# EDGAR Filing Document

**Accession Number:** 0001901637
**File Stem:** 0001437749-26-017258
**Filing Date:** 2026-5
**Character Count:** 7738
**Document Hash:** 2d13b731c638b6f229709dbd4d227100
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001437749-26-017258.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0001437749-26-017258

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260513

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** DE LA AGUILERA LUIS
- **CENTRAL INDEX KEY:** 0001916660

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41196
- **FILM NUMBER:** 26983902

**MAIL ADDRESS:**
- **STREET 1:** C/O USCB FINANCIAL HOLDINGS, INC.
- **STREET 2:** 2301 NW 87TH AVENUE
- **CITY:** DORAL
- **STATE:** FL
- **ZIP:** 33172
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** USCB FINANCIAL HOLDINGS, INC.
- **CENTRAL INDEX KEY:** 0001901637
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 874070846
- **STATE OF INCORPORATION:** FL
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 2301 NW 87TH AVENUE
- **CITY:** DORAL
- **STATE:** FL
- **ZIP:** 33172
- **BUSINESS PHONE:** (305) 715-5200

**MAIL ADDRESS:**
- **STREET 1:** 2301 NW 87TH AVENUE
- **CITY:** DORAL
- **STATE:** FL
- **ZIP:** 33172

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>DE LA AGUILERA LUIS<br><sub>(Last) (First) (Middle)</sub><br>C/O USCB FINANCIAL HOLDINGS, INC.<br>2301 N.W. 87TH AVENUE<br><sub>(Street)</sub><br>DORAL, FL 33172<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-13 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President and CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>USCB FINANCIAL HOLDINGS, INC. [ USCB ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class A Voting Common Stock | 2026-05-13 |  | M |  | 19947 | A | $12.05 | 268171<sup>(1)</sup> | D |  |
| Class A Voting Common Stock | 2026-05-13 |  | S |  | 19947 | D | 18.06<sup>(2)</sup> | 242945<sup>(1)</sup> | D |  |
| Class A Voting Common Stock | 2026-05-14 |  | M |  | 22883 | A | $12.05 | 265828<sup>(1)</sup> | D |  |
| Class A Voting Common Stock | 2026-05-14 |  | S |  | 22883 | D | 18.20<sup>(3)</sup> | 242945<sup>(1)</sup> | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (Right to Buy) | $12.05 | 2026-05-13 |  | M |  |  | 19947 | 2022-09-27<sup>(4)</sup> | 2031-09-27 | Common Stock | 19947 | $0 | 134774 | D |  |
| Stock Option (Right to Buy) | $12.05 | 2026-05-14 |  | M |  |  | 22883 | 2022-09-27<sup>(4)</sup> | 2031-09-27 | Common Stock | 22883 | $0 | 111891 | D |  |

---

### Footnotes:

(1) Includes the grant of 27,632 shares of restricted stock which vest at a rate of one-third per year commencing on January 27, 2027, 17,102 shares of restricted stock from a grant of 25,653 shares which commenced vesting at a rate of one-third per year on January 21, 2026, 4,045 shares of restricted stock from a grant of 12,136 shares which commenced vesting at a rate of one-third per year on January 22, 2025, and 41,666 shares of restricted stock from a grant of 125,000 shares which commenced vesting at a rate of one-third per year on December 31, 2024.

(2) The price reported in column 4 is a weighted price. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.33, inclusive. The reporting person undertakes to provide to USCB, or any security holder of USCB, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

(3) The price reported in column 4 is a weighted price. These shares were sold in multiple transactions at prices ranging from $18.10 to $18.34, inclusive. The reporting person undertakes to provide to USCB, or any security holder of USCB, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

(4) The stock options vested at the rate of one-third per year commencing on September 27, 2022.

**Signature:** /s/ Robert Anderson by P.O.A. for Luis de la Aguilera  
**Date:** 2026-05-15

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**