Form 497 MSS Series Trust

MSS Series Trust

Towpath Focus Fund

Ticker: TOWFX

Towpath Technology Fund

Ticker: TOWTX

SUPPLEMENT DATED JUNE 18, 2026 TO STATEMENT OF ADDITIONAL INFORMATION (“SAI”) DATED MARCH 31, 2026

Effective May 12, 2026, the Board appointed Bob Anastasi as Treasurer, Secretary and Chief Compliance Officer of the Trust and approved Hanover Fund Administration, LLC to provide administrator and compliance services to the Trust. Any information in the SAI to the contrary should be disregarded.  

Accordingly, the Interested Trustee and Officer table under the section entitled “Trustee Qualifications” is replaced with the following:

Interested Trustee and Officer

¹ Gregory B. Getts is considered an "Interested" Trustee as defined in the 1940 Act because he is an officer of the Trust and President/owner of the Funds' distributor.

² The "Fund Complex" consists of MSS Series Trust.

You should read this Supplement in conjunction with the Funds’ Statement of Additional Information, dated March 31, 2026. These documents are available upon request and without charge by calling the Funds at 1-877-593-8637 or by writing to the Funds at 8000 Town Centre Drive, Suite 400, Broadview Heights, Ohio 44147-4031.

Please retain this Supplement for future reference.