FSBC executive grants 905 shares, sells 867 shares

FIVE STAR BANCORP SVP and Chief Regulatory Officer Michael E. Lee reported two indirect transactions in common stock held by The Michael E. Lee & Kaylin M. Fadel-Lee Family Revocable Trust.

Rhea-AI Filing Summary

FIVE STAR BANCORP SVP and Chief Regulatory Officer Michael E. Lee reported two indirect transactions in common stock held by The Michael E. Lee & Kaylin M. Fadel-Lee Family Revocable Trust. He received a grant of 905 restricted shares at no cost under the 2021 Equity Incentive Plan, which vest in equal installments over five years if he remains employed. On the same date, the trust sold 867 shares in an open-market transaction at $41.23 per share. Following these transactions, the trust’s indirect holdings stood at 33,669 shares of common stock.

Insider Trade Summary

Net Seller: 867 shares

Net Sell 2 txns

Insider Lee Michael Eugene

Role SVP, Chief Regulatory Officer

Sold 867 shs ($36K)

Type	Security	Shares	Price	Value
Sale	Common Stock	867	$41.23	$36K
Grant/Award	Common Stock	905	$0.00	$0.00

Holdings After Transaction: Common Stock — 33,669 shares (Indirect, By self as trustee)

Footnotes (3)

1. F1. Includes 6,000 shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan (including 2,400 shares which have vested and 3,600 which are scheduled to vest in equal installments over the remainder of a five-year period, provided Mr. Lee remains employed by Five Star Bancorp on the respective vesting dates) and 907 shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan (including 181 shares which have vested and 726 which are scheduled to vest in equal installments over the remainder of a five-year period, provided Mr. Lee remains employed by Five Star Bancorp on the respective vesting dates).
2. F2. Shares are held by The Michael E. Lee & Kaylin M. Fadel-Lee Family Revocable Trust, for which Mr. Lee serves as a trustee.
3. F3. Granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan. The award of restricted stock vests annually in equal installments over five years, provided Mr. Lee, the reporting person, remains employed by Five Star Bancorp on the respective vesting dates.

Key Figures

Restricted stock grant: 905 shares Open-market sale: 867 shares at $41.23/share Holdings after transactions: 32,764 shares +2 more

5 metrics

Restricted stock grant 905 shares Common Stock grant on 2026-05-21 at $0.00

Open-market sale 867 shares at $41.23/share Common Stock sale on 2026-05-21

Holdings after transactions 32,764 shares Indirect holdings by family trust after 2026-05-21

Prior equity award 6,000 shares Granted under 2021 Equity Incentive Plan; partially vested, remainder vest over five years

Additional equity award 907 shares Granted under 2021 Equity Incentive Plan; partially vested, remainder vest over five years

Key Terms

restricted stock, Five Star Bancorp 2021 Equity Incentive Plan, open-market sale, Family Revocable Trust

4 terms

restricted stock financial

"The award of restricted stock vests annually in equal installments over five years"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Five Star Bancorp 2021 Equity Incentive Plan financial

"Granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan"

open-market sale financial

"Sale in open market or private transaction"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Family Revocable Trust financial

"held by The Michael E. Lee & Kaylin M. Fadel-Lee Family Revocable Trust"

FAQ

What insider transactions did FSBC executive Michael E. Lee report?

Michael E. Lee reported a grant of 905 restricted common shares and an open-market sale of 867 common shares. Both transactions were indirect through a family revocable trust where he serves as trustee and relate to FIVE STAR BANCORP stock.

At what price were the FIVE STAR BANCORP (FSBC) shares sold in this Form 4?

The reported sale involved 867 shares of FIVE STAR BANCORP common stock at $41.23 per share. This was an open-market transaction executed indirectly through a family revocable trust, where Michael E. Lee is trustee and the reporting person.

How many FSBC shares did Michael E. Lee hold after these transactions?

After the reported grant and sale, indirect holdings totaled 32,764 shares of FIVE STAR BANCORP common stock. These shares are held by The Michael E. Lee & Kaylin M. Fadel-Lee Family Revocable Trust, for which he serves as trustee.

What are the terms of the 905-share FSBC restricted stock grant to Michael E. Lee?

The 905-share award was granted under the Five Star Bancorp 2021 Equity Incentive Plan. It vests annually in equal installments over five years, provided Michael E. Lee remains employed by FIVE STAR BANCORP on each applicable vesting date.

How do existing FSBC equity awards for Michael E. Lee vest over time?

Footnotes state 6,000 shares and 907 shares were granted under the 2021 Equity Incentive Plan, with portions already vested and the remaining shares vesting in equal installments over a five-year period, contingent on continued employment at FIVE STAR BANCORP.

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Accepted by SEC EDGAR 05/26/2026 - 04:09 PM Learn about SEC filing dates

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

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^*

Lee Michael Eugene

(Last) (First) (Middle)

C/O FIVE STAR BANCORP

3100 ZINFANDEL DRIVE, SUITE 100

(Street)

RANCHO CORDOVA CALIFORNIA 95670

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Regulatory Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

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	05/21/2026		S		867	D	$41.23	32,764(1)	I	By self as trustee(2)
Common Stock	05/21/2026		A		905(3)	A	$0	33,669(1)	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. Includes 6,000 shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan (including 2,400 shares which have vested and 3,600 which are scheduled to vest in equal installments over the remainder of a five-year period, provided Mr. Lee remains employed by Five Star Bancorp on the respective vesting dates) and 907 shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan (including 181 shares which have vested and 726 which are scheduled to vest in equal installments over the remainder of a five-year period, provided Mr. Lee remains employed by Five Star Bancorp on the respective vesting dates).

2. Shares are held by The Michael E. Lee & Kaylin M. Fadel-Lee Family Revocable Trust, for which Mr. Lee serves as a trustee.

3. Granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan. The award of restricted stock vests annually in equal installments over five years, provided Mr. Lee, the reporting person, remains employed by Five Star Bancorp on the respective vesting dates.

Remarks:

	/s/ Michael E. Lee, by Heather C. Luck, Attorney-in-Fact	05/26/2026
	** 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)