X0508 4 2025-01-22 0001901637 USCB FINANCIAL HOLDINGS, INC. USCB 0001999607 Logrono Maricarmen C/O USCB FINANCIAL HOLDINGS, INC. 2301 N.W. 87TH AVENUE DORAL FL 33172 1 EVP and Chief Risk Officer 0 Class A Voting Common Stock 2025-01-22 4 F 0 260 18.27 D 10936 D Options to Purchase Class A Voting Stock 12.0500 2022-09-27 2031-09-27 Class A Voting Common Stock 15000 15000 D Includes 1,753 shares of restricted stock of which 877 shares vest on January 22, 2026 and 876 shares vest on January 22, 2027, and 1,617 shares of restricted stock which commenced vesting at a rate of one-third per year which commencing on March 8, 2024, and 5,880 shares of restricted stock which vest at a rate of one-third per year commencing on January 21, 2026. The options vest at a rate of one-third per year commencing on the first anniversary of the date of grant, which was 9/27/2021. /s/ Robert Anderson by P.O.A. for Maricarmen Logrono 2025-01-24