RBB Bancorp (RBB) EVP Vincent Liu logs RSU vesting and tax share sale

Rhea-AI Filing Summary

RBB Bancorp executive Vincent Liu reported equity award activity involving company stock. On January 16, 2026, 1,203 restricted stock units vested and were converted into 1,203 shares of RBB Bancorp common stock at a price of $21.56 per share. On the same date, 496 shares of common stock were disposed of at $21.56 per share to cover tax withholding obligations related to this vesting. After these transactions, Liu directly held 15,601 shares of common stock. He also directly held 1,863 restricted stock units linked to a 02/21/2024 grant and 3,670 restricted stock units linked to a 03/20/2024 grant, each vesting in three equal annual installments beginning one year after the respective grant date.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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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 CA 90017

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
01/16/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	01/16/2026		M		1,203	A	$21.56	16,097	D
Common Stock, No Par Value	01/16/2026		F		496	D	$21.56	15,601	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	01/16/2026		M			1,203	(2)	(1)	Common Stock(5)	1,203	$0	0	D
Restricted Stock Units	$0.0000							(3)	(1)	Common Stock(5)	1,863		1,863	D
Restricted Stock Units	$0.0000							(4)	(1)	Common Stock(5)	3,670		3,670	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 01/18/2023 date of grant.

3. These restricted stock units vest in three equal annual installments beginning one year after the 02/21/2024 date of grant.

4. These restricted stock units vest in three equal annual installments beginning one year after the 03/20/2024 date of grant.

5. The Form 4 has been updated to clarify that grants of RSUs will be settled in common stock.

Remarks:

Shares issued for vesting of 1/18/2023 RSU grant and shares disposed in settlement of tax withholding obligations for such RSU vesting.

	/s/ Vincent Liu	01/21/2026
	** 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.

FAQ

What insider transaction did RBB (RBB) executive Vincent Liu report?

EVP Vincent Liu reported the vesting of 1,203 restricted stock units that were settled in common stock on January 16, 2026, along with a related sale of shares to cover tax withholding.

How many RBB Bancorp shares did Vincent Liu acquire and dispose of on January 16, 2026?

Liu acquired 1,203 shares of RBB Bancorp common stock upon RSU vesting at $21.56 per share and disposed of 496 shares at the same price to satisfy tax withholding obligations.

How many RBB Bancorp shares does Vincent Liu own after this Form 4 transaction?

Following the reported transactions, Vincent Liu directly owned 15,601 shares of RBB Bancorp common stock.

What restricted stock units (RSUs) does Vincent Liu still hold at RBB Bancorp?

Liu directly held 1,863 RSUs from a 02/21/2024 grant and 3,670 RSUs from a 03/20/2024 grant, each vesting in three equal annual installments starting one year after the grant date.

How are Vincent Lius restricted stock units at RBB Bancorp settled?

The filing notes that grants of restricted stock units will be settled in common stock of RBB Bancorp once they vest.

What does transaction code M and F mean in Vincent Lius RBB Form 4?

In this filing, code M refers to the acquisition of common shares through the vesting and settlement of restricted stock units, while code F reflects the disposition of shares to satisfy tax withholding obligations related to that vesting.