X0508 4 2024-04-23 0 0000036029 FIRST FINANCIAL BANKSHARES INC FFIN 0001033746 COPELAND DAVID L P. O. BOX 701 ABILENE TX 79604-0701 1 0 0 0 0 Common Stock 2024-04-23 4 A 0 2295 0.00 A 47850 D Common Stock 241336 I By Trust, as Custodian or Sole Manager This amount represents a restricted stock grant that vests in a single installment on April 29, 2025. This indirect ownership represents shares owned by trusts in which Mr. Copeland is trustee or co-trustee. Mr. Copeland disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that Mr. Copeland is the beneficial owner of such securities for purposes of Section 16 or any other purpose. By: Michelle S. Hickox Attorney in Fact for David L. Copeland 2024-04-25