Driehaus Mutual Funds

05/02/2025 | Press release | Distributed by Public on 05/02/2025 08:49

Prospectus Certification by Investment Company (Form 497J)

Chicago

New York

Washington, DC

London

San Francisco

Los Angeles

Singapore

Dallas

Miami

vedderprice.com

May 2, 2025

Renee M. Hardt

Shareholder

+1 312 609 7616

rhardt@vedderprice.com

VIA EDGAR

Securities and Exchange Commission
100 F. Street, NE
Washington, D.C. 20546

Re: Driehaus Mutual Funds ("Registrant")
Registration Nos. 333-05265 and 811-07655

To the Commission:

Pursuant to Rule 497(j) of Regulation C, under the Securities Act of 1933, in lieu of filing under paragraph (b) or (c) of Rule 497, on behalf of the Registrant, we hereby certify that (1) the forms of Prospectus and Statement of Additional Information, each dated April 30, 2025, as filed on April 28, 2025 for the above-captioned Registrant that would have been filed under paragraph (b) or (c) of Rule 497 do not differ from that contained in the most recent registration statement or amendment and (2) the text of the most recent registration statement or amendment has been filed electronically.

Very truly yours,

/s/ Renee M. Hardt

Renee M. Hardt

222 North LaSalle Street | Chicago, Illinois 60601 | T +1 312 609 7500 | F +1 312 609 5005

Vedder Price P.C. is affiliated with Vedder Price LLP, which operates in England and Wales, Vedder Price (CA), LLP, which operates in California, Vedder Price Pte. Ltd., which operates in Singapore, and Vedder Price (FL) LLP, which operates in Florida.

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