RBB Bancorp (RBB) EVP reports RSU vesting and tax share sale

Rhea-AI Filing Summary

RBB Bancorp executive vice president Huang Tsu Te reported an equity award vesting and related share movements. On January 16, 2026, 659 shares of common stock were issued upon the exercise of restricted stock units at $21.56 per share, increasing his direct holdings to 15,563 shares. On the same date, 272 shares of common stock were disposed of at $21.56 per share to cover tax withholding, leaving 15,291 common shares held directly.

Following these transactions, Huang continues to hold restricted stock units that will settle in common stock, including 1,487 RSUs from a February 21, 2024 grant and 2,681 RSUs from a May 8, 2025 grant, each vesting in scheduled annual installments. A prior Form 4 filed on May 12, 2025 contained an administrative error that overstated the May 8, 2025 RSU grant and omitted certain Table II details, and has since been amended.

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^*

Huang Tsu Te

(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		659	A	$21.56	15,563	D
Common Stock, No Par Value	01/16/2026		F		272	D	$21.56	15,291	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	$21.56	01/16/2026		M			659	(2)	(1)	Common Stock(5)	659	$0	0	D
Restricted Stock Units	$0.0000							(3)	(1)	Common Stock(5)	1,487		1,487	D
Restricted Stock Units	$0.0000							(4)	(1)	Common Stock(5)	2,681(5)		2,681(5)	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 four equal annual installments beginning one year after the 05/08/2025 date of grant.

5. On May 12, 2025 due to an administrative error, the Reporting Person filed a Form 4 which inadvertently omitted information from the transactional columns in Table II and overstated the amount of RSUs granted to the Reporting Person on May 8, 2025. The Form 4 has also been amended 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/ Tsu Te Huang	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).
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FAQ

What insider transaction did RBB (RBB) report for EVP Huang Tsu Te?

EVP Huang Tsu Te reported a restricted stock unit vesting that resulted in the issuance of 659 shares of RBB Bancorp common stock on January 16, 2026, along with a related tax withholding share disposition.

How many RBB Bancorp shares does EVP Huang Tsu Te hold after the January 16, 2026 Form 4?

After the reported transactions on January 16, 2026, EVP Huang Tsu Te directly holds 15,291 shares of RBB Bancorp common stock.

What was the purpose of the 272 RBB Bancorp shares disposed of on January 16, 2026?

The filing states that 272 shares of RBB Bancorp common stock were disposed of on January 16, 2026 to settle tax withholding obligations related to the vesting of the January 18, 2023 RSU grant.

At what price were the reported RBB Bancorp share transactions executed?

Both the 659 shares issued and the 272 shares disposed of on January 16, 2026 were reported at a price of $21.56 per share.

What RSU awards does EVP Huang Tsu Te still hold at RBB Bancorp?

Following the reported transactions, EVP Huang Tsu Te holds restricted stock units that will be settled in common stock, including 1,487 RSUs from a February 21, 2024 grant and 2,681 RSUs from a May 8, 2025 grant, which vest in scheduled annual installments.

Did the Form 4 mention any correction to prior RBB Bancorp RSU disclosures?

Yes. The filing notes that a May 12, 2025 Form 4 had an administrative error that overstated the May 8, 2025 RSU grant and omitted information from Table II, and that this earlier Form 4 has been amended and now clarifies RSU grants will be settled in common stock.