Donna Lucas of Five Star Bancorp (FSBC) receives 974-share equity grant

Rhea-AI Filing Summary

Five Star Bancorp director Donna Lucas reported an equity grant of common stock. On January 29, 2026, 974 shares of Five Star Bancorp (FSBC) common stock were awarded at a price of $0 per share, increasing her indirectly held position to 13,118 shares.

The award was granted under the Five Star Bancorp 2021 Equity Incentive Plan, with all 974 shares scheduled to vest on December 31, 2026, provided she continues to serve as a director through that date. The shares are held in the Lucas Family Trust, for which Ms. Lucas serves as trustee.

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^*

Lucas Donna

(Last) (First) (Middle)

C/O FIVE STAR BANCORP

3100 ZINFANDEL DRIVE, SUITE 100

(Street)

RANCHO CORDOVA CA 95670

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FIVE STAR BANCORP [ FSBC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/29/2026

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	01/29/2026		A		974(1)	A	$0	13,118	I	By self as trustee(2)

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

Explanation of Responses:

1. Granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan with all shares scheduled to vest on December 31, 2026, provided the reporting person, Ms. Lucas, remains as a director with Five Star Bancorp on that date.

2. Shares are held in the Lucas Family Trust dated September 4, 2002, for which Ms. Lucas serves as a trustee.

Remarks:

	/s/ Donna L. Lucas, by Heather C. Luck, Attorney-in-Fact	02/02/2026
	** 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 FSBC director Donna Lucas report?

Donna Lucas reported receiving 974 shares of Five Star Bancorp common stock at $0 per share. The grant was made under the 2021 Equity Incentive Plan and is scheduled to vest in full on December 31, 2026, subject to continued board service.

When do Donna Lucas’s newly granted FSBC shares vest?

All 974 granted shares are scheduled to vest on December 31, 2026. Vesting requires that Ms. Lucas remain a director of Five Star Bancorp through that date, making this a time-based service award rather than immediately unrestricted stock.

How many FSBC shares does Donna Lucas report owning after this transaction?

After the reported grant, Donna Lucas reports beneficial ownership of 13,118 shares of Five Star Bancorp common stock. These shares are held indirectly through the Lucas Family Trust, where she serves as trustee, as disclosed in the filing footnotes.

At what price were the new FSBC shares granted to Donna Lucas?

The 974 Five Star Bancorp shares were granted at a reported price of $0 per share. This reflects a stock-based compensation award granted under the company’s 2021 Equity Incentive Plan rather than an open-market purchase for cash.

How are Donna Lucas’s FSBC shares held according to the Form 4?

The filing states that the shares are held in the Lucas Family Trust dated September 4, 2002. Ms. Lucas serves as trustee of this trust, and the Form 4 categorizes her ownership as indirect, noted as “By self as trustee.”

What equity plan was used for Donna Lucas’s FSBC stock award?

The shares were granted under the Five Star Bancorp 2021 Equity Incentive Plan. This plan is used to deliver equity compensation to eligible participants, and in this case provides Ms. Lucas a time-based award contingent on continued service as a director.