X0508 4 2025-09-12 0001901637 USCB FINANCIAL HOLDINGS, INC. USCB 0001732866 Feinglass Howard 2000 SALZEDO STREET, SUITE 1514 CORAL GABLES FL 33134 1 1 0001874961 Priam Capital Fund II, L.P. 2000 SALZEDO STREET, SUITE 1514 CORAL GABLES FL 33134 1 0001875134 Priam Capital Associates II LLC 2000 SALZEDO STREET, SUITE 1514 CORAL GABLES FL 33134 1 0 Class A Voting Common Stock 2025-09-12 4 J 0 50000 0 D 3968309 I By Priam Capital Fund II, LP Class A Voting Common Stock 6314 D Option to Purchase Class A Voting Common Stock 7.5000 2016-03-01 Class A Common Stock 7500 7500 D Option to Purchase Class A Voting Common Stock 11.3500 2019-09-23 Class A Common Stock 4000 4000 D Priam Captial Fund II, LP distributed these shares to an unaffiliated limited partner in Priam Capital Fund II, LP for no consideration. Priam Capital Fund II, L.P. ("Priam Capital II") directly holds the indicated number of shares of the Issuer's Class A Voting Common Stock. Priam Capital Associates II LLC ("Priam Capital Associates") is the general partner of Priam Capital II. Howard P. Feinglass is the managing member of Priam Capital Associates. By virtue of such relationships, Priam Capital Associates and Mr. Feinglass may be deemed to have voting and dispositive power over securities held by Priam Capital II and, as a result, may be deemed to have beneficial ownership of such securities. Priam Capital Associates and Mr. Feinglass disclaim beneficial ownership of the reported securities, except to the extent of their respective pecuniary interest therein, and this report shall not be deemed an admission that they are beneficial owners of such securities for the purposes of Section 16. The options were previously granted to Mr. Feinglass as a director of the Company. Each option to purchase Class A Voting Common Stock remains exercisable until the earlier of (a) ten (10) years after its date of grant or (b) the (3) months after the date Mr. Feinglass ceases to serve as a non-employee of the Issuer. /s/ Robert Anderson by P.O.A. for Howard P. Feinglass 2025-09-15 /s/ Priam Capital Associates II LLC Robert Anderson by P.O.A. for Howard P. Feinglass, the managing member of Priam Capital Associates II, LLC 2025-09-15 /s/ Priam Capital Fund II, L.P. Robert Anderson by P.O.A. for Howard P. Feinglass, the managing member of Priam Capital Associates II, LLC, the general partner of Priam Capital Fund II, L.P. 2025-09-15