Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 100 F Street, NE, Washington, DC 20549. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Columbia International Equity Income ETF

INEQ | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia International Equity Income ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia International Equity Income ETF	$23	0.45%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$33,014,456
Total number of portfolio holdings	101
Portfolio turnover for the reporting period	44%

Columbia International Equity Income ETF | SSR271_00_(06/25) | 1

Graphical Representation of Fund Holdings

The tables below show the investment makeup of the Fund represented as a percentage of the Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund’s portfolio composition is subject to change.

Top Holdings

Iberdrola SA (Spain)	4.7%
Siemens AG (Germany)	4.2%
Shell PLC (United States)	4.2%
Mitsubishi UFJ Financial Group, Inc. (Japan)	4.1%
TotalEnergies SE (France)	4.1%
Hitachi Ltd. (Japan)	3.7%
Sumitomo Mitsui Financial Group, Inc. (Japan)	3.6%
Tokio Marine Holdings, Inc. (Japan)	2.8%
Mitsubishi Corp. (Japan)	2.6%
ITOCHU Corp. (Japan)	2.6%

Sector Allocation

Value	Value
Real Estate	3.1%
Materials	3.2%
Information Technology	3.5%
Consumer Staples	4.1%
Communication Services	4.5%
Consumer Discretionary	4.8%
Health Care	5.0%
Utilities	8.0%
Energy	11.1%
Financials	24.6%
Industrials	26.9%

Geographic Allocation

Value	Value
Other	7.6%
Finland	2.2%
Italy	2.3%
United Kingdom	2.4%
Netherlands	2.6%
France	4.4%
United States	4.5%
Spain	5.8%
Sweden	8.5%
Germany	10.2%
Japan	48.6%

Availability of Additional Information

For additional information about the Fund, including its prospectus, financial information, holdings, federal tax information and proxy voting information, visit the Fund’s website included at the beginning of this report or scan the QR code below.

Columbia Management Investment Advisers, LLC serves as the investment manager to the ETFs. ALPS Distributors, Inc. (Member FINRA) is the distributor for Columbia Threadneedle Investments ETFs. Columbia Management Investment Distributors, Inc., LLC (Member FINRA) is a 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.

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

An image of a QR code that, when scanned, navigates the user to the following URL: http://www.columbiathreadneedleus.com/resources/literature

CET002454

Columbia International Equity Income ETF | SSR271_00_(06/25) | 2

Columbia U.S. Equity Income ETF

EQIN | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia U.S. Equity Income ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia U.S. Equity Income ETF	$17	0.35%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$182,528,911
Total number of portfolio holdings	101
Portfolio turnover for the reporting period	18%

Columbia U.S. Equity Income ETF | SSR272_00_(06/25) | 1

Graphical Representation of Fund Holdings

Top Holdings

Coca-Cola Co. (The)	5.0%
Exxon Mobil Corp.	4.6%
Home Depot, Inc. (The)	4.3%
Chevron Corp.	3.9%
UnitedHealth Group, Inc.	3.9%
International Business Machines Corp.	3.5%
AT&T, Inc.	3.2%
Accenture PLC Class A	3.0%
Verizon Communications, Inc.	2.9%
PepsiCo, Inc.	3.0%

Asset Allocation

Value	Value
Money Market Funds	0.5%
Exchange-Traded Equity Funds	0.8%
Common Stocks	98.6%

Sector Allocation

Value	Value
Materials	0.8%
Health Care	4.8%
Utilities	8.2%
Communication Services	8.3%
Consumer Discretionary	8.3%
Consumer Staples	12.1%
Financials	12.9%
Information Technology	13.3%
Energy	13.9%
Industrials	16.0%

Availability of Additional Information

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

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

CET002455

Columbia U.S. Equity Income ETF | SSR272_00_(06/25) | 2

Columbia Diversified Fixed Income Allocation ETF

DIAL | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia Diversified Fixed Income Allocation ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia Diversified Fixed Income Allocation ETF	$14	0.28%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$346,608,635
Total number of portfolio holdings	571
Portfolio turnover for the reporting period	93%
Portfolio turnover as of the end of the period excluding transactions in to be announced securities	11%

Columbia Diversified Fixed Income Allocation ETF | SSR290_00_(06/25) | 1

Graphical Representation of Fund Holdings

Top Holdings

Uniform Mortgage-Backed Security TBA 05/15/2055 5.500%	4.7%
U.S. Treasury Bill 06/26/2025 4.331%	4.3%
Uniform Mortgage-Backed Security TBA 05/15/2055 6.000%	4.2%
U.S. Treasury Bill 05/29/2025 4.329%	2.9%
Uniform Mortgage-Backed Security TBA 05/15/2055 5.000%	2.5%
Uniform Mortgage-Backed Security TBA 05/15/2055 6.500%	2.2%
U.S. Treasury Bond 08/15/2042 2.750%	1.5%
Mexico Government International Bond 05/07/2036 6.000%	1.2%
U.S. Treasury Bond 05/15/2042 3.250%	1.2%
Dominican Republic International Bond 09/23/2032 4.875%	1.0%

Asset Allocation

Value	Value
Money Market Funds	6.9%
U.S. Treasury Obligations	9.8%
Treasury Bills	7.2%
Residential Mortgage-Backed Securities - Agency	15.0%
Foreign Government Obligations	29.8%
Corporate Bonds	44.3%

Credit Quality Allocation

Value	Value
B rating	11.3%
BB rating	27.7%
BBB rating	25.8%
A rating	1.0%
AA rating	33.8%
AAA rating	6.4%

Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s Ratings, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's Ratings, S&P or Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily.

Availability of Additional Information

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

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

CET002460

Columbia Diversified Fixed Income Allocation ETF | SSR290_00_(06/25) | 2

Columbia Multi-Sector Municipal Income ETF

MUST | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia Multi-Sector Municipal Income ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia Multi-Sector Municipal Income ETF	$11	0.23%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$400,854,440
Total number of portfolio holdings	542
Portfolio turnover for the reporting period	8%

Columbia Multi-Sector Municipal Income ETF | SSR303_00_(06/25) | 1

Graphical Representation of Fund Holdings

Top States

New York	16.8%
Texas	10.9%
New Jersey	10.1%
Illinois	7.9%
Pennsylvania	5.9%
Florida	5.5%
Colorado	5.4%
Connecticut	4.3%
Ohio	3.4%
Georgia	2.8%

Credit Quality Allocation

Bar chart of the Fund's holdings as a percentage of net assets grouped by applicable category Ex: Asset Type, Sector, Country, or Credit Rating

Value	Value
Not Rated	0.1%
B rating	0.5%
BB rating	7.1%
BBB rating	7.3%
A rating	35.7%
AA rating	38.4%
AAA rating	9.3%

Availability of Additional Information

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

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

CET002459

Columbia Multi-Sector Municipal Income ETF | SSR303_00_(06/25) | 2

Columbia Research Enhanced Core ETF

RECS | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia Research Enhanced Core ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia Research Enhanced Core ETF	$7	0.15%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$2,461,868,461
Total number of portfolio holdings	367
Portfolio turnover for the reporting period	19%

Columbia Research Enhanced Core ETF | SSR305_00_(06/25) | 1

Graphical Representation of Fund Holdings

Top Holdings

Apple, Inc.	8.1%
Microsoft Corp.	7.6%
NVIDIA Corp.	6.8%
Amazon.com, Inc.	4.6%
Meta Platforms, Inc. Class A	3.0%
JPMorgan Chase & Co.	2.9%
Visa, Inc. Class A	2.5%
Philip Morris International, Inc.	2.2%
Alphabet, Inc. Class A	2.1%
Alphabet, Inc. Class C	2.0%

Asset Allocation

Value	Value
Money Market Funds	0.7%
Exchange-Traded Equity Funds	2.1%
Common Stocks	97.1%

Sector Allocation

Value	Value
Materials	2.2%
Utilities	2.4%
Real Estate	2.6%
Energy	3.2%
Consumer Staples	6.2%
Communication Services	8.6%
Consumer Discretionary	8.6%
Industrials	9.1%
Health Care	10.8%
Financials	14.7%
Information Technology	28.6%

Availability of Additional Information

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

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

CET002457

Columbia Research Enhanced Core ETF | SSR305_00_(06/25) | 2

Columbia Research Enhanced Value ETF

REVS | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia Research Enhanced Value ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia Research Enhanced Value ETF	$9	0.19%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$68,616,505
Total number of portfolio holdings	317
Portfolio turnover for the reporting period	27%

Columbia Research Enhanced Value ETF | SSR306_00_(06/25) | 1

Graphical Representation of Fund Holdings

Top Holdings

JPMorgan Chase & Co.	5.2%
Philip Morris International, Inc.	3.6%
Cisco Systems, Inc.	3.6%
Exxon Mobil Corp.	2.7%
Medtronic PLC	2.5%
Bristol-Myers Squibb Co.	2.3%
Bank of America Corp.	2.3%
Wells Fargo & Co.	2.1%
RTX Corp.	2.0%
Caterpillar, Inc.	1.6%

Asset Allocation

Value	Value
Money Market Funds	0.6%
Exchange-Traded Equity Funds	0.9%
Common Stocks	98.4%

Sector Allocation

Value	Value
Materials	4.1%
Communication Services	4.4%
Real Estate	4.6%
Utilities	4.9%
Consumer Discretionary	5.8%
Energy	6.3%
Consumer Staples	8.9%
Information Technology	8.9%
Industrials	13.9%
Health Care	14.4%
Financials	22.0%

Availability of Additional Information

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

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

CET002458

Columbia Research Enhanced Value ETF | SSR306_00_(06/25) | 2

Columbia Short Duration Bond ETF

SBND | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia Short Duration Bond ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia Short Duration Bond ETF	$12	0.24%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$54,008,960
Total number of portfolio holdings	575
Portfolio turnover for the reporting period	105%
Portfolio turnover as of the end of the period excluding transactions in to be announced securities	25%

Columbia Short Duration Bond ETF | SSR314_00_(06/25) | 1

Graphical Representation of Fund Holdings

Top Holdings

U.S. Treasury Bill 05/29/2025 4.329%	3.7%
Uniform Mortgage-Backed Security TBA 05/15/2040 5.000%	2.6%
Uniform Mortgage-Backed Security TBA 05/15/2040 4.500%	1.9%
Uniform Mortgage-Backed Security TBA 05/15/2040 4.000%	1.7%
Uniform Mortgage-Backed Security TBA 05/15/2040 5.500%	1.6%
Uniform Mortgage-Backed Security TBA 05/15/2040 3.500%	1.2%
Uniform Mortgage-Backed Security TBA 05/15/2040 6.000%	1.0%
Citigroup, Inc. 11/19/2034 5.592%	0.6%
CVS Health Corp. 03/25/2028 4.300%	0.6%
Boeing Co. (The) 05/01/2030 5.150%	0.6%

Asset Allocation

Value	Value
Money Market Funds	5.8%
Treasury Bills	3.7%
Residential Mortgage-Backed Securities - Agency	10.0%
Foreign Government Obligations	19.8%
Corporate Bonds	49.4%
Commercial Mortgage-Backed Securities - Non-Agency	10.0%
Asset-Backed Securities - Non-Agency	10.1%

Credit Quality Allocation

Value	Value
B rating	0.2%
BB rating	28.4%
BBB rating	41.8%
A rating	1.4%
AA rating	16.0%
AAA rating	15.2%

Availability of Additional Information

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

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

CET002473

Columbia Short Duration Bond ETF | SSR314_00_(06/25) | 2

Columbia Select Technology ETF

SEMI | NYSE Arca, Inc.

Semi-Annual Shareholder Report | April 30, 2025

This semi-annual shareholder report contains important information about Columbia Select Technology ETF (the Fund) for the period of November 1, 2024 to April 30, 2025. You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request this information by contacting us at 1-800-426-3750.

What were the Fund costs for the reporting period?

(Based on a hypothetical $10,000 investment)

Fund	Cost of a $10,000 investment	Cost paid as a percentage of a $10,000 investment
Columbia Select Technology ETF	$36	0.75%^{Footnote Reference(a)}

Footnote	Description
Footnote^(a)	Annualized.

Key Fund Statistics

Fund net assets	$33,319,562
Total number of portfolio holdings	36
Portfolio turnover for the reporting period	58%

Columbia Select Technology ETF | SSR321_00_(06/25) | 1

Graphical Representation of Fund Holdings

Top Holdings

NVIDIA Corp.	15.5%
Microsoft Corp.	11.0%
Apple, Inc.	10.9%
Broadcom, Inc.	8.4%
Amazon.com, Inc.	4.1%
Alphabet, Inc. Class A	3.7%
Meta Platforms, Inc. Class A	3.4%
Lam Research Corp.	3.2%
Visa, Inc. Class A	3.0%
Taiwan Semiconductor Manufacturing Co. Ltd.	3.0%

Sector Allocation

Value	Value
Industrials	1.2%
Consumer Discretionary	4.9%
Financials	5.4%
Communication Services	9.4%
Information Technology	77.7%

Sub-Industry Allocation

Value	Value
IT Services	1.9%
Communications Equipment	2.6%
Technology Hardware, Storage & Peripherals	10.9%
Software	25.1%
Semiconductors & Semiconductor Equipment	37.2%

Availability of Additional Information

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

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

CET002456

Columbia Select Technology ETF | SSR321_00_(06/25) | 2

(registrant)	Columbia ETF Trust I
By (Signature and Title)	/s/ Daniel J. Beckman
	Daniel J. Beckman, President and Principal Executive Officer
Date	June 18, 2025

By (Signature and Title)	/s/ Daniel J. Beckman
	Daniel J. Beckman, President and Principal Executive Officer
Date	June 18, 2025
By (Signature and Title)	/s/ Michael G. Clarke
	Michael G. Clarke, Chief Financial Officer,
	Principal Financial Officer and Senior Vice President
Date	June 18, 2025
By (Signature and Title)	/s/ Marybeth Pilat
	Marybeth Pilat, Treasurer, Chief Accounting
	Officer and Principal Financial Officer
Date	June 18, 2025