UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): ~~July~~October 2314, 2025

FIVE STAR BANCORP

(Exact Name of Registrant as Specified in Charter)

California

001-40379

75-3100966

(State or Other Jurisdiction

of Incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

3100 Zinfandel Drive, Suite 100, Rancho Cordova, California, 95670

(Address of Principal Executive Offices, and Zip Code)

(916) 626-5000

Registrant’s Telephone Number, Including Area Code

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):


			☐			Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


			☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)


			☐			Pre-commencement communication pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


			☐			Pre-commencement communication pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, no par value per share	FSBC	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company ☑

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition

On July 23, 2025, Five Star Bancorp (the “Company”) issued a press release announcing its results of operations and financial condition for the quarter ended June 30, 2025. A copy of the press release is attached to this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

This information (including Exhibit 99.1) is being furnished under Item 2.02 hereof and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and such information shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 7.01 Regulation FD Disclosure

~~The~~On ~~Company is conducting an earnings call on July~~October 2414, 2025, atFive ~~10:00~~Star AMBancorp ~~PT/1:00~~(the PM“Company”) ETissued toa ~~discuss~~press ~~its~~release ~~second~~announcing ~~quarter~~the ~~2025~~anticipated ~~financial~~dates ~~results. A copy~~ of ~~the~~its ~~investor presentation to be used during the~~ earnings ~~call~~release isand ~~attached~~webcast toreporting ~~this~~its ~~Current~~financial ~~Report~~results onfor ~~Form~~the ~~8-K~~third asquarter ~~Exhibit~~ended ~~99.2~~September 30, ~~and is incorporated herein by reference~~2025.

~~This~~A ~~information~~copy ~~(including Exhibit 99.2) is being furnished under Item 7.01 hereof and shall not be deemed “filed” for purposes~~ of ~~Section 18 of~~ the ~~Exchange Act~~October 14, or2025 ~~otherwise~~press ~~subject~~release tois ~~the~~furnished ~~liabilities of that section, and such information shall not be deemed incorporated by reference into any filing under the Securities Act, or the Exchange Act, except~~ as ~~shall~~Exhibit be99.1 ~~expressly~~to ~~set~~this ~~forth~~Current byReport ~~specific~~on ~~reference~~Form ~~in such filing~~8-K.

This information (including Exhibit 99.1) is being furnished under Item 7.01 hereof and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and such information shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits

Number									Description
99.1									Press Release dated ~~July~~October 2314, 2025
99.2									Second Quarter 2025 Investor Presentation, dated July 24, 2025
104									Cover Page Interactive Data File (embedded within the Inline XBRL)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	FIVE STAR BANCORP
	By:	/s/ Heather C. Luck
		Name: Heather C. Luck
		Title: Executive Vice President and Chief Financial Officer
Date: July 23, 2025
Date: October 14, 2025

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