Strategy. Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in equity securities of large-capitalization companies, primarily common stocks and securities that can be converted into common stocks. These companies have market capitalizations in the range of companies in the Russell 1000 Growth Index (the Index) at the time of purchase (between $564.1 million and $3.2 trillion as of April 30, 2025). The market capitalization range and composition of companies in the Index are subject to change. 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. The Fund may … Show more… Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in equity securities of large-capitalization companies, primarily common stocks and securities that can be converted into common stocks. These companies have market capitalizations in the range of companies in the Russell 1000 Growth Index (the Index) at the time of purchase (between $564.1 million and $3.2 trillion as of April 30, 2025). The market capitalization range and composition of companies in the Index are subject to change. 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. The Fund may invest in U.S. and foreign securities, including emerging market securities. The Fund may invest in foreign securities directly or indirectly through depositary receipts. The Fund may from time to time emphasize one or more economic sectors in selecting its investments, including the consumer discretionary and information technology sectors. The Fund may also invest in exchange-traded funds (ETFs). Columbia Management Investment Advisers, LLC (Columbia Management or the Investment Manager) serves as the investment manager for the Fund. Columbia Management is responsible for providing day-to-day portfolio management of a liquidity strategy sleeve of the Fund and is also responsible for oversight of the Funds subadvisers. Each subadviser employs its own large cap growth strategy and investment process in its respective sleeve that Columbia Management believes complement one another in pursuit of the Funds investment objective. The Funds subadvisers are J.P. Morgan Investment Management Inc. (JPMIM) , Loomis, Sayles & Company, L.P. (Loomis Sayles) and Los Angeles Capital Management LLC (Los Angeles Capital). Columbia Management, subject to the oversight of the Funds Board of Trustees, determines, in its discretion, the allocation of the Funds assets to each sleeve, and may change these allocations at any time. One or more of the Funds subadvisers use quantitative methods to identify investment opportunities and construct their portion of the Funds portfolio. Show less