| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| GUERRA-KATTOU MARTHA | EVP, Sales and Marketing | C/O USCB FINANCIAL HOLDINGS, INC., 2301 N.W. 87TH AVENUE, DORAL | /s/ Robert Anderson by P.O.A. for Martha Guerra-Kattou | 10 Mar 2026 | 0001916962 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | USCB | Class A Voting Common Stock | Tax liability | -401 | -0.98% | $18.45* | 40,638 | 08 Mar 2026 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | USCB | Options to Purchase Class A Voting Stock | 40,000 | 08 Mar 2026 | Class A Voting Common Stock | 40,000 | $12.05 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Includes 885 shares of restricted stock from a grant of 2,655 shares which commenced vesting at a rate of one-third per year on January 22, 2025, 13,333 shares of restricted stock from a grant of 20,000 shares which commenced vesting at a rate of one-third per year on October 28, 2025, 3,938 shares of restricted stock from a grant of 5,907 shares which commenced vesting at a rate of one-third per year on January 21, 2026 and 6,217 shares of restricted stock which vest at a rate of one-third per year commencing on January 27, 2027. |
| F2 | The options vested at a rate of one-third per year commencing on January 22, 2022. |