Calamos Antetokounmpo Sustainable Equities Trust

04/17/2026 | Press release | Distributed by Public on 04/17/2026 09:29

Prospectus Certification by Investment Company (Form 497J)

April 17, 2026

VIA EDGAR

Filing Desk

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: Calamos Antetokounmpo Sustainable Equities Trust (the "Trust") (File Nos. 333-267049 and 811-23822)

Ladies and Gentlemen:

On behalf of the Trust, and pursuant to the Securities Act of 1933, as amended (the "Securities Act"), and Rule 497(j) thereunder, we hereby represent that the definitive forms of the Trust's Prospectus and Statement of Additional Information, each dated May 1, 2026, that would have been filed pursuant to the requirements of Rule 497(c) under the Securities Act, would not have differed from those contained in the Trust's Post-Effective Amendment No. 4 to its Registration Statement on Form N-1A, which was filed electronically with the Securities and Exchange Commission pursuant to Rule 485(b) under the Securities Act on April 15, 2026.

If you have any questions concerning this filing, please call me at 630-245-1105.

Sincerely,
Calamos Advisors LLC
/s/ Susan L. Schoenberger
Susan L. Schoenberger, Esq.
Vice President, Associate Counsel
cc: John P. Calamos, Sr.
Erik D. Ojala, Esq.
Paulita Pike, Esq., Ropes & Gray LLP
Rita Rubin, Esq., Ropes & Gray LLP
Elizabeth Madsen, Esq., Ropes & Gray LLP
Lawrence Zmerega, Esq., Ropes & Gray LLP
Calamos Antetokounmpo Sustainable Equities Trust published this content on April 17, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on April 17, 2026 at 15:29 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 If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]