RBB Bancorp Insider Vincent Liu Reports RSU Vesting on March 20, 2026

TL;DR

**RBB Bancorp insider Vincent Liu's RSU vested, watch for potential stock sales or increased holdings.**

AI Summary

On March 20, 2026, Vincent Liu, an insider at RBB Bancorp, reported a change in his beneficial ownership of securities. This filing, a Form 4, indicates that Liu's RSU (Restricted Stock Unit) vesting event occurred. While the specific number of shares isn't detailed in this summary, such events typically involve the conversion of RSUs into common stock, which can increase an insider's direct ownership or lead to sales to cover taxes. This matters to investors because it provides transparency into how key executives are compensated and manage their holdings in RBB Bancorp, potentially signaling their confidence in the company's future.

Why It Matters

This filing provides transparency into insider compensation and stock ownership changes, which can influence investor perception of RBB Bancorp's stability and future prospects.

Risk Assessment

Risk Level: low — This filing is a routine disclosure of an RSU vesting event and does not inherently indicate a high risk.

Analyst Insight

An investor should monitor subsequent filings (like another Form 4) to see if Vincent Liu sold shares after the RSU vesting, which could indicate a change in his outlook or simply a tax-related sale. If no sales occur, it could imply continued confidence in RBB Bancorp.

Key Players & Entities

• Vincent Liu (person) — Reporting Person, insider at RBB Bancorp
• RBB Bancorp (company) — Issuer of the securities
• March 20, 2026 (date) — Period of Report

FAQ

Filing Documents

• rdgdoc.html (4)
• rdgdoc.xml (4) — 8KB
• 0001437749-26-009579.txt ( ) — 10KB

From the Filing

SEC FORM 4 SEC Form 4 FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5    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 * Liu Vincent (Last) (First) (Middle) 1055 WILSHIRE BLVD SUITE 1200 (Street) LOS ANGELES CALIFORNIA 90017 (City) (State) (Zip) UNITED STATES (Country) 2. Issuer Name and Ticker or Trading Symbol RBB Bancorp [ RBB ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) EVP 2a. Foreign Trading Symbol 3. Date of Earliest Transaction (Month/Day/Year) 03/20/2026 6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person 4. If Amendment, Date of Original Filed (Month/Day/Year) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, No Par Value 03/20/2026 M 1,835 A $ 20.43 17,984 D Common Stock, No Par Value 03/20/2026 F 659 D $ 20.43 17,325 D Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units $ 0.0000 (2) (1) Common Stock (4) 931 931 D Restricted Stock Units $ 20.43 03/20/2026 M 1,835 (3) (1) Common Stock (4) 3,670 $ 0 1,835 D Explanation of Responses: 1. There will be no expiration date once restricted stock units vest. 2. These restricted stock units vest in three equal annual installments beginning one year after the 02/21/2024 date of grant. 3. These restricted stock units vest in three equal annual installments beginning one year after the 03/20/2024 date of grant. 4. The Form 4 has been updated to clarify that grants of RSUs will be settled in common stock. Remarks: Shares issued for vesting of 3/20/2024 RSU grant and shares disposed in settlement of tax withholding obligations for such RSU vesting. /s/ Vincent Liu 03/24/2026 ** Signature of Reporting Person Date 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. * Form 4: SEC 1474 (03-26)

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