 801 1760 72 242 426 959 56 194 344 779 0 0 0 0 Portfolio Turnover <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund pays transaction costs, such as commissions, 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 annual fund operating expenses or in the example, 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.</span></div> 0.22 Principal Investment Strategies <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers look for stocks of companies they believe will increase in value over time. The portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers use a variety of analytical research tools and techniques to identify the stocks of larger-sized companies that meet their investment criteria. Under normal market conditions, the portfolio managers seek securities of companies whose earnings or revenues are not only growing, but growing at an accelerated pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. Among other variables, the portfolio managers will consider a company’s valuation and profitability. Other analytical techniques include evaluating stock price momentum, as well as identifying additional signs of business improvement, such as increasing cash flows, or other indications of the relative strength of a company’s business. In addition to accelerating growth and other signs of business improvement, the fund also considers companies demonstrating price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers make decisions about buying or holding the stocks of companies they believe have favorable growth prospects and selling the stocks of companies whose characteristics no longer meet their criteria.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund may write covered calls on a portion of the fund’s holdings in common stock when the portfolio managers believe call premiums are attractive relative to the price of the underlying security.</span></div> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Growth Stocks Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Style Risk – </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Foreign Securities Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Covered Call Risk </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">– Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Diversification Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund is classified as diversified pursuant to the Investment Company Act, with diversification measured at the time of acquisition of investments. Subsequent market fluctuations may cause the fund to exceed such diversification limits and the fund may hold a greater percentage of its assets in a smaller number of securities. To the extent this occurs, a price change in any one of those securities may have a greater impact on the fund’s share price and the fund may be more volatile.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Market Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Price Volatility Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares may fluctuate significantly in the short term.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Principal Loss Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.</span> <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.</span></div> Fund Performance <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 1000</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">® </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.</span></div> The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 1000® Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. americancentury.com Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. Calendar Year Total Returns <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%">Highest Performance Quarter (2Q 2020): 26.28% Lowest Performance Quarter (2Q 2022): -20.81%</span></div> Highest Performance Quarter 2020-06-30 0.2628 Lowest Performance Quarter 2022-06-30 -0.2081 Average Annual Total ReturnsFor the calendar year ended December 31, 2025 Investor Class Return Before Taxes 0.1627 0.1279 0.1589 1971-06-30 Return After Taxes on Distributions 0.1373 0.1094 0.1414 1971-06-30 Return After Taxes on Distributions and Sale of Fund Shares 0.1142 0.0985 0.1288 1971-06-30 I Class Return Before Taxes 0.1650 0.1302 0.1612 1997-03-13 Y Class1 Return Before Taxes 0.1668 0.1319 0.1630 2017-04-10 A Class Return Before Taxes 0.0932 0.1119 0.1492 1997-08-08 C Class2 Return Before Taxes 0.1512 0.1167 0.1491 2003-01-31 R Class Return Before Taxes 0.1570 0.1223 0.1531 2005-07-29 R5 Class3 Return Before Taxes 0.1651 0.1302 0.1612 2017-04-10 R6 Class Return Before Taxes 0.1668 0.1319 0.1630 2013-07-26 G Class Return Before Taxes 0.1732 0.2639 2023-11-02 Russell 1000® Index   (reflects no deduction for fees, expenses or taxes) (reflects no deduction for fees, expenses or taxes) 0.1737 0.1359 0.1459 Russell 1000® Growth Index   (reflects no deduction for fees, expenses or taxes) 0.1856 0.1532 0.1813 <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</span></div> The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. Small Cap Growth Fund Investment Objective <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund seeks long-term capital growth.</span></div> Fees and Expenses <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following table describes the fees and expenses 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 examples 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 American Century Investments funds. More information about these and other discounts is available from your financial professional and in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Calculation of Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> on page 15 of the fund’s prospectus, </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix A</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the fund’s prospectus and </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix B</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the statement of additional information.</span> 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 American Century Investments funds. 50000 Shareholder Fees (fees paid directly from your investment) 0 0 0 0.0575 0 0 0 0 0 0 0 0 0 0.0100 0 0 0 0 25 0 0 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0113 0.0093 0.0078 0.0113 0.0113 0.0113 0.0093 0.0078 0.0078 0 0 0 0.0025 0.0100 0.0050 0 0 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0113 0.0093 0.0078 0.0138 0.0213 0.0163 0.0093 0.0078 0.0078 0 0 0 0 0 0 0 0 -0.0078 0.0113 0.0093 0.0078 0.0138 0.0213 0.0163 0.0093 0.0078 0.0000 <span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:120%">Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.</span> Example The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, and that you earn a 5% return each year. The example also assumes that the fund’s operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 115 360 623 1374 95 297 515 1143 80 250 434 966 708 987 1288 2136 217 668 1145 2268 166 515 887 1931 95 297 515 1143 80 250 434 966 0 0 0 0 Portfolio Turnover <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund pays transaction costs, such as commissions, 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 annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 90% of the average value of its portfolio.</span> 0.90 Principal Investment Strategies <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Under normal market conditions, the fund will invest at least 80% of its net assets in small cap companies. The portfolio managers consider small cap companies to include those with a market capitalization that does not exceed that of the largest company in the Russell 2000 Growth Index. Though market capitalization will change from time to time, as of December 31, 2025, the market capitalization of the largest company in the Russell 2000 Growth Index was approximately $26.0 billion.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">           </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers look for stocks of smaller-sized companies they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings and revenues. The portfolio managers’ principal analytical technique involves the identification of companies with earnings and revenues that are not only growing, but growing at an accelerating pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. In addition to accelerating growth, the fund also may consider companies whose stocks demonstrate price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund may engage in active and frequent trading of portfolio securities to achieve its principal investment strategies. This may cause higher transaction costs and may affect performance. It may also result in the realization and distribution of capital gains.</span></div> Under normal market conditions, the fund will invest at least 80% of its net assets in small cap companies. <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Growth Stocks Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Small Cap Stocks Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The smaller companies in which the fund invests may be more volatile and subject to greater risk than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Style Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Foreign Securities Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Market Risk </span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">– The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Price Volatility Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The value of the fund’s shares may fluctuate significantly in the short term.</span> <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Redemption Risk</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund's transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Principal Loss Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.</span> An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. Fund Performance <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 2000</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">®</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.</span></div> The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 2000® Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. americancentury.com Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. Calendar Year Total Returns <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%">Highest Performance Quarter (2Q 2020): 34.92% Lowest Performance Quarter (4Q 2018): -21.25%</span> Highest Performance Quarter 2020-06-30 0.3492 Lowest Performance Quarter 2018-12-31 -0.2125 Average Annual Total ReturnsFor the calendar year ended December 31, 2025 Investor Class Return Before Taxes 0.0903 0.0295 0.1221 2001-06-01 Return After Taxes on Distributions 0.0720 0.0144 0.1039 2001-06-01 Return After Taxes on Distributions and Sale of Fund Shares 0.0666 0.0195 0.0960 2001-06-01 I Class Return Before Taxes 0.0926 0.0316 0.1243 2007-05-18 Y Class1 Return Before Taxes 0.0944 0.0331 0.1261 2017-04-10 A Class Return Before Taxes 0.0251 0.0148 0.1127 2003-01-31 C Class2 Return Before Taxes 0.0794 0.0192 0.1125 2003-01-31 R Class Return Before Taxes 0.0850 0.0244 0.1165 2007-09-28 R5 Class3 Return Before Taxes 0.0925 0.0316 0.1244 2017-04-10 R6 Class Return Before Taxes 0.0940 0.0331 0.1260 2013-07-26 G Class Return Before Taxes 0.1023 0.0414 0.1206 2019-04-01 Russell 3000® Index   (reflects no deduction for fees, expenses or taxes) (reflects no deduction for fees, expenses or taxes) 0.1715 0.1315 0.1429 Russell 2000® Growth Index   (reflects no deduction for fees, expenses or taxes) 0.1301 0.0318 0.0957 The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. Ultra® Fund Investment Objective The fund seeks long-term capital growth. Fees and Expenses <div style="margin-bottom:3pt;margin-top:3pt"><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following table describes the fees and expenses 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 examples 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 American Century Investments funds. More information about these and other discounts is available from your financial professional and in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Calculation of Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> on page 14 of the fund’s prospectus, </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix A</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the fund’s prospectus and </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Sales Charges</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> in </span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Appendix B</span><span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> of the statement of additional information.</span></div> 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 American Century Investments funds. 50000 Shareholder Fees (fees paid directly from your investment) 0 0 0 0.0575 0 0 0 0 0 0 0 0 0 0.0100 0 0 0 0 25 0 0 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0089 0.0069 0.0054 0.0089 0.0089 0.0089 0.0069 0.0054 0.0054 0 0 0 0.0025 0.0100 0.0050 0 0 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0089 0.0069 0.0054 0.0114 0.0189 0.0139 0.0069 0.0054 0.0054 -0.0002 -0.0002 -0.0002 -0.0002 -0.0002 -0.0002 -0.0002 -0.0002 -0.0054 0.0087 0.0067 0.0052 0.0112 0.0187 0.0137 0.0067 0.0052 0.0000 <span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:120%">Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.</span> February 28, 2027 Example The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example also assumes that the fund’s operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 89 282 492 1094 69 219 383 857 53 171 300 676 683 915 1165 1879 190 593 1020 2013 140 439 759 1666 69 219 383 857 53 171 300 676 0 0 0 0 Portfolio Turnover <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund pays transaction costs, such as commissions, 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 annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 15% of the average value of its portfolio.</span> 0.15 Principal Investment Strategies <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers look for stocks of companies they believe will increase in value over time. The portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The portfolio managers use a variety of analytical research tools and techniques to identify the stocks of larger-sized companies that meet their investment criteria. Under normal market conditions, the portfolio managers seek securities of companies whose earnings or revenues are not only growing, but growing at an accelerated pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. Among other variables, the portfolio managers will consider the fund’s growth and momentum profile relative to the benchmark. Other analytical techniques help identify additional signs of business improvement, such as increasing cash flows, or other indications of the relative strength of a company’s business. In addition to accelerating growth and other signs of business improvement, the fund also considers companies demonstrating price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers make decisions about buying or holding the stocks of companies they believe have favorable growth prospects and selling the stocks of companies whose characteristics no longer meet their criteria. </span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection.</span></div><div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The fund may write covered calls on a portion of the fund’s holdings in common stock when the portfolio managers believe call premiums are attractive relative to the price of the underlying security.</span></div> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Growth Stocks Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Style Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Market Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Price Volatility Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The value of the fund’s shares may fluctuate significantly in the short term.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Foreign Securities Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Diversification Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">  — The fund is classified as diversified pursuant to the Investment Company Act, with diversification measured at the time of acquisition of investments. Subsequent market fluctuations may cause the fund to exceed such diversification limits and the fund may hold a greater percentage of its assets in a smaller number of securities. To the extent this occurs, a price change in any one of those securities may have a greater impact on the fund’s share price and the fund may be more volatile.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Covered Call Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.</span> <span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.5pt">Principal Loss Risk</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> — At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.</span> An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. Fund Performance <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 1000</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">®</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"> Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.</span></div>Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The table also shows returns for the Russell 1000® Growth Index, which the advisor considers to be more representative of the fund’s investment strategy. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. americancentury.com Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown. Calendar Year Total Returns <span style="-sec-ix-redline:true;color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%">Highest Performance Quarter (2Q 2020): 32.22% Lowest Performance Quarter (2Q 2022): -23.70%</span> Highest Performance Quarter 2020-06-30 0.3222 Lowest Performance Quarter 2022-06-30 -0.2370 Average Annual Total ReturnsFor the calendar year ended December 31, 2025 Investor Class Return Before Taxes 0.1262 0.1171 0.1713 1981-11-02 Return After Taxes on Distributions 0.0982 0.0997 0.1553 1981-11-02 Return After Taxes on Distributions and Sale of Fund Shares 0.0944 0.0902 0.1409 1981-11-02 I Class Return Before Taxes 0.1285 0.1193 0.1737 1996-11-14 Y Class1 Return Before Taxes 0.1301 0.1210 0.1754 2017-04-10 A Class Return Before Taxes 0.0588 0.1012 0.1615 1996-10-02 C Class2 Return Before Taxes 0.1150 0.1060 0.1614 2001-10-29 R Class Return Before Taxes 0.1207 0.1116 0.1655 2003-08-29 R5 Class3 Return Before Taxes 0.1285 0.1194 0.1737 2017-04-10 R6 Class Return Before Taxes 0.1301 0.1210 0.1754 2013-07-26 G Class Return Before Taxes 0.1363 0.1274 0.1899 2019-08-01 Russell 1000® Index (reflects no deduction for fees, expenses or taxes) (reflects no deduction for fees, expenses or taxes) 0.1737 0.1359 0.1459 Russell 1000® Growth Index   (reflects no deduction for fees, expenses or taxes) 0.1856 0.1532 0.1813 <div style="margin-bottom:3pt;margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.</span></div> The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest 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. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs. Historical performance for the R5 Class prior to its inception (April 10, 2017) is based on the performance of I Class shares, which have the same expenses as the R5 Class. Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase. The advisor has agreed to waive a portion of the fund’s management fee such that the management fee does not exceed 0.832% for Investor, A, C and R Classes, 0.632% for I and R5 Classes, and 0.482% for Y and R6 Classes. The advisor expects this waiver arrangement to continue until February 28, 2027 and cannot terminate it prior to such date without the approval of the Board of Directors. The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this fee waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Directors. Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date. C Class shares automatically convert to A Class shares after approximately eight years. All returns for periods greater than eight years reflect this conversion. Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class shares. Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase. The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this fee waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Directors. Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date. C Class shares automatically convert to A Class shares after approximately eight years. All returns for periods greater than eight years reflect this conversion. Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class. Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase. The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Directors. C Class shares automatically convert to A Class shares after approximately eight years. All returns for periods greater than eight years reflect this conversion. Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class shares. Historical performance for the R6 Class prior to its inception is based on the performance of Y Class shares, which have the same expenses as the R6 Class shares. Since inception performance for the R6 Class is based on the Y Class inception date. Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase. The advisor has agreed to waive a portion of the fund’s management fee such that the management fee does not exceed 0.900% for Investor, A, C and R Classes, 0.700% for I and R5 Classes, and 0.550% for Y and R6 Classes. The advisor expects this waiver arrangement to continue until February 28, 2027 and cannot terminate it prior to such date without the approval of the Board of Directors. The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this fee waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Directors. Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date. C Class shares automatically convert to A Class shares after approximately eight years. All returns for periods greater than eight years reflect this conversion. Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class shares. Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase. The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Directors. Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date. C Class shares automatically convert to A Class shares after approximately eight years. All returns for periods greater than eight years reflect this conversion. Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 class. Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase. The advisor has agreed to waive a portion of the fund’s management fee such that the management fee does not exceed 0.865% for Investor, A, C and R Classes, 0.665% for I and R5 Classes, and 0.515% for Y and R6 Classes. The advisor expects this waiver arrangement to continue until February 28, 2027 and cannot terminate it prior to such date without the approval of the Board of Directors. The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Directors. Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date. C Class shares automatically convert to A Class shares after approximately eight years. All returns for periods greater than eight years reflect this conversion. Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class shares