Exhibit 16.1
December 16, 2024
Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549
Commissioners:
We have read the statements made by Hennessy Advisors, Inc. under Item 4.01 of its Form 8-K dated December 10, 2024. We agree with the statements concerning our Firm in such Form 8-K; we are not in a position to agree or disagree with other statements of Hennessy Advisors, Inc. contained therein.
Very truly yours,
/s/ Marcum LLP
Marcum LLP
