Capital Group Completion Fund Series

09/15/2025 | Press release | Distributed by Public on 09/15/2025 09:13

Prospectus Certification by Investment Company (Form 497J)

September 15, 2025

Document Control

U.S. Securities and Exchange Commission

100 F. Street, NE

Washington, D.C. 20549

Re: Capital Group Completion Fund Series

File Nos. 333-278929 and 811-23959

Dear Sir or Madam:

Pursuant to Rule 497(j), I hereby certify that no changes have been made to the forms of prospectuses and Statement of Additional Information since the electronic filing on September 10, 2025 of Registrant's Post-Effective Amendment No. 3 under the Securities Act of 1933 and Amendment No. 5 under the Investment Company Act of 1940, both as amended.

Sincerely,

/s/Courtney R. Taylor

Courtney R. Taylor

Secretary

Capital Group Completion Fund Series published this content on September 15, 2025, and is solely responsible for the information contained herein. Distributed via SEC EDGAR on September 15, 2025 at 15:13 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 If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]