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You may pay other fees, such as brokerage commissions, to financial intermediaries, which are not reflected in the table and example below. If such expenses were reflected, the expenses set forth below would be higher. </div> Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0033 0.0000 0.0000 0.0033 Example <div style="margin-top:6pt;">The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated (whether or not shares are redeemed), and assumes that: </div><div> <div style="clear:both;margin-top:4.00pt;position:relative;width:100%;"> <div style="float:left;line-height:10pt;margin-left:6pt;text-align:left;width:4.45pt;">■</div> <div style="float:left;line-height:12pt;margin-left:6.55pt;text-align:left;width:494.00pt;">you invest $10,000 in the Fund for the periods indicated, </div> </div> <div style="clear:both;position:relative;"> </div> </div><div> <div style="clear:both;margin-top:4.00pt;position:relative;width:100%;"> <div style="float:left;line-height:10pt;margin-left:6pt;text-align:left;width:4.45pt;">■</div> <div style="float:left;line-height:12pt;margin-left:6.55pt;text-align:left;width:494.00pt;">your investment has a 5% return each year, and </div> </div> <div style="clear:both;position:relative;"> </div> </div><div> <div style="clear:both;margin-top:4.00pt;position:relative;width:100%;"> <div style="float:left;line-height:10pt;margin-left:6pt;text-align:left;width:4.45pt;">■</div> <div style="float:left;line-height:12pt;margin-left:6.55pt;text-align:left;width:494.00pt;">the Fund’s total annual operating expenses remain the same as shown in the Annual Fund Operating Expenses table above.</div> </div> <div style="clear:both;position:relative;"> </div> </div><div style="margin-top:6pt;">Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: </div> 34 34 106 106 185 185 418 418 Portfolio Turnover <div style="margin-top:4pt;">The Fund may pay 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 30% of the average value of its portfolio.</div> 0.30 Principal Investment Strategies <div style="margin-top:4pt;">The Fund is an exchange-traded fund (ETF) that seeks to replicate the performance of the Beta Advantage® Research Enhanced REIT Index (the Index). Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in the component securities of the Index. The Index reflects a rules-based strategic beta approach to investing in the companies that comprise the FTSE Nareit All Equity REITs Index (the Starting Universe), which is a broad measure of the performance of publicly listed U.S. real estate investment trusts (REITs). The Index is comprised of a subset of the companies within the Starting Universe selected based on a proprietary scoring system that takes into account multiple quantitative factors, including quality, value and company catalyst factors. Like the Starting Universe, the Index and the Fund typically hold only common stocks. The Fund may invest in companies of any size, including small- and mid-cap companies. </div><div style="margin-top:4pt;">The Index was developed by the Fund’s investment adviser, Columbia Management Investment Advisers, LLC (Columbia Management or the Investment Manager). The Index is sponsored and administered by Columbia Management, and is calculated by Solactive AG (the Index Calculation Agent). </div><div style="margin-top:4pt;">The Fund uses a replication strategy to track the performance of the Index, whereby the Fund invests in or has investment exposure to substantially all the component securities of the Index in approximately the same proportions as in the Index. However, under various circumstances, including circumstances under which it may not be possible or practicable to purchase all of the securities in the Index, or in the same weightings, the Fund may purchase or have investment exposure to a sample of the securities in the Index in proportions expected to replicate generally the performance of the Index as a whole. There may also be instances in which the Fund may overweight (or underweight) an Index holding, purchase (or sell) instruments not in the Index as a substitute for one or more securities in the Index or utilize various combinations of other available investment techniques in seeking to replicate the performance of the Index. </div><div style="margin-top:4pt;">The Fund may sell securities or other holdings that are represented in the Index or purchase securities or make other investments that are not yet represented in the Index in anticipation of their removal from or addition to the Index. </div><div style="margin-top:4pt;">The Investment Manager does not provide day-to-day management of the Fund’s assets based on its view of the investment merits of a security, nor do they conduct fundamental investment research or analysis, or seek to forecast or otherwise consider market movements, conditions or trends in the day-to-day management of the Fund’s assets. The Fund pursues its investment objective of correlating performance with the Index regardless of market conditions and does not take defensive positions. </div><div style="margin-top:4pt;">The methodology applied to select Index holdings and weightings does not set limits on sector or industry exposures. To the extent the Index is concentrated in a sector or industry, the Fund will be concentrated in that sector or industry. The Index (and therefore the Fund) will concentrate in the real estate industry. </div><div style="margin-top:4pt;">The Fund may invest up to 20% of its assets in other securities or instruments not included within the Index that the Investment Manager believes will help the Fund replicate the performance of the Index.</div><div style="margin-top:4pt;">The Fund is non-diversified, which means that it can invest a greater percentage of its assets in the securities of fewer issuers than can a diversified fund.</div> There is no assurance that the Fund will achieve its investment objective and you may lose money. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. <div style="line-height:12.0pt;text-align:left;">Authorized Participant Concentration Risk. Only an Authorized Participant (as defined below) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as Authorized Participants, none of which are or will be obligated to engage in creation or redemption transactions. To the extent that these institutions exit the business or are unable or unwilling to proceed with creation and/or redemption orders with respect to the Fund and no other Authorized Participant is able or willing to step forward to create or redeem Creation Units, Fund shares may trade at a greater premium or discount between the market price and the NAV of the Fund’s shares and/or wider bid-ask spreads than those experienced by other ETFs. Additionally, the Fund could possibly face trading halts and/or delisting from the Exchange. This risk is heightened in times of market stress, including at both the Fund share level and at the Fund holdings level.</div> <div style="margin-top:4pt;">Changing Distribution Level Risk. The Fund normally expects to receive income which may include interest, dividends and/or capital gains, depending upon its investments. The distribution amounts paid by the Fund will vary and generally depend on the amount of income the Fund earns (less expenses) on its portfolio holdings, and capital gains or losses it recognizes. A decline in the Fund’s income or net capital gains arising from its investments may reduce its distribution level.</div> <div style="margin-top:4pt;">Correlation/Tracking Error Risk. The Fund’s value will generally decline when the performance of the securities within the Index declines. A number of factors may affect the Fund’s ability to achieve a high degree of correlation with the Index, and there is no guarantee that the Fund will achieve a high degree of correlation. Failure to achieve a high degree of correlation may prevent the Fund from achieving its investment objective. In addition, the Fund bears management and other expenses and transaction costs in trading securities or other instruments, which the Index does not bear. The Fund, unlike the Index, is subject to regulatory requirements that can limit the Fund’s investments relative to what the Index can hold. Accordingly, the Fund's performance will likely fail to match the performance of the Index, after taking expenses into account, as well as regulatory limitations. It is not possible to invest directly in an index.</div> <div style="margin-top:4pt;">Early/Late Close/Trading Halt Risk. An exchange or market may close early, close late or issue trading halts on specific securities, or the ability to buy or sell certain securities may be restricted, which may result in the Fund being unable to buy or sell these securities.</div> <div style="margin-top:4pt;">Equity Securities Risk. Equity securities may experience significant volatility. Such securities may fall sharply in response to adverse events affecting overall markets, a particular industry or sector, or an individual company’s financial condition.</div> <div style="margin-top:4pt;">Fund Shares Liquidity Risk. Although the Fund’s shares are listed on the Exchange, there can be no assurance that an active, liquid or otherwise orderly trading market for shares will be established or maintained by market makers or Authorized Participants, particularly in times of stressed market conditions. There is no guarantee that the Fund will be able to attract market makers and Authorized Participants. There is no obligation for market makers to make a market in the Fund’s shares or for Authorized Participants to submit purchase or redemption orders for creation units. Accordingly, if such parties determine not to perform their respective functions, this could, such as during times of market stress, in turn, lead to variances between the market price of the Fund’s shares and the underlying value of those shares and bid/ask spreads could widen. Trading in Fund shares on the Exchange also may be disrupted or even halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Fund shares inadvisable. In addition, trading in Fund shares on the Exchange may be subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There also can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund’s shares will continue to be met or will remain unchanged.</div> <div style="margin-top:4pt;">Index Methodology and Provider Risk. The Fund seeks performance that corresponds to the performance of the Index. There is no guarantee or assurance that the Index will achieve high, or even positive, returns. The Index may underperform more traditional indices. In turn, the Fund could lose value while other indices or measures of market performance increase in value or performance. In addition, the Fund may be subject to the risk of errors in Index computation, construction and reconstitution, despite any of the procedures designed to prevent such occurrences and due diligence conducted by the index provider. Errors may result in a negative performance impact to the Fund and its shareholders. The Index is owned and was developed by the Investment Manager.</div> <div style="line-height:12.0pt;text-align:left;">Issuer Risk. An issuer in which the Fund invests or to which it has exposure may perform poorly or below expectations, and the value of its securities may therefore decline, which may negatively affect the Fund’s performance. Underperformance of an issuer may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters, military confrontations and actions, war, other conflicts, terrorism, disease/virus outbreaks, epidemics or other events, conditions and factors which may impair the value of your investment in the Fund and could result in a greater premium or discount between the market price and the NAV of the Fund's shares and/or wider bid/ask spreads than those experienced by other ETFs.</div><div> <div style="clear:both;margin-top:4pt;position:relative;width:100%;"> <div style="float:left;line-height:10pt;text-align:left;width:4.45pt;">■</div> <div style="float:left;line-height:12pt;margin-left:6.55pt;text-align:left;width:500.00pt;">Small- and Mid-Cap Stock Risk. Investments in small- and mid-capitalization companies (small- and mid-cap companies) often involve greater risks than investments in larger, more established companies (larger companies) because small- and mid-cap companies tend to have less predictable earnings and may lack the management experience, financial resources, product diversification and competitive strengths of larger companies. Securities of small- and mid-cap companies may be less liquid and more volatile than the securities of larger companies.</div> </div> <div style="clear:both;position:relative;"> </div> </div> <div style="margin-top:4pt;">Market Price Relative to NAV Risk. Shares of the Fund may trade at prices that vary from Fund NAV. Shares of the Fund are listed for trading on the Exchange and are bought and sold in the secondary market at market prices that may differ, in some cases significantly, from their NAV. The NAV of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares, however, will generally fluctuate in response to changes in NAV, as well as the relative supply of, and demand for, Fund shares on the Exchange. Fund shares may trade at a greater premium or discount between the market price and the NAV of the Fund's shares and/or wider bid/ask spreads than those experienced by other ETFs. The Investment Manager cannot predict whether Fund shares will trade below, at or above their NAV. Price differences may result because of, among other factors, supply and demand forces in the secondary trading market for Fund shares. It is expected that these forces generally will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings. In this regard, if a shareholder purchases Fund shares at a time when the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses. Different investment strategies or techniques, including those intended to be defensive in nature, including, as examples, stop loss orders to sell an ETF’s shares in the secondary market during negative market events or conditions, such as a “flash crash” or other market disruptions, may not work as intended and may produce significant losses to investors. Investors should consult their financial intermediary prior to using any such investment strategies or techniques, or before investing in the Fund.</div> <div style="margin-top:4pt;">Market Risk. The Fund may incur losses due to declines in the value of one or more securities in which it invests. These declines may be due to factors affecting a particular issuer, or the result of, among other things, political, regulatory, market, economic or social developments affecting the relevant market(s) more generally. In addition, turbulence in financial markets and reduced liquidity in equity, credit and/or fixed income markets may negatively affect many issuers, which could adversely affect the Fund’s ability to price or value hard-to-value assets in thinly traded and closed markets and could cause significant redemptions and operational challenges. Global economies and financial markets are increasingly interconnected, and conditions and events in one country, region or financial market may adversely impact issuers in a different country, region or financial market. These risks may be magnified if certain events or developments adversely interrupt the global supply chain; in these and other circumstances, such risks might affect companies worldwide. As a result, local, regional or global events such as terrorism, war, other conflicts, natural disasters, disease/virus outbreaks and epidemics or other public health issues, recessions, depressions or other events – or the potential for such events – could have a significant negative impact on global economic and market conditions and could result in a greater premium or discount between the market price and the NAV of the Fund's shares and/or wider bid/ask spreads than those experienced by other ETFs.</div> <div style="margin-top:4pt;">Non-Diversified Fund Risk. The Fund is non-diversified, which generally means that it may invest a greater percentage of its total assets in the securities of fewer issuers than a “diversified” fund. This increases the risk that a change in the value of any one investment held by the Fund could affect the overall value of the Fund more than it would affect that of a diversified fund holding a greater number of investments. Accordingly, the Fund's value will likely be more volatile than the value of a more diversified fund.</div> <div style="line-height:12.0pt;text-align:left;">Passive Investment Risk. The Fund is not actively managed and may be affected by a general decline in market segments related to its Index’s investment exposures. The Fund invests in securities or instruments included in, or believed by the portfolio managers to be representative of, the Index regardless of their investment merits. The Fund does not seek temporary defensive positions when markets decline or appear overvalued.</div> <div style="margin-top:4pt;">Quantitative Models Risk. Quantitative models used by the Index may not be effective in selecting the most favorable securities for inclusion in the Index and may cause the Fund to underperform other investment strategies. Flaws or errors in the quantitative model’s assumptions, design, execution, or data inputs may adversely affect Fund performance. Quantitative models may not perform as expected and may underperform in certain market environments including in stressed or volatile market conditions. There can be no assurance that the use of quantitative models will enable the Fund to achieve its objective.</div> <div style="margin-top:4pt;">Real Estate-Related Investment Risk. Investments in real estate investment trusts (REITs) subject the Fund to, among other things, risks similar to those of direct investments in real estate and the real estate industry in general. These include risks related to general and local economic conditions, possible lack of availability of financing and changes in interest rates or property values. The value of interests in a REIT may be affected by, among other factors, changes in the value of the underlying properties owned by the REIT, changes in the prospect for earnings and/or cash flow growth of the REIT itself, defaults by borrowers or tenants, market saturation, decreases in market rates for rents, and other economic, political, or regulatory matters affecting the real estate industry, including REITs. REITs may be subject to more abrupt or erratic price movements than the overall securities markets. In a rising interest rate environment, the stock prices of real estate-related investments may decline and the borrowing costs of these companies may increase. REITs are also subject to the risk of failing to qualify for favorable tax treatment under the Internal Revenue Code of 1986, as amended. The failure of a REIT to continue to qualify as a REIT for tax purposes can materially and adversely affect its value. Some REITs (especially mortgage REITs) are affected by risks similar to those associated with investments in debt securities including changes in interest rates and the quality of credit extended. Because the value of REITs and other real estate-related companies may fluctuate widely in response to changes in factors affecting the real estate markets, the value of an investment in the Fund may be more volatile than the value of an investment in a fund that is invested in a more diverse range of market sectors.</div> <div style="margin-top:4pt;">Secondary Market Trading Risk. Investors buying or selling Fund shares will pay brokerage commissions or other charges imposed by brokers as determined by that broker. Brokerage commissions are often a fixed amount and may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Fund shares.</div> Performance Information <div style="margin-top:4pt;">The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund’s performance has varied for each full calendar year shown. The table below the bar chart compares the Fund’s returns for the periods shown with the index the Fund seeks to track, which provides a broad measure of market performance, as well as two additional measures of performance for markets in which the Fund may invest.</div><div style="margin-top:4pt;">Effective March 31, 2025, the name of the Fund's tracked index, Beta Advantage® Lionstone Research Enhanced REIT Index (the Index's Former Name), changed to Beta Advantage® Research Enhanced REIT Index (the Index's New Name).</div><div style="margin-top:4pt;">The after-tax returns shown in the Average Annual Total Returns table below are calculated using the highest historical individual U.S. federal marginal income tax rates in effect during the period indicated in the table and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-advantaged accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.</div><div style="line-height:12.0pt;text-align:left;">The Fund’s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future. Updated performance information can be obtained by calling toll-free 800.426.3750 or visiting columbiathreadneedleus.com/etfs. </div> The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund’s performance has varied for each full calendar year shown. The table below the bar chart compares the Fund’s returns for the periods shown with the index the Fund seeks to track, which provides a broad measure of market performance, as well as two additional measures of performance for markets in which the Fund may invest. Effective March 31, 2025, the name of the Fund's tracked index, Beta Advantage® Lionstone Research Enhanced REIT Index (the Index's Former Name), changed to Beta Advantage® Research Enhanced REIT Index (the Index's New Name). The after-tax returns shown in the Average Annual Total Returns table below are calculated using the highest historical individual U.S. federal marginal income tax rates in effect during the period indicated in the table and do not reflect the impact of state, local or foreign taxes. In addition, the after-tax returns shown in the table do not apply to shares held in tax-advantaged accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares. The Fund’s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future. 800.426.3750 columbiathreadneedleus.com/etfs Year by Year Total Return (%) as of December 31 Each Year Best 2024-09-30 0.1684 Worst 2024-12-31 -0.0732 Average Annual Total Returns (for periods ended December 31, 2025) 2023-04-26 -0.0245 0.0543 -0.0398 0.0379 -0.0089 0.0372 -0.0212 0.0582 0.0227 0.0701 0.1715 0.2251 Pursuant to the Investment Management Services Agreement with Columbia ETF Trust I on behalf of the Fund, Columbia Management Investment Advisers, LLC pays the operating costs and expenses of the Fund, but not taxes, interest, brokerage expenses, portfolio transaction expenses, and infrequent and/or unusual expenses.