X0206 3 2023-10-30 0 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 Class A Voting Common Stock 2926 D Stock Option-Class A Voting Common Stock 12.0500 2022-09-27 2031-09-27 Class A Voting Common Stock 15000 D Includes 2,426 shares of restricted stock which vest at a rate of one-third per year commencing on the first anniversary of the date of grant which was 3/8/2023. The stock options vest pro rata at a rate of one-third per year commencing on the first anniversary of the date of grant. The stock options remain exercisable until the earlier of (i) 10 years after the date of grant or (ii) three months after the Reporting Person ceases to be employed by the Issuer. /s/ Maricarmen Logrono 2023-11-07