American Century ETF Trust

03/06/2026 | Press release | Distributed by Public on 03/06/2026 15:48

Prospectus by Investment Company (Form 497)


Statement of Additional Information (SAI) Supplement

American Century® Focused Dynamic Growth ETF
SAI dated January 1, 2025

Focused Dynamic Growth Fund
SAI dated December 1, 2025
Supplement dated March 7, 2026

Henry He, CFA, Vice President and Portfolio Manager, will no longer serve as portfolio manager for the funds effective March 31, 2026.

The following entry is added for Yeon Hee Oh in the Accounts Managed table on pages 24-25 of the American Century ETF Trust SAI effective March 15, 2026:
Accounts Managed
Registered Investment
Companies (e.g., American Century Investments funds and American Century Investments- subadvised funds)
Other Pooled Investment Vehicles (e.g., commingled
trusts and 529 education savings plans)
Other Accounts (e.g., separate accounts and
corporate accounts
including incubation
strategies and
corporate money)
Yeon Hee Oh1
Number of Accounts 2 2 1
Assets
$2.3 billion2
$302.9 million $763.9 thousand
1 Information provided as of February 27, 2026.
2 Includes $340.3 million in American Century Focused Dynamic Growth ETF.

The following entry is added for Yeon Hee Oh in the Ownership of Securities table on page 27 of the American Century ETF Trust SAI effective March 15, 2026:
Ownership of Securities
Aggregate Dollar Range of Securities in Fund
American Century Focused Dynamic Growth ETF
Yeon Hee Oh1
A
Ranges: A - none; B - $1-$10,000; C - $10,001-$50,000; D - $50,001-$100,000; E - $100,001-$500,000; F - $500,001-$1,000,000; G - More than $1,000,000.
1 Information provided as of February 27, 2026.




The following entry is added for Yeon Hee Oh in the Accounts Managed table on page 29 of the American Century Growth Funds, Inc. SAI effective March 15, 2026:
Accounts Managed
Registered Investment
Companies (e.g., American Century Investments funds and American Century Investments- subadvised funds)
Other Pooled Investment Vehicles (e.g., commingled
trusts and 529 education savings plans)
Other Accounts (e.g., separate accounts and
corporate accounts
including incubation
strategies and
corporate money)
Yeon Hee Oh1
Number of Accounts 2 2 1
Assets
$2.3 billion2
$302.9 million $763.9 thousand
1 Information provided as of February 27, 2026.
2 Includes $1.9 billion in Focused Dynamic Growth Fund.

The following entry is added for Yeon Hee Oh in the Ownership of Securities table on page 31 of the American Century Growth Funds, Inc. SAI effective March 15, 2026:
Ownership of Securities
Aggregate Dollar Range of Securities in Fund
Focused Dynamic Growth
Yeon Hee Oh1
A
Ranges: A - none; B - $1-$10,000; C - $10,001-$50,000; D - $50,001-$100,000; E - $100,001-$500,000; F - $500,001-$1,000,000; G - More than $1,000,000.
1 Information provided as of February 27, 2026.





























©2026 American Century Proprietary Holdings, Inc. All rights reserved.
CL-SPL-98862 2603

American Century ETF Trust published this content on March 06, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on March 06, 2026 at 21:49 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]