497K

Investment Objective

Columbia Research Enhanced Emerging Economies ETF (the Fund) seeks investment results that, before fees and expenses, closely correspond to the performance of the Beta Advantage® Research Enhanced Solactive Emerging Economies Index (the Index).

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions, 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.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Management fees	0.49 %
Distribution and/or service (12b-1) fees	0.00 %
Other expenses	0.00 %
Total annual Fund operating expenses	0.49 %
Less: Fee waivers and/or expense reimbursements(a)	(0.02 %)
Total annual Fund operating expenses after fee waivers and/or expense reimbursements	0.47 %

(a)

Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding interest (but not Fund overdraft charges), brokerage commissions, and infrequent and/or unusual expenses) through July 31, 2027, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses, subject to applicable exclusions, will not exceed the annual rate of 0.47%.

Example

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:

■

you invest $10,000 in the Fund for the periods indicated,

■

your investment has a 5% return each year, and

■

the Fund’s total annual operating expenses remain the same as shown in the Annual Fund Operating Expenses table above.

Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire as indicated in the preceding table, they are only reflected in the 1 year example and the first year of the other examples. Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be:

	1 year	3 years	5 years	10 years
	$48	$155	$272	$614

Portfolio Turnover

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 39% of the average value of its portfolio.

Principal Investment Strategies

The Fund is an exchange-traded fund (ETF) that seeks to track the performance of 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 equity securities (including, but not limited to, common shares traded on local exchanges, American Depositary Receipts (ADRs) and Global Depositary Receipts (GDRs)) of companies located in emerging market countries. “Emerging market” countries are those included in the Solactive GBS Emerging Markets Large & Mid Cap USD Index. The Index reflects a rules-based strategic beta approach to investing in the companies that comprise the Solactive GBS Emerging Markets Large & Mid Cap USD Index (also referred to as the Starting Universe), with the

Columbia Research Enhanced Emerging Economies ETF

Index designed to seek to achieve stronger total return when compared with the Starting Universe, which is a broad measure of the performance of emerging markets large- and mid-cap growth and value companies. The Index, like the Starting Universe, and therefore the Fund, typically holds only common stocks and depositary receipts.

The Index was designed by the Fund’s investment adviser, Columbia Management Investment Advisers, LLC (Columbia Management or the Investment Manager). The Index is owned and calculated by Solactive AG. "Solactive" is a trademark of Solactive AG.

The Index is comprised of a subset of the companies within the Solactive GBS Emerging Markets Large & Mid Cap USD Index. With a starting point of the Solactive GBS Emerging Markets Large & Mid Cap USD Index, the Index was designed to reflect the performance of emerging markets large- and mid-cap growth and value companies through the application of a rules-based methodology that takes into account company quality, value, and catalyst (e.g., price momentum and business momentum) factors. The Index construction methodology typically results in approximately 325-400 Index holdings, but this range can fluctuate because the Index has no constraints on number of holdings.

The Fund typically utilizes a “representative sampling” strategy whereby the Fund invests in some, but not all, of the component securities of the Index. As such, the Fund may not track the Index with the same degree of accuracy as would an investment vehicle replicating (or investing in) the entire Index. Under certain circumstances or conditions or due to other factors, including, for example, the size of the Fund’s portfolio, the Fund may use a full replication strategy, which means that the Fund will seek to track the performance of the Index by investing all, or substantially all, of its assets in the securities that make up the Index in approximately the same proportion as their weighting in the Index.

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.

The Fund is passively managed and thus Columbia Management does not provide day-to-day active management of the Fund’s assets based on its view of the investment merits of a security or company, nor does it 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.

In connection with its representative sampling approach, the Fund seeks to invest in specific countries or geographic regions, including the Greater China region and India, to approximately the same extent as the Index. The Fund may seek investment exposure to Chinese companies operating in certain sectors using a structure known as a variable interest entity (a VIE), rather than an equity ownership in the Chinese company. The Fund concentrates its investments (i.e., holds 25% or more of its net assets) in a particular industry or group of industries to approximately the same extent that the Index is concentrated. As of March 31, 2026, the Index (and therefore the Fund) was concentrated in the financials and information technology sectors.

The Index is reconstituted semi-annually in May and November.

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 track the Index.

Principal Risks

An investment in the Fund involves risks, including Emerging Market Securities Risk, Foreign Securities Risk, Geographic Focus Risk, Sector Risk, Market Risk, Passive Investment Risk, and Correlation/Tracking Error Risk, among others. Descriptions of these and other principal risks of investing in the Fund are provided below. There is no assurance that the Fund will achieve its investment objective and you may lose money. The value of the Fund’s holdings may decline, and the Fund’s net asset value (NAV) and share price may go down. 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. The significance of any specific risk to an investment in the Fund will vary over time depending on the composition of the Fund's portfolio, market conditions, and other factors. You should read all of the risk information below carefully, because any one or more of these risks may result in losses to the Fund.

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

Columbia Research Enhanced Emerging Economies ETF

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.

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.

Depositary Receipts Risk. Depositary receipts are receipts issued by a bank or trust company reflecting ownership of underlying securities issued by foreign companies. Some foreign securities are traded in the form of American Depositary Receipts and/or Global Depositary Receipts. Depositary receipts involve risks similar to the risks associated with investments in foreign securities, including those associated with an issuer’s (and any of its related companies’) country of organization and places of business operations, which may be related to the particular political, regulatory, economic, social and other conditions or events (including, for example, military confrontations and actions, war, other conflicts, terrorism and disease/virus outbreaks and epidemics) occurring in the country and fluctuations in such country’s currency, as well as market risk tied to the underlying foreign company. In addition, holders of depositary receipts may have limited voting rights, may not have the same rights afforded to stockholders of a typical domestic company in the event of a corporate action, such as an acquisition, merger or rights offering, and may experience difficulty in receiving company stockholder communications. There is no guarantee that a financial institution will continue to sponsor a depositary receipt, or that a depositary receipt will continue to trade on an exchange, either of which could adversely affect the liquidity, availability and pricing of the depositary receipt. Changes in foreign currency exchange rates will affect the value of depositary receipts and, therefore, may affect the value of your investment in the Fund. To the extent that the exchange price of a depositary receipt differs from the local price of the underlying security used by the Index, the Fund may be prevented from fully achieving its investment objective of tracking the performance of the Index.

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. In these circumstances, the Fund may be unable to rebalance and reconstitute its portfolio, may be unable to accurately price its investments, may incur substantial trading losses and/or may be prevented from sufficiently tracking the performance of the Index.

Emerging Market Securities Risk. Securities issued by foreign governments or companies in emerging market countries are more likely to have greater exposure to the risks of investing in foreign securities that are described in Foreign Securities Risk. In addition, emerging market countries are more likely to experience instability resulting, for example, from rapid changes or developments in social, political, economic or other conditions. Their economies are usually less mature and their securities markets are typically less developed with more limited trading activity (i.e., lower trading volumes and less liquidity) than more developed countries. Emerging market securities tend to be more volatile, and may be more susceptible to market manipulation, than securities in more developed markets. Many emerging market countries are heavily dependent on international trade and have fewer trading partners, which makes them more sensitive to world commodity prices and economic downturns in other countries, and some have a higher risk of currency devaluations. Due to the differences in the nature and quality of financial information of issuers of emerging market securities, including auditing and financial reporting standards, financial information and disclosures about such issuers may be unavailable or, if made available, may be considerably less reliable than publicly available information about other foreign securities.

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.

Foreign Currency Risk. The performance of the Fund may be materially affected positively or negatively by foreign currency strength or weakness relative to the U.S. dollar, particularly if the Fund invests a significant percentage of its assets in foreign securities or other assets denominated in currencies other than the U.S. dollar.

Foreign Securities Risk. Investments in or exposure to securities of foreign companies may involve heightened risks relative to investments in or exposure to securities of U.S. companies. Investing in securities of foreign companies subjects the Fund to the risks associated with an issuer’s (and any of its related companies’) country of organization and places of business operations, including risks related to political, regulatory, economic, social, diplomatic and

Columbia Research Enhanced Emerging Economies ETF

other conditions or events (including, for example, military confrontations and actions, war, other conflicts, terrorism and disease/virus outbreaks and epidemics) occurring in the country or region, as well as risks associated with less developed custody and settlement practices. Foreign securities may be more volatile and less liquid than securities of U.S. companies and are subject to the risks associated with potential imposition of economic and other sanctions against a particular foreign country, its nationals or industries or businesses within the country. In addition, foreign governments may impose withholding or other taxes on the Fund’s income, capital gains or proceeds from the disposition of foreign securities, which could reduce the Fund’s return on such securities. Additionally, the Fund’s foreign investments may trade in markets that may not be open on the same day or at the same time as the Fund, or foreign markets may close after the Fund has calculated its NAV for a given business day, which may cause a difference in the market price of such foreign securities and the value attributed to such securities by the Fund which in turn may 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.

Geographic Focus Risk. The Fund may be particularly susceptible to risks related to economic, political, regulatory or other events or conditions affecting issuers and countries within the specific geographic regions in which the Fund invests. The Fund’s NAV may be more volatile than the NAV of a more geographically diversified fund.

■

Greater China. The Greater China region consists of Hong Kong, The People's Republic of China and Taiwan, among other countries, and the Fund's investments in the region are particularly susceptible to risks in that region. These economies can be significantly affected by currency fluctuations and increasing competition from other emerging economies. Adverse events in the region will generally have a greater effect on the Fund than if the Fund were more geographically diversified, which could result in greater volatility in the Fund’s NAV and losses. Markets in the Greater China region can experience significant volatility due to social, economic, regulatory and political uncertainties. Many Chinese companies to which the Fund seeks investment exposure use a structure known as a variable interest entity (a VIE) to address Chinese restrictions on direct foreign investment in Chinese companies operating in certain sectors. The Fund’s investment exposure to VIEs may pose additional risks because the Fund’s investment is in a holding company domiciled outside of China (a Holding Company) whose interests in the business of the underlying Chinese operating company (the VIE) are established through contracts rather than equity ownership. The VIE structure is a longstanding practice in China that, until recently, was not acknowledged by the Chinese government, creating uncertainty over the possibility that the Chinese government might cease to tolerate VIE structures at any time or impose new restrictions on the structure. In such a scenario, the Chinese operating company could be subject to penalties, including revocation of its business and operating license, or the Holding Company could forfeit its interest in the business of the Chinese operating company. Further, in case of a dispute, the remedies and rights of the Fund may be limited, and legal uncertainty may be exploited against the interests of the Fund. Control over a VIE may also be jeopardized if a natural person who holds the equity interest in the VIE breaches the terms of the contractual arrangements, is subject to legal proceedings, or if any physical instruments or property of the VIE, such as seals, business registration certificates, financial data and licensing arrangements (sometimes referred to as “chops”), are used without authorization. In the event of such an occurrence, the Fund, as a foreign investor, may have little or no legal recourse. In addition to the risk of government intervention, investments through a VIE structure are subject to the risk that the China-based company (or its officers, directors, or Chinese equity owners) may breach the contractual arrangements, that Chinese law changes in a way that adversely affects the enforceability of the arrangements, or that the contracts are otherwise not enforceable under Chinese law. In any of these cases, a Fund may suffer significant losses on its investments through a VIE structure with little or no recourse available. Further, the Fund is not a VIE owner/shareholder and cannot exert influence through proxy voting or other means. Foreign companies listed on stock exchanges in the United States, including companies using the VIE structure, could also face delisting or other ramifications for failure to meet the expectations and/or requirements of U.S. regulators. China has taken steps towards adopting a regulatory framework governing overseas listings by companies that utilize VIE structures. In 2023, the China Securities Regulatory Commission (CSRC) released new rules that permit the use of VIE structures, provided they abide by Chinese laws and register with the CSRC. While this framework may provide a pathway for VIE-structured companies to continue accessing overseas capital markets, uncertainty remains regarding the interpretation, implementation and enforceability of VIE arrangements under Chinese law. Any of these risks could reduce the liquidity and value of the Fund’s investments in Holding Companies or render them valueless.

■

India. The Fund is particularly susceptible to risks related to economic, political, regulatory or other events or conditions affecting issuers in India. Because the Fund invests predominantly in Indian securities, its NAV will be much more sensitive to changes in economic, political and other factors within India than would a fund that invested in a variety of countries. Special risks include, among others, political and legal uncertainty, persistent religious, ethnic and border disputes, greater government control over the economy, currency fluctuations or blockage and the risk of nationalization or expropriation of assets. Uncertainty regarding inflation and currency

Columbia Research Enhanced Emerging Economies ETF

exchange rates, fiscal policy, credit ratings and the possibility that future harmful political actions will be taken by the Indian government, could negatively impact the Indian economy and securities markets, and thus adversely affect the Fund’s performance.

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 the Starting Universe and 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, reconstitution and rebalancing, 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 was developed by the Investment Manager and is owned by an independent index provider.

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.

■

Mid-Cap Stock Risk. Investments in mid-capitalization companies (mid-cap companies) often involve greater risks than investments in larger, more established companies (larger companies) because 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, and may be less liquid than the securities of larger companies.

■

Large-Cap Stock Risk. Investments in larger companies may involve certain risks associated with their larger size. For instance, larger companies may be less able to respond quickly to new competitive challenges, such as changes in consumer tastes or innovation from smaller competitors. Also, larger companies are sometimes less able to achieve as high growth rates as successful smaller companies, especially during extended periods of economic expansion.

Liquidity Risk. Liquidity risk is the risk associated with any event, circumstance, or characteristic of an investment or market that negatively impacts the Fund’s ability to sell, or realize the proceeds from the sale of, an investment at a desirable time or price. Liquidity risk may arise because of, for example, a lack of marketability of the investment, which means that when seeking to sell its portfolio investments, the Fund could find that selling is more difficult than anticipated, especially during times of high market volatility. Market participants attempting to sell the same or a similar instrument at the same time as the Fund could exacerbate the Fund’s exposure to liquidity risk. The Fund may have to accept a lower selling price for the holding, sell other liquid or more liquid investments that it might otherwise prefer to hold (thereby increasing the proportion of the Fund’s investments in less liquid or illiquid securities), or forgo another more appealing investment opportunity. The liquidity of Fund investments may change significantly over time and certain investments that were liquid when purchased by the Fund may later become illiquid, particularly in times of overall economic distress. Changing regulatory, market or other conditions or environments (for example, the interest rate or credit environments) may also adversely affect the liquidity and the price of the Fund's investments. Judgment plays a larger role in valuing illiquid or less liquid investments as compared to valuing liquid or more liquid investments. Price volatility may be higher for illiquid or less liquid investments as a result of, for example, the relatively less frequent pricing of such securities (as compared to liquid or more liquid investments). Generally, the less liquid the market at the time the Fund sells a portfolio investment, the greater the risk of loss or decline of value to the Fund. Overall market liquidity and other factors can lead to an increase in redemptions of creation units, which may negatively impact Fund performance and NAV, including, for example, if the Fund is forced to sell investments in a down market. In certain circumstances, the Fund might not be able to dispose of certain holdings quickly or at fair prices, preventing the Fund from tracking the Index. Foreign securities can present enhanced liquidity risks, including as a result of less developed custody, settlement or other practices of foreign markets. In addition, in stressed market conditions, the market for Fund shares may become less liquid. Deterioration in the liquidity of Fund shares may adversely impact the liquidity of the Fund's underlying portfolio securities. These adverse impacts on the liquidity of Fund shares and on the liquidity of the Fund's underlying portfolio securities could in turn lead to 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.

Columbia Research Enhanced Emerging Economies ETF

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.

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.

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.

Sector Risk. At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a related group of industries within one or more economic sectors, including the financials and information technology sectors. The Fund generally invests in issuers, including to concentrate its investments in issuers conducting business in a related group of industries, to approximately the same extent as the Index. Because of its representative sampling approach to tracking the Index, the Fund may have over- or under-weight holdings in issuers relative to issuer weightings in the Index. Companies in the same sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make the Fund vulnerable to unfavorable developments in that group of industries or economic sector.

■

Financials Sector. The Fund is vulnerable to the particular risks that may affect companies in the financials sector. Companies in the financials sector are subject to certain risks, including the risk of regulatory change, decreased liquidity in credit markets and unstable interest rates. Such companies may have concentrated portfolios, such as a high level of loans to one or more industries or sectors, which makes them vulnerable to economic conditions that affect such industries or sectors. Performance of such companies may be affected by competitive pressures and exposure to investments, agreements and counterparties, including credit products that, under certain circumstances, may lead to losses (e.g., subprime loans). Companies in the financials sector are subject to extensive governmental regulation that may limit the amount and types of loans and other financial commitments they can make, and the interest rates and fees they may charge. In addition, profitability of such companies is largely dependent upon the availability and the cost of capital.

■

Information Technology Sector. The Fund is vulnerable to the particular risks that may affect companies in the information technology sector. Companies in the information technology sector are subject to certain risks, including the risk that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. Performance of such companies may be affected by factors including

Columbia Research Enhanced Emerging Economies ETF

obtaining and protecting patents (or the failure to do so) and significant competitive pressures, including aggressive pricing of their products or services, new market entrants, competition for market share and short product cycles due to an accelerated rate of technological developments. Such competitive pressures may lead to limited earnings and/or falling profit margins. As a result, the value of their securities may fall or fail to rise. In addition, many information technology sector companies have limited operating histories and prices of these companies’ securities historically have been more volatile than other securities, especially over the short term. Some companies in the information technology sector are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action, which could negatively impact the value of their securities.

Performance Information

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 a broad measure of market performance and the index the Fund seeks to track.

The Fund’s performance prior to June 28, 2024 reflects returns achieved according to different principal investment strategies. If the Fund’s current strategies had been in place for the prior periods, results shown may have been different.

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.

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.

Columbia Management has been the Fund’s investment manager since September 1, 2016. Performance prior to September 1, 2016 is attributable to the Fund's previous investment manager.

Year by Year Total Return (%) as of December 31 Each Year*	Best and Worst Quarterly Returns During the Period Shown in the Bar Chart
	Best	2nd Quarter 2020	16.69%
	Worst	1st Quarter 2020	-16.49%

Year to Date return as of June 30, 2026: 30.12%

Columbia Research Enhanced Emerging Economies ETF

Average Annual Total Returns (for periods ended December 31, 2025)

	Inception Date	1 Year	5 Years	10 Years
At NAV	09/14/2010
returns before taxes		33.48%	0.84%	3.73%
returns after taxes on distributions		32.90%	0.74%	3.66%
returns after taxes on distributions and sale of Fund shares		20.19%	0.82%	3.12%
Beta Advantage® Research Enhanced Solactive Emerging Economies Index(1) (reflects no deductions for fees, expenses or taxes)		32.30%	N/A	21.51% (2)
Combined Current and Former Indices(3) (reflects no deductions for fees, expenses or taxes)		32.30%	1.16%	4.33%
MSCI Emerging Markets Index (Net) (reflects reinvested dividends net of withholding taxes but reflects no deductions for fees, expenses or other taxes)		33.57%	4.20%	8.42%

(1) The Fund started tracking the performance of the Beta Advantage® Research Enhanced Solactive Emerging Economies Index (the Current Index) on June 28, 2024. The Current Index commenced operations on May 2, 2024 and therefore did not have performance information prior to that date. For periods prior to February 3, 2025, the Fund sought to track the performance of its index, which was not calculated in the manner that the Current Index is currently calculated. As a result, the performance of the Fund and the Current Index for periods prior to that date is not representative of the performance they would have achieved had the Fund sought to track the performance of the Current Index as currently calculated.

(2) The Life of Fund Beta Advantage® Research Enhanced Solactive Emerging Economies Index performance is for the period from June 28, 2024 through December 31, 2025.

(3) The Combined Current and Former Indices performance represents the Fund's Former Index (the Dow Jones Emerging Markets Consumer TitansTM Index) performance until June 28, 2024 and the Fund's Current Index performance for the period from June 28, 2024 through December 31, 2025.

S&P DJI made changes to the Dow Jones Emerging Markets Consumer TitansTM Index’s name (formerly, the Dow Jones Emerging Markets Consumer Titans 30TM Index) and construction methodology that went into effect March 18, 2019 (the Index Change Date). Thus, the Index and Fund returns prior to the Index Change Date relate to the Index’s construction methodology (and the Fund’s tracking thereof) in effect prior to the Index Change Date.

Fund Management

Investment Manager: Columbia Management Investment Advisers, LLC

Portfolio Management	Title	Role with Fund	Managed Fund Since
Christopher Lo, CFA	Senior Portfolio Manager	Lead Portfolio Manager	2016
Henry Hom, CFA	Senior Portfolio Manager	Portfolio Manager	2021

Purchase and Sale of Fund Shares

The Fund issues and redeems shares only through Authorized Participants (intermediaries, typically broker-dealers who have executed an agreement with the Fund's distributor that governs transactions in Fund creation units) in large blocks of shares, typically 50,000 shares, called Creation Units. Creation Units are issued and redeemed typically for an in-kind basket of securities. Except when aggregated in Creation Units, the Fund shares are not redeemable securities of the Fund.

Individual shares may only be purchased and sold on secondary markets through a financial intermediary, such as a broker-dealer or a bank. Because the Fund’s shares trade at market prices rather than NAV, shares may trade at a price greater than NAV (a premium) or less than NAV (a discount). You may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the ETF (bid) and the lowest price a seller is willing to accept for shares of the ETF (ask) when buying or selling shares in the secondary market (the bid/ask spread). Recent information, including information regarding the Fund’s NAV, market price, premiums and discounts, and bid/ask spread, is available at columbiathreadneedleus.com/etfs.

Tax Information

The Fund’s distributions are taxable and generally will be taxed as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an IRA, in which case your distributions generally will be taxed when withdrawn from the tax-deferred account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your financial advisor to recommend the Fund over another investment. Ask your financial advisor or visit your financial intermediary’s

Columbia Research Enhanced Emerging Economies ETF