X0508 4 2026-02-13 0000036146 TRUSTMARK CORP TRMK 0001263552 DEWEY DUANE A P. O. BOX 291 JACKSON MS 39205 1 1 0 0 President & CEO 0 Common Stock 2026-02-13 4 F 0 4076 44.73 D 133881 D Common Stock 5757 I By Company-Sponsored 401(k) Shares withheld to satisfy tax withholding obligation in connection to vesting of restricted stock units granted February 15, 2023. Includes 147 shares acquired through company sponsored 401(k) between January 1, 2025, and December 31, 2025. Information in this report is based on information provided by the plan administrator dated as of February 2, 2026. Duane Dewey by Granville Tate, Jr., POA 2026-02-17