RBB Bancorp (RBB) EVP logs RSU vesting and tax share withholding

Rhea-AI Filing Summary

RBB Bancorp executive vice president Ashley Chang reported equity award activity involving company stock. On 01/16/2026, 575 common shares were issued upon the vesting of restricted stock units at a reported price of $21.56 per share. Of these, 237 shares were disposed of to cover tax withholding obligations, leaving Chang with 2,380 common shares held directly.

Chang also holds derivative awards, including stock options covering 6,000 and 30,000 common shares that vest in three equal annual installments beginning one year after their respective grant dates, and additional restricted stock units covering 1,334 and 3,971 shares. A prior Form 4 was corrected after an administrative error that had overstated RSUs granted on May 8, 2025 and omitted certain transactional details.

Insider Trade Summary

575 shares exercised/converted

Mixed 7 txns

Insider Chang Ashley

Role EVP

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	575	$0.00	--
Exercise	Common Stock, No Par Value	575	$21.56	$12K
Tax Withholding	Common Stock, No Par Value	237	$21.56	$5K
holding	Option (right to buy)	--	--	--
holding	Option (right to buy)	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct); Common Stock, No Par Value — 2,617 shares (Direct); Option (right to buy) — 6,000 shares (Direct)

Footnotes (1)

1. These options vest in three equal annual installments beginning one year after the 01/22/2020 date of grant. These options vest in three equal annual installments beginning one year after the 01/21/2021 date of grant. There will be no expiration date once restricted stock units vest. These restricted stock units vest in three equal annual installments beginning one year after the 01/18/2023 date of grant. These restricted stock units vest in three equal annual installments beginning one year after the 02/21/2024 date of grant. These restricted stock units vest in four equal annual installments beginning one year after the 05/08/2025 date of grant. 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.

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

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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^*

Chang Ashley

(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		575	A	$21.56	2,617	D
Common Stock, No Par Value	01/16/2026		F		237	D	$21.56	2,380	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
Option (right to buy)	$20.55							(1)	01/22/2030	Common Stock	6,000		6,000	D
Option (right to buy)	$17.74							(2)	01/21/2031	Common Stock	30,000		30,000	D
Restricted Stock Units	$0	01/16/2026		M			575	(4)	(3)	Common Stock(7)	575	$0	0	D
Restricted Stock Units	$0.0000							(5)	(3)	Common Stock(7)	1,334		1,334	D
Restricted Stock Units	$0.0000							(6)	(3)	Common Stock(7)	3,971(7)		3,971(7)	D

Explanation of Responses:

1. These options vest in three equal annual installments beginning one year after the 01/22/2020 date of grant.

2. These options vest in three equal annual installments beginning one year after the 01/21/2021 date of grant.

3. There will be no expiration date once restricted stock units vest.

4. These restricted stock units vest in three equal annual installments beginning one year after the 01/18/2023 date of grant.

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

6. These restricted stock units vest in four equal annual installments beginning one year after the 05/08/2025 date of grant.

7. 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/ Ashley Chang	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 did RBB (RBB) executive Ashley Chang report in this Form 4?

EVP Ashley Chang reported equity award activity, including the vesting of restricted stock units that resulted in the issuance of 575 shares of RBB Bancorp common stock on 01/16/2026, along with related tax withholding share disposals.

How many RBB Bancorp shares does Ashley Chang own after the 01/16/2026 transactions?

After the reported transactions on 01/16/2026, Ashley Chang directly beneficially owns 2,380 shares of RBB Bancorp common stock, as disclosed in Table I.

How many RBB Bancorp shares vested and how many were withheld for taxes?

On 01/16/2026, 575 shares of common stock were issued upon RSU vesting at a reported price of $21.56 per share. Of these, 237 shares were disposed of under transaction code F to satisfy tax withholding obligations, consistent with the remarks.

What derivative awards in RBB Bancorp does Ashley Chang hold?

Chang holds options to buy 6,000 common shares at an exercise price of $20.55 expiring on 01/22/2030, and options to buy 30,000 shares at $17.74 expiring on 01/21/2031. In addition, Chang holds restricted stock units covering 1,334 and 3,971 shares, which vest in multi-year installments after their grant dates.

What do transaction codes M and F mean in Ashley Chang’s RBB Form 4?

Transaction code M reflects the conversion of restricted stock units into 575 shares of common stock on 01/16/2026. Code F reflects the disposition of 237 shares at $21.56 per share to cover tax withholding on that RSU vesting.

Was there any correction related to earlier RSU grants for Ashley Chang at RBB Bancorp?

Yes. A footnote explains that on May 12, 2025 a prior Form 4 contained an administrative error that overstated the RSUs granted on May 8, 2025 and omitted information from Table II. That Form 4 was amended and clarified that RSU grants will be settled in common stock.