Michael Anthony Rizzo - 12 Dec 2025 Form 4 Insider Report for FIVE STAR BANCORP (FSBC)

Reporting relationship: EVP & Chief Banking Officer
Issuer ticker: FSBC
Reported as of: 12 Dec 2025
Net transaction value: -$23,896
SEC form: 4
Accepted by SEC: 16 Dec 2025, 12:21:06 UTC
Prior SEC filing: 02 May 2025
Next SEC filing: 26 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael A. Rizzo, by Heather C. Luck, Attorney-in-Fact

Key filing fact

Michael Anthony Rizzo filed Form 4 for FIVE STAR BANCORP (FSBC) on 16 Dec 2025.

Key facts

This page summarizes Michael Anthony Rizzo's Form 4 filing for FIVE STAR BANCORP (FSBC).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 16 Dec 2025, 12:21.

Change

Previous filing in this sequence was filed on 02 May 2025.
Current net transaction value: -$23,896.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001856568 Primary reporting owner

Rizzo Michael Anthony

Relationship: EVP & Chief Banking Officer
Address: C/O FIVE STAR BANCORP, 3100 ZINFANDEL DRIVE, SUITE 100, RANCHO CORDOVA
Signature: /s/ Michael A. Rizzo, by Heather C. Luck, Attorney-in-Fact
Signature date: 15 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FSBC transaction

Common Stock

Sale

Transaction value: $23,896
Shares: -641
Change %: -100%
Price: $37.28
Shares after: 0
Date: 12 Dec 2025
Ownership: See footnote
Footnotes: F1

FSBC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 33,369
Date: 12 Dec 2025
Ownership: By self as trustee
Footnotes: F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Mr. Rizzo's child had direct ownership of 641 shares. Mr. Rizzo's child resides in Mr. Rizzo's household.

Footnote F2

Includes 7,000 shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan (including 5,600 shares which have vested and 1,400 which are scheduled to vest in equal installments over the remainder of a five-year period, provided Mr. Rizzo remains employed by Five Star Bancorp on the respective vesting dates), 6,000 shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan (including 1,200 shares which have vested and 4,800 which are scheduled to vest in equal installments over the remainder of a five-year period, provided Mr. Rizzo remains employed by Five Star Bancorp on the respective vesting dates), and 3,629 shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan which are scheduled to vest in equal installments over a five-year period beginning in 2026, provided Mr. Rizzo remains employed by Five Star Bancorp on the respective vesting dates.

Footnote F3

Shares are held by The Rizzo Family Trust, dated December 4, 2019, for which Mr. Rizzo serves as trustee.