Regulation FD Disclosure (Form 8-K)

Item 7.01. Regulation FD Disclosure.

On July 24, 2025, the Board of Governors of the Federal Reserve (the Federal Reserve) announced that Trustmark Corporation's principal subsidiary, Trustmark National Bank (TNB), had received approval to become a member of the Federal Reserve System.

This approval was granted in connection with an application that TNB submitted to the Mississippi Department of Banking and Consumer Finance (MDBCF) to convert TNB from a national banking association to a Mississippi-chartered banking corporation. That application remains pending with the MDBCF. TNB remains a national banking association that is supervised by the Office of the Comptroller of the Currency. Trustmark and TNB will update this disclosure as warranted by developments with respect to the pending MDBCF application.