X0508 5 2025-12-31 0 1 0000036146 TRUSTMARK CORP TRMK 0001036241 BAKER ADOLPHUS B P. O. BOX 2960 JACKSON MS 39207 1 0 0 0 0 Common Stock 2025-04-29 4 P 0 10 34.09 A 57535 D Common Stock 2025-07-08 4 P 0 5 38.56 A 57540 D Common Stock 2025-08-11 4 S 0 5 36.83 D 57535 D Common Stock 2025-04-29 4 P 0 30 33.60 A 30 I By Spouse Common Stock 2025-07-11 4 P 0 30 38.58 A 60 I By Spouse Common Stock 2025-07-29 4 P 0 30 38.14 A 90 I By Spouse The reporting person's sale of Trustmark Corporation common stock reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 5 shares, with the reporting person's purchase of 5 shares of Trustmark Corporation common stock at a price of $33.60 per share on April 29, 2025. The reporting person has paid, pursuant to an agreement, Trustmark Corporation $16.15, representing the full amount of the profit realized in connection with the short-swing transaction, less transaction costs. Includes 953 shares acquired through TRMK Employee and Director Stock Purchase Plan as of December 31, 2025. Adolphus B. Baker by Granville Tate, Jr., POA 2026-02-13