Additional Proxy Soliciting Materials (Form DEFA14A)

DEFA14A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE

SECURITIES EXCHANGE ACT OF 1934

Filed by the Registrant ☒       Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐		Preliminary Proxy Statement.
☐		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)).
☐		Definitive Proxy Statement.
☒		Definitive Additional Materials.
☐		Soliciting Material under §240.14a-12.

Columbia ETF Trust I

(Name of Registrant as Specified in its Charter)

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Columbia Semiconductor and Technology ETF (SEMI)

IMPORTANT NOTICE:

Please exercise your right to vote as soon as possible!

Dear shareholder:

We recently sent you proxy materials concerning an important proposal affecting your fund, which will be considered at the Special Meeting of Shareholders of the fund on January 30, 2025 at 10:00 a.m. Eastern Time. This letter is being sent because you held shares in the fund on the record date, and we have not received your vote.

Your vote is very important.

Voting now will eliminate additional communications and minimize proxy costs.

Because your vote is critical, our outreach to you will continue until there is sufficient voting.

Shareholders of the fund are being asked to approve a change in the fund's fundamental policy regarding industry concentration.

Please vote using one of the following options:

1. Vote online

Log on to the website or scan the QR code shown on your proxy card(s). Please have your proxy card(s) in hand to access your control number (located in the box) and follow the on-screen instructions.

2. Vote by phone

Call the toll-free number listed on your proxy card(s). Please have your proxy card(s) in hand to access your control number (located in the box) and follow the recorded instructions.

3. Vote by mail

Complete, sign and date the proxy card(s), then return them in the enclosed postage-paid envelope.

The proxy materials we sent you contain important information regarding the proposal that you and other shareholders are being asked to consider. Please read the materials carefully. If you have any questions regarding the proposal, or need assistance with voting, you may call Computershare Fund Services, the funds' proxy solicitor, toll free at 877.351.1547.

View or download the Joint Proxy Statement: https://www.proxy-direct.com/col-34236

Thank you for your prompt attention to this matter. If you have already voted, we appreciate your participation.

Sincerely,
Columbia Threadneedle Investments
Columbia Management Investment Distributors, Inc. 290 Congress Street, Boston, MA 02210 columbiathreadneedle.com/us 800.426.3750			CTNA6083008.2
CET002302 (exp. 01/31/26)			R1_34236_S01032

Columbia management Investment Advisors, LLC serves as investment manager to the ETFs. ALPS Distributors, Inc. (Member FINRA) is the is the distributor for Columbia Threadneedle Investments ETFs. Columbia Management Investment Distributors, Inc., LLC (Member FINRA) is the marketing agent for the ETFs. ALPS Distributors Inc. is not affiliated with Columbia Threadneedle Investments.

Columbia Threadneedle Investments (Columbia Threadneedle) is the global brand name of the Columbia and Threadneedle group of companies.

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