Five Star Bancorp Q3 earnings rise 34.05% to $21.9M

Q: How much did FSBC earn in Q3 2026?

Five Star Bancorp reported net income of $21.9 million for the three months ended September 30, 2026, compared with $16.3 million in the year-earlier quarter and $19.4 million in the prior quarter.

Q: How much did FSBC raise in its Q3 2026 stock offering?

The underwritten public offering of 3,133,750 common shares generated approximately $130.0 million in net proceeds, after approximately $7.3 million in underwriting discounts and commissions and $0.6 million in offering expenses.

Q: When will FSBC pay its next dividend?

Five Star Bancorp expects to pay the declared $0.25-per-share cash dividend on November 9, 2026, to shareholders of record as of November 2, 2026; the board declared it on October 15, 2026.

Average loan yield was 6.14%, and the average cost of interest-bearing deposits was 2.91% in third-quarter 2026.

Filing Impact

(High)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

How Sentiment works How the balance works

Form Type

8-K

Rhea-AI Filing Summary

Five Star Bancorp (FSBC) reported third-quarter 2026 net income of $21.9 million, compared with $16.3 million in the year-earlier quarter and $19.4 million in the prior quarter. Net interest income was $50.9 million, up 29.42% year over year, and net interest margin was 3.69%, versus 3.56%. Basic earnings per share were $0.92, compared with $0.77 a year earlier.

Loans held for investment rose 21.02% year over year to $4.704 billion. The completed underwritten public offering of 3,133,750 common shares generated approximately $130.0 million in net proceeds; common equity Tier 1 capital was 12.52% on September 30, 2026, versus 9.97% on June 30, 2026. Non-interest income fell 13.84% year over year to $1.694 million, while non-interest expense rose 24.19% year over year to $20.591 million. Nonperforming loans were $13.3 million, or 0.28% of loans, on September 30, 2026, versus $3.1 million and 0.08% on December 31, 2025; the increase reflected one $11.4 million Community Reinvestment Act-related credit placed on nonaccrual in the second quarter. The board declared a $0.25-per-share dividend, which the company expects to pay on November 9, 2026, to shareholders of record as of November 2, 2026.

2 points · 0 major

How this balance works

Rhea-AI gives every point it takes from this document a weight. Minor counts 1, Moderate 3 and Major 9, so one Major point outweighs several Minor ones. The bar adds up the weights on each side, and when neither side holds more than 65% of the total the balance reads Mixed.

It reads the document as published, with the same rules for every company, and it does not look at what the market expected or at how the stock traded, so a point can be objectively good on a day the stock falls.

Rhea-AI Sentiment measures something else, the tone of the wording.

How the balance works How Sentiment works

0 major · 1 point

How the balance works

Positive

Moderate pointNet income rose 34.05% year over year to $21.9 million.
Moderate pointNet interest income increased 29.42% year over year to $50.9 million.

Negative

Minor pointNon-interest income declined 13.84% year over year to $1.694 million.

Filing Explained

The third-quarter offering was completed: Five Star Bancorp issued 3,133,750 common shares, and shares outstanding rose from 21,402,864 on June 30, 2026 to 24,536,614 on September 30, 2026; the added shares reduce existing holders’ percentage ownership.

8-K Event Classification

3 items: 2.02, 7.01, 9.01

3 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

Key Figures

Net income: $21.9 million Net interest income: $50.9 million Basic earnings per common share: $0.92 per share +5 more

8 metrics

Net income $21.9 million Three months ended September 30, 2026; up 34.05% year over year

Net interest income $50.9 million Three months ended September 30, 2026; up 29.42% year over year

Basic earnings per common share $0.92 per share Three months ended September 30, 2026; $0.77 in the year-earlier quarter

Net interest margin 3.69% Three months ended September 30, 2026; 3.56% in the year-earlier quarter

Non-interest income $1.694 million Three months ended September 30, 2026; down 13.84% year over year

Net proceeds from underwritten public offering Approximately $130.0 million Offering completed during the three months ended September 30, 2026

Common equity Tier 1 capital ratio 12.52% As of September 30, 2026; 9.97% as of June 30, 2026

Nonperforming loans $13.3 million; 0.28% of loans held for investment As of September 30, 2026; $3.1 million and 0.08% as of December 31, 2025

Key Terms

Net interest margin, Common equity Tier 1 capital ratio, Current Expected Credit Loss (“CECL”), Nonperforming loans, +1 more

5 terms

Net interest margin financial

"Net interest margin totaled 3.69%"

Net interest margin measures how much a bank earns from lending and investing compared with what it pays for funding, expressed as a percentage of its interest-earning assets. Think of it like a grocery store’s markup: it shows the gap between buying cost and selling price per dollar of goods — here, the cost is interest paid and the sale is interest received. Investors watch it because a higher margin usually means a bank is more profitable and better at managing interest rate and credit conditions.

Common equity Tier 1 capital ratio financial

"common equity Tier 1 capital ratio of 12.52%"

A bank’s common equity tier 1 (CET1) capital ratio measures the size of its strongest loss-absorbing capital—mainly common shares and retained earnings—relative to the bank’s assets after adjusting those assets for how risky they are (riskier loans count more). Think of it as the safety cushion compared with the weight of risky business; investors use it to judge a bank’s ability to survive losses, meet rules, and sustain dividends or growth.

Current Expected Credit Loss (“CECL”) technical

"annual Current Expected Credit Loss (“CECL”) model refresh"

Nonperforming loans financial

"The Company’s nonperforming loans increased from $3.1 million to $13.3 million"

Nonperforming loans are loans on which borrowers have stopped making the scheduled interest or principal payments for an extended period (commonly 90 days or more) or are otherwise in serious danger of default. Think of them as IOUs that aren’t being repaid: they tie up a lender’s money, reduce future interest income, and force the lender to hold extra reserves or take losses. For investors, a rising share of nonperforming loans signals weakening credit quality, higher potential losses, and greater risk to a bank’s profitability and capital.

Wholesale deposits financial

"wholesale deposits as brokered deposits and California Time Deposit Program deposits"

Earnings Snapshot

Net income: $21.9 million

Three months ended September 30, 2026

Net income $21.9 million +34.05% year over year

Net interest income $50.9 million +29.42% year over year

Basic earnings per common share $0.92 per share +19.48% year over year

Net interest margin 3.69% +13 basis points year over year

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How much did FSBC earn in Q3 2026?

Five Star Bancorp reported net income of $21.9 million for the three months ended September 30, 2026, compared with $16.3 million in the year-earlier quarter and $19.4 million in the prior quarter.

How much did FSBC raise in its Q3 2026 stock offering?

The underwritten public offering of 3,133,750 common shares generated approximately $130.0 million in net proceeds, after approximately $7.3 million in underwriting discounts and commissions and $0.6 million in offering expenses.

When will FSBC pay its next dividend?

Five Star Bancorp expects to pay the declared $0.25-per-share cash dividend on November 9, 2026, to shareholders of record as of November 2, 2026; the board declared it on October 15, 2026.

Why did FSBC's nonperforming loans increase?

The increase reflected one Community Reinvestment Act-related credit placed on nonaccrual during the three months ended June 30, 2026. The loan balance was $11.4 million at September 30, 2026, and the company said it remained well secured by collateral with an appraised value that meaningfully exceeded its carrying amount.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/27/2026 - 09:44 AM EDT Accepted by SEC EDGAR 10/27/2026 - 09:43 AM EDT

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): October 26, 2026

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 October 26, 2026, Five Star Bancorp (the “Company”) issued a press release announcing its results of operations and financial condition for the quarter ended September 30, 2026. 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 Company is conducting an earnings call on October 27, 2026 at 10:00 AM PT/1:00 PM ET to discuss its third quarter 2026 financial results. A copy of the investor presentation to be used during the earnings call is attached to this Current Report on Form 8-K as Exhibit 99.2 and is incorporated herein by reference.

This information (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, 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, 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 October 26, 2026
99.2									Third Quarter 2026 Investor Presentation, dated October 27, 2026
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: October 27, 2026


PRESS RELEASE			FOR IMMEDIATE RELEASE

Five Star Bancorp Announces Third Quarter 2026 Results

RANCHO CORDOVA, CA, October 26, 2026 (GLOBE NEWSWIRE) – Five Star Bancorp (Nasdaq: FSBC) (“Five Star” or the “Company”), a holding company that operates through its wholly owned banking subsidiary, Five Star Bank (the “Bank”), today reported net income of $21.9 million for the three months ended September 30, 2026, as compared to $19.4 million for the three months ended June 30, 2026 and $16.3 million for the three months ended September 30, 2025.

Third Quarter Highlights

Performance and operating highlights for the Company for the periods noted below included the following:


	Three months ended
(in thousands, except per share and share data)	September 30, 2026			June 30, 2026			September 30, 2025
Return on average assets (“ROAA”)	1.55		%	1.49		%	1.44		%
Return on average equity (“ROAE”)	15.04		%	16.67		%	15.35		%
Pre-tax income	$	29,529		$	26,089		$	22,234
Pre-tax, pre-provision income(1)	$	32,029		$	28,339		$	24,734
Net income	$	21,909		$	19,399		$	16,344
Basic earnings per common share	$	0.92		$	0.91		$	0.77
Diluted earnings per common share	$	0.92		$	0.91		$	0.77
Weighted average basic common shares outstanding	23,620,369			21,273,902			21,231,563
Weighted average diluted common shares outstanding	23,697,397			21,338,903			21,281,818
Shares outstanding at end of period	24,536,614			21,402,864			21,367,387

(1) See the section entitled “Non-GAAP Reconciliation (Unaudited)” for a reconciliation of this non-GAAP financial measure.

James E. Beckwith, President and Chief Executive Officer, commented:

“In the third quarter of 2026, Five Star raised approximately $130.0 million in net proceeds through an underwritten public offering of 3,133,750 shares of common stock, expanding our capacity for organic growth and strategic investment. We also strengthened our California presence with the opening of a new branch in Lodi, a new Calabasas administrative office, and four key hires in Palo Alto, bringing our high-tech, high-touch relationship-based banking experience to more clients.

The third quarter of 2026 delivered steadfast results: net income rose to $21.9 million from $19.4 million in the second quarter of 2026, and net interest income increased $4.8 million, or 11%, to $50.9 million compared to the same period. Net interest margin improved six basis points to 3.69%, the efficiency ratio improved to 39.13% from 40.91% in the second quarter of 2026, and basic earnings per share reached $0.92, up $0.01 from the second quarter of 2026 and $0.15 from the third quarter of 2025.

Total loans held for investment grew $184.5 million, or 4% (approximately 16% annualized), while non-wholesale deposits increased $75.1 million, or 2% (approximately 7% annualized) and wholesale deposits decreased $50.0 million, or 20% (approximately 80% annualized). We also declared a $0.25 per share cash dividend, $0.05 more than those declared in 2025, reinforcing our commitment to shareholder value.

Five Star Bank’s success reflects the strength of our team and the value of authentic, relationship-based service. Our technology, operating discipline, conservative underwriting, strong credit quality, and prudent portfolio management position us to create lasting value for customers, employees, communities, and shareholders. We thank

our employees for keeping Five Star Bank a safe, trusted, and steadfast banking partner as we enter the fourth quarter of 2026.”

Financial highlights as of and during the three months ended September 30, 2026 included the following:

•The Company completed an underwritten public offering of 3,133,750 shares of common stock during the three months ended September 30, 2026, with net proceeds of approximately $130.0 million after deducting underwriting discounts and commissions of approximately $7.3 million, and offering expenses of approximately $0.6 million. The transaction strengthened the Company’s capital base and positioned it for continued organic balance sheet growth, with a common equity Tier 1 capital ratio of 12.52% as of September 30, 2026, as compared to 9.97% as of June 30, 2026. The Bank continues to meet all requirements to be considered “well-capitalized” under applicable regulatory guidelines.

•Basic earnings per share reached $0.92 for the three months ended September 30, 2026, an increase of $0.01 from the second quarter of 2026. Weighted average basic common shares outstanding for the three months ended September 30, 2026 increased by 2,346,467, or 11.03%, as compared to the second quarter of 2026 due to the underwritten public offering. As compared to the three months ended September 30, 2025, basic earnings per share increased $0.15, while weighted average basic common shares outstanding increased by 2,388,806, or 11.25%, as compared to the third quarter of 2025 due to the underwritten public offering.

•Total deposits increased by $25.1 million, or 0.52%, during the three months ended September 30, 2026, with growth in non-wholesale deposits exceeding declines in wholesale deposits. The Company defines wholesale deposits as brokered deposits and California Time Deposit Program deposits. During the three months ended September 30, 2026, non-wholesale deposits increased by $75.1 million, or 1.65%, and wholesale deposits decreased by $50.0 million, or 20.00%.

•The number of Business Development Officers increased from 45 at June 30, 2026 to 50 at September 30, 2026.

•Cash and cash equivalents were $679.5 million, representing 14.08% of total deposits at September 30, 2026, as compared to 14.27% at June 30, 2026.

•Consistent, disciplined management of expenses contributed to our efficiency ratio of 39.13% for the three months ended September 30, 2026, as compared to 40.91% for the three months ended June 30, 2026 and 40.13% for the three months ended September 30, 2025.

•Net interest margin for the three months ended September 30, 2026 expanded six basis points to 3.69% from 3.63% for the three months ended June 30, 2026, primarily reflecting growth in higher-yielding loans and an increase in the yield on interest-earning assets, partially offset by higher deposit funding costs. On a year-over-year basis, net interest margin expanded 13 basis points from 3.56% for the three months ended September 30, 2025 to 3.69% for the three months ended September 30, 2026, supported by balance sheet growth and lower deposit funding costs following three Federal Reserve rate cuts that began in September 2025, partially offset by lower yields on interest-earning assets. The effective federal funds rate declined 21 basis points, from 4.09% as of September 30, 2025 to 3.88% as of September 30, 2026.

•Other comprehensive loss was $3.0 million during the three months ended September 30, 2026, as compared to other comprehensive income of $0.7 million for the three months ended June 30, 2026 and other comprehensive income of $2.1 million for the three months ended September 30, 2025. Unrealized losses, net of tax effect, on available-for-sale securities were $12.4 million as of September 30, 2026, as compared to $9.4 million as of June 30, 2026 and $9.9 million as of September 30, 2025. Total carrying value of held-to-maturity and available-for-sale securities represented 0.04% and 1.52% of total interest-earning assets, respectively, as of September 30, 2026.

•Loan and deposit growth as of the dates provided below was as follows:


(in thousands)	September 30, 2026		June 30, 2026		$ Change		% Change
Loans held for investment	$	4,704,215	$	4,519,681	$	184,534	4.08	%
Non-interest-bearing deposits	1,210,488		1,174,406		36,082		3.07	%
Interest-bearing deposits	3,614,040		3,624,977		(10,937)		(0.30)	%

(in thousands)	September 30, 2026		September 30, 2025		$ Change		% Change
Loans held for investment	$	4,704,215	$	3,887,259	$	816,956	21.02	%
Non-interest-bearing deposits	1,210,488		1,059,082		151,406		14.30	%
Interest-bearing deposits	3,614,040		3,044,356		569,684		18.71	%

•The ratio of nonperforming loans to loans held for investment at period end decreased from 0.30% at June 30, 2026 to 0.28% at September 30, 2026.

•The Company’s Board of Directors declared, and the Company subsequently paid, a cash dividend of $0.25 per share during the three months ended September 30, 2026. The Company’s Board of Directors declared an additional cash dividend of $0.25 per share on October 15, 2026, which the Company expects to pay on November 9, 2026 to shareholders of record as of November 2, 2026.

Summary Results

Three months ended September 30, 2026, as compared to three months ended June 30, 2026

The Company’s net income was $21.9 million for the three months ended September 30, 2026, as compared to $19.4 million for the three months ended June 30, 2026. Net interest income increased by $4.8 million during the three months ended September 30, 2026, as compared to the three months ended June 30, 2026, primarily reflecting growth in higher-yielding loans and an increase in the yield on interest-earning assets, partially offset by higher deposit funding costs. The provision for credit losses increased by $0.3 million during the three months ended September 30, 2026, as compared to the three months ended June 30, 2026, reflecting loan growth and changes resulting from the annual Current Expected Credit Loss (“CECL”) model refresh. Non-interest income decreased by $0.2 million during the three months ended September 30, 2026, as compared to the three months ended June 30, 2026, primarily due to an overall decline in earnings related to investments in venture-backed funds and lower loan referral income, partially offset by a special FHLB stock dividend. Non-interest expense increased by $1.0 million during the three months ended September 30, 2026, as compared to the three months ended June 30, 2026, primarily due to higher salaries and employee benefits from increased headcount and increased recruiter fees, partially offset by decreases in employee-related expenses, advertising and promotional expenses, and operational losses.

Three months ended September 30, 2026, as compared to three months ended September 30, 2025

The Company’s net income was $21.9 million for the three months ended September 30, 2026, as compared to $16.3 million for the three months ended September 30, 2025. Net interest income increased by $11.6 million during the three months ended September 30, 2026, as compared to the three months ended September 30, 2025, primarily reflecting balance sheet growth and lower deposit funding costs following three Federal Reserve rate cuts that began in September 2025, partially offset by lower yields on interest-earning assets. The provision for credit losses remained constant, reflecting loan growth and changes resulting from the annual CECL model refresh, offset by a decrease in the provision for unfunded commitments. Non-interest income decreased by $0.3 million during the three months ended September 30, 2026, as compared to the three months ended September 30, 2025, primarily reflecting lower fees from swap referrals and an overall decline in earnings related to investments in venture-backed funds. Non-interest expense increased by $4.0 million during the three months ended September 30, 2026, as compared to the three months ended September 30, 2025, driven primarily by higher salaries and employee benefits from increased headcount, along with growth in other operating expenses reflecting continued organizational expansion.

The following is a summary of the components of the Company’s operating results and performance ratios for the periods indicated:


	Three months ended
(in thousands, except per share data)	September 30, 2026			June 30, 2026			$ Change		% Change
Selected operating data:
Net interest income	$	50,926		$	46,083		$	4,843	10.51	%
Provision for credit losses	2,500			2,250			250		11.11	%
Non-interest income	1,694			1,872			(178)		(9.51)	%
Non-interest expense	20,591			19,616			975		4.97	%
Pre-tax income	29,529			26,089			3,440		13.19	%
Provision for income taxes	7,620			6,690			930		13.90	%
Net income	$	21,909		$	19,399		$	2,510	12.94	%
Earnings per common share:
Basic	$	0.92		$	0.91		$	0.01	1.10	%
Diluted	$	0.92		$	0.91		$	0.01	1.10	%
Performance and other financial ratios:
ROAA	1.55		%	1.49		%
ROAE	15.04		%	16.67		%
Net interest margin	3.69		%	3.63		%
Total cost of funds(1)	2.25		%	2.23		%
Efficiency ratio	39.13		%	40.91		%



	Three months ended
(in thousands, except per share data)	September 30, 2026			September 30, 2025			$ Change		% Change
Selected operating data:
Net interest income	$	50,926		$	39,348		$	11,578	29.42	%
Provision for credit losses	2,500			2,500			—		—	%
Non-interest income	1,694			1,966			(272)		(13.84)	%
Non-interest expense	20,591			16,580			4,011		24.19	%
Pre-tax income	29,529			22,234			7,295		32.81	%
Provision for income taxes	7,620			5,890			1,730		29.37	%
Net income	$	21,909		$	16,344		$	5,565	34.05	%
Earnings per common share:
Basic	$	0.92		$	0.77		$	0.15	19.48	%
Diluted	$	0.92		$	0.77		$	0.15	19.48	%
Performance and other financial ratios:
ROAA	1.55		%	1.44		%
ROAE	15.04		%	15.35		%
Net interest margin	3.69		%	3.56		%
Total cost of funds(1)	2.25		%	2.51		%
Efficiency ratio	39.13		%	40.13		%

(1) Total cost of funds reflects the average cost of all funding sources, including both interest-bearing and non-interest-bearing deposits and borrowings.

Balance Sheet Summary


(in thousands)	September 30, 2026		June 30, 2026		$ Change		% Change
Selected financial condition data:
Total assets	$	5,559,618	$	5,377,062	$	182,556	3.40	%
Cash and cash equivalents	679,482		685,074		(5,592)		(0.82)	%
Total loans held for investment	4,704,215		4,519,681		184,534		4.08	%
Total investments	84,158		92,719		(8,561)		(9.23)	%
Total liabilities	4,942,407		4,903,291		39,116		0.80	%
Total deposits	4,824,528		4,799,383		25,145		0.52	%
Subordinated notes, net	74,150		74,114		36		0.05	%
Total shareholders’ equity	617,211		473,771		143,440		30.28	%

•Insured and collateralized deposits were approximately $3.3 billion, representing 68.08% of total deposits as of September 30, 2026, as compared to 65.80% as of June 30, 2026. Net uninsured and uncollateralized deposits were approximately $1.5 billion as of September 30, 2026, decreasing from $1.6 billion at June 30, 2026.

•Non-wholesale deposit balances constituted 95.85% of total deposits as of September 30, 2026, as compared to 94.79% as of June 30, 2026. Deposit relationships of greater than $5 million represented 62.44% of total deposits as of September 30, 2026, as compared to 63.88% as of June 30, 2026, and had an average age of approximately 7.45 years as of September 30, 2026, as compared to 7.39 years as of June 30, 2026.

•Total deposits as of September 30, 2026 were $4.8 billion, an increase of $25.1 million, or 0.52%, from June 30, 2026, comprised of an increase in non-interest-bearing deposits, partially offset by a decrease in interest-bearing deposits.

•Cash and cash equivalents as of September 30, 2026 were $679.5 million, representing 14.08% of total deposits at September 30, 2026, as compared to 14.27% as of June 30, 2026.

•Total liquidity (consisting of cash and cash equivalents as well as unused and immediately available borrowing capacity as set forth below) was approximately $2.5 billion as of September 30, 2026, as compared to $2.3 billion at June 30, 2026.


	September 30, 2026
(in thousands)	Line of Credit		Letters of Credit Issued		Borrowings		Available
Federal Home Loan Bank of San Francisco (“FHLB”) advances	$	1,714,154	$	1,162,000	$	—	$	552,154
Federal Reserve Discount Window	1,110,142		—		—		1,110,142
Correspondent bank lines of credit	185,000		—		—		185,000
Cash and cash equivalents	—		—		—		679,482
Total	$	3,009,296	$	1,162,000	$	—	$	2,526,778


(in thousands)	September 30, 2026		December 31, 2025		$ Change		% Change
Selected financial condition data:
Total assets	$	5,559,618	$	4,754,861	$	804,757	16.92	%
Cash and cash equivalents	679,482		506,851		172,631		34.06	%
Total loans held for investment	4,704,215		4,074,929		629,286		15.44	%
Total investments	84,158		96,889		(12,731)		(13.14)	%
Total liabilities	4,942,407		4,309,029		633,378		14.70	%
Total deposits	4,824,528		4,201,084		623,444		14.84	%
Subordinated notes, net	74,150		74,041		109		0.15	%
Total shareholders’ equity	617,211		445,832		171,379		38.44	%

The increase in total assets from December 31, 2025 to September 30, 2026 was primarily comprised of a $629.3 million increase in total loans held for investment and a $172.6 million increase in cash and cash equivalents. The $629.3 million increase in total loans held for investment between December 31, 2025 and September 30, 2026 was a result of $1.6 billion in loan originations and advances, partially offset by $304.5 million and $633.2 million in loan payoffs and paydowns, respectively. The $629.3 million increase in total loans held for investment included $230.7 million in purchased loans within the consumer section of the loan portfolio. The $172.6 million increase in cash and cash equivalents primarily resulted from $130.0 million in net proceeds from the underwritten public offering (after deducting underwriting discounts and commissions of approximately $7.3 million, and offering expenses of approximately $0.6 million), $59.9 million in net income, and $623.4 million in deposit growth, partially offset by $629.3 million in cash outflows to fund growth in total loans held for investment.

The increase in total liabilities from December 31, 2025 to September 30, 2026 was primarily due to an increase in deposits of $623.4 million. The increase in deposits was largely due to increases in money market, non-interest-bearing, and interest-bearing transaction deposits of $712.6 million, $126.0 million, and $71.5 million, respectively, partially offset by a $296.8 million decrease in time deposits, mainly attributable to a $265.0 million decline in wholesale deposits.

The increase in total shareholders’ equity from December 31, 2025 to September 30, 2026 was primarily a result of $130.0 million of additional common stock outstanding and $59.9 million recognized as net income during the period, partially offset by $16.8 million in cash dividends paid during the period and a $3.2 million increase in accumulated other comprehensive loss.

Net Interest Income and Net Interest Margin

The following is a summary of the components of net interest income for the periods indicated:


	Three months ended
(in thousands)	September 30, 2026			June 30, 2026			$ Change		% Change
Interest and fee income	$	79,174		$	72,327		$	6,847	9.47	%
Interest expense	28,248			26,244			2,004		7.64	%
Net interest income	$	50,926		$	46,083		$	4,843	10.51	%
Net interest margin	3.69		%	3.63		%

	Three months ended
(in thousands)	September 30, 2026			September 30, 2025			$ Change		% Change
Interest and fee income	$	79,174		$	64,845		$	14,329	22.10	%
Interest expense	28,248			25,497			2,751		10.79	%
Net interest income	$	50,926		$	39,348		$	11,578	29.42	%
Net interest margin	3.69		%	3.56		%

The following table shows the components of net interest income and net interest margin for the quarterly periods indicated:


	Three months ended
	September 30, 2026						June 30, 2026						September 30, 2025
(in thousands)	Average Balance		Interest Income/ Expense		Yield/ Rate		Average Balance		Interest Income/ Expense		Yield/ Rate		Average Balance		Interest Income/ Expense		Yield/ Rate
Assets
Interest-earning deposits in banks	$	772,887	$	7,286	3.74	%	$	677,149	$	6,253	3.70	%	$	451,534	$	5,009	4.40	%
Investment securities	90,174		496		2.18	%	93,553		509		2.18	%	96,806		579		2.38	%
Loans held for investment and sale	4,612,608		71,392		6.14	%	4,328,304		65,565		6.08	%	3,831,851		59,257		6.14	%
Total interest-earning assets	5,475,669		79,174		5.74	%	5,099,006		72,327		5.69	%	4,380,191		64,845		5.87	%
Interest receivable and other assets, net	120,299						123,354						110,118
Total assets	$	5,595,968					$	5,222,360					$	4,490,309

Liabilities and shareholders’ equity
Interest-bearing transaction accounts	$	433,005	$	1,782	1.63	%	$	389,136	$	1,297	1.34	%	$	300,642	$	1,194	1.58	%
Savings accounts	150,815		940		2.47	%	143,818		844		2.35	%	130,973		895		2.71	%
Money market accounts	2,829,499		21,729		3.05	%	2,556,482		19,318		3.03	%	1,874,089		15,348		3.25	%
Time accounts	282,857		2,636		3.70	%	396,923		3,623		3.66	%	639,434		6,899		4.28	%
Subordinated notes and other borrowings	74,127		1,161		6.22	%	74,091		1,162		6.29	%	73,981		1,161		6.23	%
Total interest-bearing liabilities	3,770,303		28,248		2.97	%	3,560,450		26,244		2.96	%	3,019,119		25,497		3.35	%
Demand accounts	1,212,088						1,163,991						1,016,560
Interest payable and other liabilities	35,691						31,140						32,210
Shareholders’ equity	577,886						466,779						422,420
Total liabilities & shareholders’ equity	$	5,595,968					$	5,222,360					$	4,490,309

Net interest spread					2.77	%					2.73	%					2.52	%
Net interest income/margin			$	50,926	3.69	%			$	46,083	3.63	%			$	39,348	3.56	%

Net interest income during the three months ended September 30, 2026 increased by $4.8 million, or 10.51%, to $50.9 million, as compared to $46.1 million during the three months ended June 30, 2026. Net interest margin totaled 3.69% for the three months ended September 30, 2026, an increase of six basis points compared to the prior quarter, primarily reflecting growth in higher-yielding loans and an increase in the yield on interest-earning assets, partially offset by higher deposit funding costs. The $4.8 million increase in net interest income is primarily attributable to a $376.7 million, or 7.39%, increase in average interest-earning assets. The average balance of loans increased $284.3 million, or 6.57%, and the average balance of interest-earning deposits in banks increased $95.7 million, or 14.14%. The average yield on interest-earning assets increased five basis points to 5.74%, including a six-basis-point increase in the average loan yield to 6.14%. The increase in interest income was partially offset by a $2.0 million increase in interest expense. The average balance of deposits increased $257.9 million, or 5.55%, combined with a three-basis-point increase in the average cost of deposits. The average balance of non-interest bearing deposits increased $48.1 million, or 4.13%, helping to partially offset the rise in deposit funding costs.

As compared to the three months ended September 30, 2025, net interest income during the three months ended September 30, 2026 increased by $11.6 million, or 29.42%, to $50.9 million from $39.3 million. Net interest margin totaled 3.69% for the three months ended September 30, 2026, an increase of 13 basis points compared to the same quarter of the prior year. The increase primarily reflected balance sheet growth and lower deposit funding costs following three Federal Reserve rate cuts that began in September 2025, partially offset by lower yields on interest-earning assets. The increase in net interest income is primarily attributable to a $14.3 million increase in interest income, mainly due to a $780.8 million, or 20.38%, increase in the average balance of loans and a $321.4 million, or 71.17%, increase in the average balance of interest-earning deposits in banks. The benefit from higher average earning assets was partially offset by a 13-basis-point decrease in the yield on interest-earning assets to 5.74%. The average loan yield remained stable at 6.14%, as the effect of lower rates on repricing loans was offset by loan growth and changes in portfolio mix. This increase in interest income was partially offset by a $2.8 million increase in interest expense, stemming from a $946.6 million, or 23.89%, increase in the average balance of deposits during the three months ended September 30, 2026, moderated by a 25-basis-point decrease in the average cost of deposits compared to the same quarter of the prior year, reflecting deposit repricing following the three Federal Reserve rate cuts that began in September 2025 and an improved funding mix. Further supporting the decreasing average cost of deposits, the average balance of non-interest-bearing deposits increased by $195.5 million, or 19.23%, and brokered deposits decreased from $216.4 million to zero compared to the same period of the prior year.

Loans by Type

The following table provides loan balances, excluding deferred loan fees, by type as of the dates shown:


(in thousands)	September 30, 2026		June 30, 2026
Real estate:
Commercial	$	3,678,924	$	3,597,173
Commercial land and development	2,487		2,507
Commercial construction	122,561		124,053
Residential construction	25,569		21,809
Residential	41,530		41,874
Farmland	57,027		59,900
Commercial:
Secured	313,600		258,736
Unsecured	39,164		41,263
Consumer and other	425,531		374,614
Net deferred loan fees	(2,178)		(2,248)
Total loans held for investment	$	4,704,215	$	4,519,681

Interest-bearing Deposits

The following table provides interest-bearing deposit balances by type as of the dates shown:


(in thousands)	September 30, 2026		June 30, 2026
Interest-bearing transaction accounts	$	415,688	$	500,256
Savings accounts	149,296		147,435
Money market accounts	2,791,209		2,669,295
Time accounts	257,847		307,991
Total interest-bearing deposits	$	3,614,040	$	3,624,977

Asset Quality

Allowance for Credit Losses

At September 30, 2026, the Company’s allowance for credit losses was $49.4 million, as compared to $44.4 million at December 31, 2025. The $5.0 million increase in the allowance is due to a $7.3 million provision for credit losses (excluding a $0.2 million provision for unfunded commitments) recorded during the nine months ended September 30, 2026, partially offset by net charge-offs of $2.3 million, primarily attributable to commercial and industrial loans, during the same period.

A summary of the allowance for credit losses by loan class is as follows:


	September 30, 2026				December 31, 2025
(in thousands)	Amount		% of Total		Amount		% of Total
Real estate:
Commercial	$	28,540	57.79	%	$	25,219	56.77	%
Commercial land and development	92		0.19	%	56		0.13	%
Commercial construction	4,526		9.16	%	4,050		9.12	%
Residential construction	806		1.63	%	213		0.48	%
Residential	461		0.93	%	362		0.82	%
Farmland	432		0.87	%	467		1.05	%
	34,857		70.57	%	30,367		68.37	%
Commercial:
Secured	10,630		21.52	%	11,204		25.23	%
Unsecured	502		1.02	%	482		1.09	%
	11,132		22.54	%	11,686		26.32	%
Consumer and other	3,401		6.89	%	2,356		5.31	%
Total allowance for credit losses	$	49,390	100.00	%	$	44,409	100.00	%

The ratio of allowance for credit losses to loans held for investment was 1.05% at September 30, 2026, as compared to 1.09% at December 31, 2025.

Risk Grades

The Company’s nonperforming loans increased from $3.1 million to $13.3 million between December 31, 2025 and September 30, 2026, increasing the ratio of nonperforming loans to loans held for investment from 0.08% at December 31, 2025 to 0.28% at September 30, 2026. This increase was due to one Community Reinvestment Act-related credit that was originally downgraded during 2025 and placed on non-accrual status during the three months ended June 30, 2026. The balance of the loan was $11.4 million as of September 30, 2026, and it remains well secured by collateral with an appraised value that meaningfully exceeds its carrying amount. This was partially offset by improvements across the remainder of the nonperforming loan portfolio.

The following table presents the Company’s loan portfolio by risk grade as of the dates shown:


(in thousands)	September 30, 2026		December 31, 2025		$ Change		% of Loan Portfolio Outstanding as of September 30, 2026(1)
Pass	$	4,490,670	$	3,915,263	$	575,407	95.41	%
Watch	147,152		101,895		45,257		3.13	%
Special Mention	48,500		37,530		10,970		1.03	%
Substandard	20,071		22,331		(2,260)		0.43	%
Doubtful	—		—		—		—	%
Total loan portfolio outstanding(1)	$	4,706,393	$	4,077,019	$	629,374	100.00	%

(1) Loan portfolio outstanding is total balance of loans outstanding at period end, before deferred loan fees and allowance for credit losses.

Non-interest Income

The following table presents the key components of non-interest income for the periods indicated:


	Three months ended
(in thousands)	September 30, 2026		June 30, 2026		$ Change		% Change
Service charges on deposit accounts	$	148	$	122	$	26	21.31	%


Loan-related fees	472		679		(207)		(30.49)	%
FHLB stock dividends	424		191		233		121.99	%
Earnings on bank-owned life insurance	270		265		5		1.89	%
Other income	380		615		(235)		(38.21)	%
Total non-interest income	$	1,694	$	1,872	$	(178)	(9.51)	%

Loan-related fees. The decrease resulted primarily from a decrease of $0.1 million in loan referral income during the three months ended September 30, 2026, as compared to the three months ended June 30, 2026.

FHLB stock dividends. The increase related primarily to a $0.2 million special cash dividend from the FHLB during the three months ended September 30, 2026 that did not occur during the three months ended June 30, 2026.

Other income. The decrease related primarily to an overall decline in earnings related to investments in venture-backed funds during the three months ended September 30, 2026, as compared to the three months ended June 30, 2026.

The following table presents the key components of non-interest income for the periods indicated:


	Three months ended
(in thousands)	September 30, 2026		September 30, 2025		$ Change		% Change
Service charges on deposit accounts	$	148	$	185	$	(37)	(20.00)	%


Loan-related fees	472		683		(211)		(30.89)	%
FHLB stock dividends	424		329		95		28.88	%
Earnings on bank-owned life insurance	270		209		61		29.19	%
Other income	380		560		(180)		(32.14)	%
Total non-interest income	$	1,694	$	1,966	$	(272)	(13.84)	%

Loan-related fees. The decrease resulted primarily from a decrease of $0.1 million in fees from swap referrals during the three months ended September 30, 2026, as compared to the three months ended September 30, 2025, combined with $0.1 million in rate lock fees and good faith deposits that were forfeited during the three months ended September 30, 2025 and did not reoccur during the three months ended September 30, 2026.

Non-interest Expense

The following table presents the key components of non-interest expense for the periods indicated:


	Three months ended
(in thousands)	September 30, 2026		June 30, 2026		$ Change		% Change
Salaries and employee benefits	$	12,338	$	11,421	$	917	8.03	%
Occupancy and equipment	935		873		62		7.10	%
Data processing and software	1,742		1,709		33		1.93	%
Federal Deposit Insurance Corporation (“FDIC”) insurance	670		585		85		14.53	%
Professional services	1,330		952		378		39.71	%
Advertising and promotional	798		959		(161)		(16.79)	%
Loan-related expenses	319		304		15		4.93	%
Other operating expenses	2,459		2,813		(354)		(12.58)	%
Total non-interest expense	$	20,591	$	19,616	$	975	4.97	%

Salaries and employee benefits. The increase related primarily to: (i) a $0.5 million increase in salaries, benefits, and bonus expense, mainly related to a 4.05% increase in headcount between June 30, 2026 and September 30, 2026; and (ii) a $0.5 million decrease in deferred loan origination costs due to lower loan originations period-over period. This increase was partially offset by a $0.1 million decrease in commissions primarily due to lower loan originations period-over-period.

Professional services. The increase related primarily to: (i) a $0.2 million increase in recruiter fees associated with strategic hiring initiatives; and (ii) a $0.1 million increase in legal fees period-over-period related to legal fees incurred in the ordinary course of business.

Advertising and promotional. The decrease related primarily to lower period-over-period expenses in support of the Bank’s business development activities, including a $0.1 million decrease related to donations, sponsorships, and advertising expenses and a $0.1 million decrease related to business development expenses.

Other operating expenses. The decrease related primarily to: (i) a $0.4 million decrease in employee-related expenses such as travel, conferences, and training; and (ii) a $0.1 million decrease in operational losses, partially offset by a $0.1 million increase in reciprocal deposit network fees resulting from an overall increase in balances carried in the network.

The following table presents the key components of non-interest expense for the periods indicated:


	Three months ended
(in thousands)	September 30, 2026		September 30, 2025		$ Change		% Change
Salaries and employee benefits	$	12,338	$	9,716	$	2,622	26.99	%
Occupancy and equipment	935		700		235		33.57	%
Data processing and software	1,742		1,559		183		11.74	%
FDIC insurance	670		500		170		34.00	%
Professional services	1,330		932		398		42.70	%
Advertising and promotional	798		803		(5)		(0.62)	%
Loan-related expenses	319		317		2		0.63	%
Other operating expenses	2,459		2,053		406		19.78	%
Total non-interest expense	$	20,591	$	16,580	$	4,011	24.19	%

Salaries and employee benefits. The increase related primarily to: (i) a $2.5 million increase in salaries, benefits, and bonus expense, mainly related to a 16.29% increase in headcount between September 30, 2025 and September 30, 2026; and (ii) a $0.5 million increase in commissions primarily due to higher loan originations period-over-period. This increase was partially offset by a $0.4 million increase in deferred loan origination costs due to higher loan originations period-over-period.

Occupancy and equipment. The increase was primarily driven by expenses associated with the Lodi branch office and the Calabasas non-depository office, both opened subsequent to the three months ended September 30, 2025. Additional increases stemmed from the Walnut Creek branch office and the Newport Beach non-depository office, which were only open for a portion of the three months ended September 30, 2025, as compared to the full three months ended September 30, 2026, and the San Francisco branch office, where an expansion project completed in the fourth quarter of 2025 resulted in elevated ongoing expenses.

Data processing and software. The increase was primarily due to: (i) increased usage of our digital banking platform; (ii) higher transaction volumes related to the increased number of loan and deposit accounts; (iii) an increased number of licenses required for new users on our loan origination and documentation system; and (iv) the implementation of enhanced commercial real estate lending analytics and risk assessment software.

FDIC insurance. FDIC insurance expenses is calculated based on the FDIC assessment base, which generally reflects average consolidated total assets less average tangible equity. The increase in FDIC insurance expense was primarily due to a $960.4 million increase in the assessment base period-over-period.

Other operating expenses. The increase related primarily to: (i) a $0.1 million increase in bank charges; (ii) a $0.1 million increase in reciprocal deposit network fees resulting from an overall increase in balances carried in the network; (iii) a $0.1 million increase in armored car and courier services; and (iv) a $0.1 million increase in employee-related expenses such as travel. This increase was partially offset by a $0.1 million decrease in operational losses.

Provision for Income Taxes

Three months ended September 30, 2026, as compared to three months ended June 30, 2026

Provision for income taxes increased by $0.9 million, or 13.90%, for the three months ended September 30, 2026, as compared to the three months ended June 30, 2026, which was primarily due to an increase in taxable income. The effective tax rates were 25.81% and 25.64% for the three months ended September 30, 2026 and June 30, 2026, respectively.

Three months ended September 30, 2026, as compared to three months ended September 30, 2025

Provision for income taxes increased by $1.7 million, or 29.37%, for the three months ended September 30, 2026, as compared to the three months ended September 30, 2025. This increase was primarily driven by an increase in taxable income, partially offset by a $0.2 million benefit recorded during the three months ended September 30,

2026 related to the purchase of transferable tax credits that did not occur during the three months ended September 30, 2025. The effective tax rates were 25.81% and 26.49% for the three months ended September 30, 2026 and September 30, 2025, respectively.

Webcast Details

Five Star Bancorp will host a live webcast for analysts and investors on Tuesday, October 27, 2026 at 1:00 PM ET (10:00 AM PT) to discuss its third quarter financial results. To view the live webcast, visit the “News & Events” section of the Company’s website under “Events” at https://investors.fivestarbank.com/news-events/events. The webcast will be archived on the Company’s website for a period of 90 days.

About Five Star Bancorp

Five Star is a bank holding company headquartered in Rancho Cordova, California. Five Star operates through its wholly owned banking subsidiary, Five Star Bank. The Bank has ten branches in California.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements represent plans, estimates, objectives, goals, guidelines, expectations, intentions, projections, and statements of the Company’s beliefs concerning future events, business plans, objectives, expected operating results, and the assumptions upon which those statements are based. Forward-looking statements include without limitation, any statement that may predict, forecast, indicate, or imply future results, performance, or achievements, and are typically identified with words such as “may,” “could,” “should,” “will,” “would,” “believe,” “anticipate,” “estimate,” “expect,” “aim,” “intend,” “plan,” or words or phrases of similar meaning. The Company cautions that the forward-looking statements are based largely on the Company’s expectations and are subject to a number of known and unknown risks and uncertainties that are subject to change based on factors which are, in many instances, beyond the Company’s control. Such forward-looking statements are based on various assumptions (some of which may be beyond the Company’s control) and are subject to risks and uncertainties, which change over time, and other factors, which could cause actual results to differ materially from those currently anticipated. New risks and uncertainties may emerge from time to time, and it is not possible for the Company to predict their occurrence or how they will affect the Company. If one or more of the factors affecting the Company’s forward-looking information and statements proves incorrect, then the Company’s actual results, performance, or achievements could differ materially from those expressed in, or implied by, forward-looking information and statements contained in this press release. Therefore, the Company cautions you not to place undue reliance on the Company’s forward-looking information and statements. Important factors that could cause actual results to differ materially from those in the forward-looking statements are set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 and Quarterly Reports on Form 10-Q for the three months ended March 31, 2026 and June 30, 2026, in each case under the section entitled “Risk Factors,” and other documents filed by the Company with the Securities and Exchange Commission from time to time.

The Company disclaims any duty to revise or update the forward-looking statements, whether written or oral, to reflect actual results or changes in the factors affecting the forward-looking statements, except as specifically required by law.

Condensed Financial Data (Unaudited)


	Three months ended
(in thousands, except per share and share data)	September 30, 2026		June 30, 2026		September 30, 2025
Revenue and Expense Data
Interest and fee income	$	79,174	$	72,327	$	64,845
Interest expense	28,248		26,244		25,497
Net interest income	50,926		46,083		39,348
Provision for credit losses	2,500		2,250		2,500
Net interest income after provision	48,426		43,833		36,848
Non-interest income:
Service charges on deposit accounts	148		122		185


Loan-related fees	472		679		683
FHLB stock dividends	424		191		329
Earnings on bank-owned life insurance	270		265		209
Other income	380		615		560
Total non-interest income	1,694		1,872		1,966
Non-interest expense:
Salaries and employee benefits	12,338		11,421		9,716
Occupancy and equipment	935		873		700
Data processing and software	1,742		1,709		1,559
FDIC insurance	670		585		500
Professional services	1,330		952		932
Advertising and promotional	798		959		803
Loan-related expenses	319		304		317
Other operating expenses	2,459		2,813		2,053
Total non-interest expense	20,591		19,616		16,580
Income before provision for income taxes	29,529		26,089		22,234
Provision for income taxes	7,620		6,690		5,890
Net income	$	21,909	$	19,399	$	16,344

Comprehensive Income
Net income	$	21,909	$	19,399	$	16,344
Net unrealized holding (loss) gain on securities available-for-sale during the period	(4,023)		946		2,843

Less: Income tax (benefit) expense related to other comprehensive (loss) income	(1,046)		246		763
Other comprehensive (loss) income	(2,977)		700		2,080
Total comprehensive income	$	18,932	$	20,099	$	18,424


	Three months ended
(in thousands, except per share and share data)	September 30, 2026			June 30, 2026			September 30, 2025
Share and Per Share Data
Earnings per common share:
Basic	$	0.92		$	0.91		$	0.77
Diluted	$	0.92		$	0.91		$	0.77
Book value per share	$	25.15		$	22.14		$	20.19
Tangible book value per share(1)	$	25.15		$	22.14		$	20.19
Weighted average basic common shares outstanding	23,620,369			21,273,902			21,231,563
Weighted average diluted common shares outstanding	23,697,397			21,338,903			21,281,818
Shares outstanding at end of period	24,536,614			21,402,864			21,367,387

Selected Financial Ratios
ROAA	1.55		%	1.49		%	1.44		%
ROAE	15.04		%	16.67		%	15.35		%
Net interest margin	3.69		%	3.63		%	3.56		%
Loan to deposit(2)	97.51		%	94.17		%	94.73		%

(1) See the section entitled “Non-GAAP Reconciliation (Unaudited)” for a reconciliation of this non-GAAP financial measure.

(2) Loan balance in loan to deposit ratio is total loans held for investment at period end. Deposit balance in loan to deposit ratio is total deposits at period end.


(in thousands)	September 30, 2026			June 30, 2026			September 30, 2025
Balance Sheet Data
Cash and due from financial institutions	$	46,297		$	45,966		$	44,147
Interest-bearing deposits in banks	633,185			639,108			536,300
Time deposits in banks	—			—			100
Securities - available-for-sale, at fair value	82,228			90,584			95,635
Securities - held-to-maturity, at amortized cost	1,930			2,135			2,190

Loans held for investment	4,704,215			4,519,681			3,887,259
Allowance for credit losses	(49,390)			(47,335)			(42,061)
Loans held for investment, net of allowance for credit losses	4,654,825			4,472,346			3,845,198
FHLB stock	15,000			15,000			15,000
Operating leases, right-of-use asset	10,661			10,138			9,751
Premises and equipment, net	2,687			2,333			1,656
Bank-owned life insurance	29,029			28,759			23,676
Interest receivable and other assets	83,776			70,693			68,117
Total assets	$	5,559,618		$	5,377,062		$	4,641,770

Non-interest-bearing deposits	$	1,210,488		$	1,174,406		$	1,059,082
Interest-bearing deposits	3,614,040			3,624,977			3,044,356
Total deposits	4,824,528			4,799,383			4,103,438
Subordinated notes, net	74,150			74,114			74,004

Operating lease liability	11,926			11,262			10,431
Interest payable and other liabilities	31,803			18,532			22,589
Total liabilities	4,942,407			4,903,291			4,210,462

Common stock	435,511			304,868			303,571
Retained earnings	194,092			178,318			137,615
Accumulated other comprehensive loss, net of taxes	(12,392)			(9,415)			(9,878)
Total shareholders’ equity	617,211			473,771			431,308
Total liabilities and shareholders’ equity	$	5,559,618		$	5,377,062		$	4,641,770

Quarterly Average Balance Data
Average loans held for investment and sale	$	4,612,608		$	4,328,304		$	3,831,851
Average interest-earning assets	5,475,669			5,099,006			4,380,191
Average total assets	5,595,968			5,222,360			4,490,309
Average deposits	4,908,264			4,650,350			3,961,698
Average total equity	577,886			466,779			422,420

Credit Quality
Allowance for credit losses to nonperforming loans	371.49		%	354.57		%	1,975.62		%
Nonperforming loans to loans held for investment	0.28		%	0.30		%	0.05		%
Nonperforming assets to total assets	0.24		%	0.25		%	0.05		%
Nonperforming loans plus performing loan modifications to loans held for investment	0.28		%	0.30		%	0.05		%


(in thousands)	September 30, 2026		June 30, 2026		September 30, 2025
Capital Ratios
Total shareholders’ equity to total assets	11.10	%	8.81	%	9.29	%
Tangible shareholders’ equity to tangible assets(1)	11.10	%	8.81	%	9.29	%
Total capital (to risk-weighted assets)	15.00	%	12.50	%	13.59	%
Tier 1 capital (to risk-weighted assets)	12.52	%	9.97	%	10.77	%
Common equity Tier 1 capital (to risk-weighted assets)	12.52	%	9.97	%	10.77	%
Tier 1 leverage ratio	11.21	%	9.21	%	9.78	%

(1) See the section entitled “Non-GAAP Reconciliation (Unaudited)” for a reconciliation of this non-GAAP financial measure.

Non-GAAP Reconciliation (Unaudited)

The Company uses financial information in its analysis of the Company’s performance that is not in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company believes that these non-GAAP financial measures provide useful information to management and investors that is supplementary to the Company’s financial condition, results of operations, and cash flows computed in accordance with GAAP. However, the Company acknowledges that its non-GAAP financial measures have a number of limitations. As such, investors should not view these disclosures as a substitute for results determined in accordance with GAAP. Additionally, these non-GAAP measures are not necessarily comparable to non-GAAP financial measures that other banking companies use. Other banking companies may use names similar to those the Company uses for the non-GAAP financial measures the Company discloses, but may calculate them differently. Investors should understand how the Company and other companies each calculate their non-GAAP financial measures when making comparisons.

Tangible shareholders’ equity to tangible assets is defined as total equity less goodwill and other intangible assets, divided by total assets less goodwill and other intangible assets. The most directly comparable GAAP financial measure is total shareholders’ equity to total assets. Management believes that tangible shareholders’ equity to tangible assets is a useful financial measure because it enables management, investors, and others to assess the Company’s financial health based on tangible capital. We had no goodwill or other intangible assets at the end of any period indicated. As a result, tangible shareholders’ equity to tangible assets is the same as total shareholders’ equity to total assets at the end of each of the periods indicated.

Tangible book value per share is defined as total shareholders’ equity less goodwill and other intangible assets, divided by the outstanding number of common shares at the end of the period. The most directly comparable GAAP financial measure is book value per share. Management believes that tangible book value per share is a useful financial measure because it enables management, investors, and others to assess the Company’s value and use of equity. We had no goodwill or other intangible assets at the end of any period indicated. As a result, tangible book value per share is the same as book value per share at the end of each of the periods indicated.

Pre-tax, pre-provision income is defined as pre-tax income plus provision for credit losses. The most directly comparable GAAP financial measure is pre-tax income. Management believes that pre-tax, pre-provision income is a useful financial measure because it enables management, investors, and others to assess the Company’s ability to generate operating profit and capital.

The following reconciliation table provides a more detailed analysis of this non-GAAP financial measure:


	Three months ended
(in thousands)	September 30, 2026		June 30, 2026		September 30, 2025
Pre-tax, pre-provision income
Pre-tax income	$	29,529	$	26,089	$	22,234
Add: provision for credit losses	2,500		2,250		2,500
Pre-tax, pre-provision income	$	32,029	$	28,339	$	24,734

Investor Contact:
Heather C. Luck, Chief Financial Officer
Five Star Bancorp
(916) 626-5008
hluck@fivestarbank.com

Media Contact:

Shelley R. Wetton, Chief Marketing Officer
Five Star Bancorp
(916) 284-7827
swetton@fivestarbank.com

T H I R D Q U A R T E R 2 0 2 6 I N V E S T OR PR E S E N T AT I O N

Safe Harbor Statement and Disclaimer Forward-Looking Statements In this presentation, “we,” “our,” “us,” “Five Star,” or “the Company” refers to Five Star Bancorp, a California corporation, and our consolidated subsidiaries, including Five Star Bank, a California state-chartered bank, unless the context indicates that we refer only to the parent company, Five Star Bancorp. This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements represent plans, estimates, objectives, goals, guidelines, expectations, intentions, projections, and statements of the Company’s beliefs concerning future events, business plans, objectives, expected operating results, and the assumptions upon which those statements are based. Forward-looking statements include without limitation, any statement that may predict, forecast, indicate, or imply future results, performance, or achievements, and are typically identified with words such as “may,” “could,” “should,” “will,” “would,” “believe,” “anticipate,” “estimate,” “expect,” “aim,” “intend,” “plan,” or words or phrases of similar meaning. The Company cautions that the forward-looking statements are based largely on the Company’s expectations and are subject to a number of known and unknown risks and uncertainties that are subject to change based on factors which are, in many instances, beyond the Company’s control. Such forward-looking statements are based on various assumptions (some of which may be beyond the Company’s control) and are subject to risks and uncertainties, which change over time, and other factors which could cause actual results to differ materially from those currently anticipated. New risks and uncertainties may emerge from time to time, and it is not possible for the Company to predict their occurrence or how they will affect the Company. If one or more of the factors affecting the Company’s forward-looking information and statements proves incorrect, then the Company’s actual results, performance, or achievements could differ materially from those expressed in, or implied by, forward-looking information and statements contained in this presentation. Therefore, the Company cautions you not to place undue reliance on the Company’s forward-looking information and statements. Important factors that could cause actual results to differ materially from those in the forward-looking statements are set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 and Quarterly Reports on Form 10-Q for the three months ended March 31, 2026 and June 30, 2026 under the section entitled “Risk Factors,” and other documents filed by the Company with the Securities and Exchange Commission from time to time. The Company disclaims any duty to revise or update the forward-looking statements, whether written or oral, to reflect actual results or changes in the factors affecting the forward-looking statements, except as specifically required by law. Industry Information This presentation includes statistical and other industry and market data that we obtained from government reports and other third-party sources. Our internal data, estimates, and forecasts are based on information obtained from government reports, trade, and business organizations and other contacts in the markets in which we operate and our management’s understanding of industry conditions. Although we believe that this information (including the industry publications and third-party research, surveys, and studies) is accurate and reliable, we have not independently verified such information. In addition, estimates, forecasts, and assumptions are necessarily subject to a high degree of uncertainty and risk due to a variety of factors. Finally, forward-looking information obtained from these sources is subject to the same qualifications and the additional uncertainties regarding the other forward-looking statements in this presentation. Unaudited Financial Data Numbers contained in this presentation for the quarter ended September 30, 2026 and for other quarterly periods are unaudited. Additionally, all figures presented as year-to-date and for periods that represent a full fiscal year ended December 31, represent unaudited results. As a result, subsequent information may cause a change in certain accounting estimates and other financial information, including the Company’s allowance for credit losses, fair values, and income taxes. Non-GAAP Financial Measures The Company uses financial information in its analysis of the Company’s performance that is not in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company believes that these non-GAAP financial measures provide useful information to management and investors that is supplementary to the Company’s financial condition, results of operations, and cash flows computed in accordance with GAAP. However, the Company acknowledges that its non-GAAP financial measures have a number of limitations. See the appendix to this presentation for a reconciliation of these non-GAAP measures to the most directly comparable GAAP financial measures. 2

COM PA N Y OV ERV I EW

Company Overview NASDAQ FSBC HEADQUARTERS Rancho Cordova, CA TOTAL ASSET SIZE $5.6 billion LOANS HELD FOR INVESTMENT $4.7 billion DEPOSITS $4.8 billion BANK BRANCHES 10 Note: Highlighted counties represent those in which the Company operates at least one physical location, such as a bank branch or non-depository office, as of September 30, 2026. Balances and number of bank branches are as of September 30, 2026. Five Star is a community business bank that was founded to serve the commercial real estate industry. Today, the markets we serve have expanded to meet customer demand and now include manufactured housing and storage, faith-based, government, nonprofits, and more. 4

Executive Team JAMES BECKWITH President Chief Executive Officer Five Star since 2003 JOHN DALTON Senior Vice President Chief Credit Officer Five Star since 2011 MIKE LEE Senior Vice President Chief Regulatory Officer Five Star since 2005 MICHAEL RIZZO Executive Vice President Chief Banking Officer Five Star since 2005 BRETT WAIT Senior Vice President Chief Information Officer Five Star since 2011 LYDIA RAMIREZ Executive Vice President Chief External Affairs Officer Five Star since 2017 HEATHER LUCK Executive Vice President Chief Financial Officer Five Star since 2018 SHELLEY WETTON Senior Vice President Chief Marketing Officer Five Star since 2015 DJ KURTZE Executive Vice President San Francisco Bay Area President Five Star since 2023 CLIFF COOPER Executive Vice President Food, Agribusiness & Diversified Industries President Five Star since 2025 5

Recent Awards and Rankings Five Star Bank Awards and Rankings S&P Global Market Intelligence 2025 | TOP 3 BEST-PERFORMING COMMUNITY BANKS IN THE NATION (Banks with $3B - $10B in Assets) 2025 | RAYMOND JAMES COMMUNITY BANKERS CUP (Ranked in Top 10% of Community Banks in the Nation) Bank Director Magazine (Ranking Banking) 2025 | RANKED 4TH ON THE LIST OF THE BEST U.S. BANKS (Banks with Assets Less Than $5B) Bank Director Magazine (Ranking Banking) 2025 | RANKED 13TH ON THE LIST OF TOP 25 U.S. BANKS Piper Sandler’s 2026 | SM-ALL STARS Bank Executive and Employee Awards SACRAMENTO BUSINESS JOURNAL 40 Under 40 Power 100 List C-Suite Award Champions for DE&I Women Who Mean Business Fastest Growing Banks by Deposits SAN FRANCISCO BUSINESS TIMES 40 Under 40 Newsmaker 100 List Best Places to Work #1 Ranking SACRAMENTO METRO CHAMBER OF COMMERCE Sacramentan of the Year Award HISPANIC CHAMBER OF COMMERCE Champion Latina Estrella Award COMMERCIAL REAL ESTATE WOMEN SACRAMENTO Women of Impact Award SACRAMENTO STATE ALUMNI ASSOCIATION Distinguished Alumni Award 6

FI NA NCI A L H IGH LIGH T S

Growth • Continued balance sheet growth with increases in loans held for investment of $184.5 million and non-wholesale(1) deposits of $75.1 million since June 30, 2026. Funding • Non-interest-bearing deposits comprised 25.09% of total deposits, as compared to 24.47% of total deposits as of June 30, 2026. • Deposits comprised 97.61% of total liabilities, as compared to 97.88% of total liabilities as of June 30, 2026. Liquidity • Insured and collateralized deposits were approximately $3.3 billion, representing 68.08% of total deposits, compared to 65.80% as of June 30, 2026. • Cash and cash equivalents were $679.5 million, representing 14.08% of total deposits, compared to 14.27% as of June 30, 2026. Capital • All capital ratios were above well-capitalized regulatory thresholds. • Completed an underwritten public offering during the third quarter of 2026, strengthening regulatory capital ratios and supporting future growth opportunities. • On July 16, 2026 and October 15, 2026, the Company declared cash dividends of $0.25 per share for the three months ended June 30, 2026 and September 30, 2026, respectively. Financial Highlights - September 30, 2026 1. The Company defines wholesale deposits as brokered deposits and California Time Deposit Program deposits. 8

Financial Highlights (dollars in thousands, except per share data) For the three months ended 9/30/2026 6/30/2026 9/30/2025 Profitability Net income $ 21,909 $ 19,399 $ 16,344 Return on average assets ("ROAA") 1.55 % 1.49 % 1.44 % Return on average equity ("ROAE") 15.04 % 16.67 % 15.35 % Earnings per share (basic and diluted) $ 0.92 $ 0.91 $ 0.77 Tangible book value per share(1) $ 25.15 $ 22.14 $ 20.19 Net Interest Margin Net interest margin 3.69 % 3.63 % 3.56 % Average loan yield 6.14 % 6.08 % 6.14 % Average cost of interest-bearing deposits 2.91 % 2.89 % 3.28 % Average cost of total deposits 2.19 % 2.16 % 2.44 % Total cost of funds(2) 2.25 % 2.23 % 2.51 % 9/30/2026 12/31/2025 Deposits and Securities Non-interest-bearing deposits $ 1,210,488 $ 1,084,537 Interest-bearing deposits 3,614,040 3,116,547 Total deposits 4,824,528 4,201,084 Total securities 84,158 96,889 Total securities to interest-earning assets 1.55 % 2.09 % Loans and Asset Quality Total loans held for investment $ 4,704,215 $ 4,074,929 Nonperforming loans to loans held for investment 0.28 % 0.08 % Allowance for credit losses to loans held for investment 1.05 % 1.09 % Note: Yields are based on average balance and annualized quarterly interest income. Costs are based on average balance and annualized quarterly interest expense. 1. A reconciliation of this non-GAAP measure is set forth in the appendix. 2. Total cost of funds reflects the average cost of all funding sources, including both interest-bearing and non-interest-bearing deposits and borrowings. 9

$840 $973 $1,272 $1,480 $1,954 $2,557 $3,227 $3,593 $4,053 $4,755 $5,560 $1,806 $2,535 $148 $22 Total Assets Excluding PPP Loans PPP Loans 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Q3 2026 Consistent and Organic Asset Growth Note: Dollars are in millions. Balances are end of period. References to PPP are the Paycheck Protection Program. 1. CAGR is based upon balances as of September 30, 2026. 2. A reconciliation of this non-GAAP measure is set forth in the appendix. (2) CAGR (1) 5 years 10 years Total Assets 17.76% 21.38% 10

Earnings Track Record Ea rn in gs (i n M ill io ns ) Q uarterly Earnings per Share $20.3M $22.6M $24.7M $25.8M $27.7M $28.3M $32.0M $18.4M $20.1M $22.2M $23.0M $25.0M $26.1M $29.5M $0.62 $0.68 $0.77 $0.83 $0.87 $0.91 $0.92 Pre-tax, pre-provision income Pre-tax income Quarterly EPS (basic and diluted) Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026 $0.0M $5.0M $10.0M $15.0M $20.0M $25.0M $30.0M $35.0M $0.00 $0.20 $0.40 $0.60 $0.80 $1.00 $1.20 $1.40 1. A reconciliation of this non-GAAP measure is set forth in the appendix. (1) 11

Operating Metrics Efficiency RatioNet Interest Margin 3.42% 3.32% 3.55% 3.70% 3.63% 3.69% 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 40.35% 43.19% 41.03% 38.57% 40.91% 39.13% 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 12

Non-interest Income and Expense Comparison (dollars in thousands) For the three months ended 9/30/2026 6/30/2026 9/30/2025 Non-interest Income Service charges on deposit accounts $ 148 $ 122 $ 185 Loan-related fees 472 679 683 FHLB stock dividends 424 191 329 Earnings on bank-owned life insurance 270 265 209 Other income 380 615 560 Total non-interest income $ 1,694 $ 1,872 $ 1,966 Non-interest Expense Salaries and employee benefits $ 12,338 $ 11,421 $ 9,716 Occupancy and equipment 935 873 700 Data processing and software 1,742 1,709 1,559 Federal Deposit Insurance Corporation insurance 670 585 500 Professional services 1,330 952 932 Advertising and promotional 798 959 803 Loan-related expenses 319 304 317 Other operating expenses 2,459 2,813 2,053 Total non-interest expense $ 20,591 $ 19,616 $ 16,580 13

Shareholder Returns ROAA ROAE Value per Share (book and tangible book(2)) 1. Cash dividend payout ratio on common stock is calculated as dividends on common shares divided by basic earnings per common share. 2. A reconciliation of this non-GAAP measure is set forth in the appendix. 1.44% 1.23% 1.41% 1.55% 1.49% 1.55% 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 17.85% 12.72% 14.74% 16.73% 16.67% 15.04% 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 $16.56 $18.60 $20.87 $21.45 $22.14 $25.15 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 26.98% 35.45% 27.59% 28.74% 27.47% 27.17% 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 14 Cash Dividend Payout Ratio on Common Stock(1)

Loans and Credit Quality 15 LOA N S A N D CRE DI T QUA L I T Y

To ta l L oa ns H el d fo r I nv es tm en t ( M ill io ns ) $1,912 $2,791 $3,082 $3,533 $4,075 $4,213 $4,520 $4,704 $22 4.82% 4.75% 5.52% 5.89% 6.08% 6.07% 6.08% 6.14% 4.70% 4.73% Non-PPP Loans PPP Loans Average Loan Yield Average Loan Yield Excluding PPP Loans 2021 2022 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 $0 $500 $1,000 $1,500 $2,000 $2,500 $3,000 $3,500 $4,000 $4,500 $5,000 Consistent Loan Growth Note: Loan balances are end of period loans held for investment. Yields are based on average balance and annualized quarterly interest income. 1. CAGR is based upon balances as of September 30, 2026. 2. A reconciliation of this non-GAAP measure is set forth in the appendix. (2) CAGR (1) 5 years Total Loans 20.57% 16

Commercial real estate, 78.19% Commercial construction, 2.60% Residential construction, 0.54% Residential, 0.88% Farmland, 1.21% Commercial secured, 6.66% Commercial unsecured, 0.83% Consumer and other, 9.04% Other, 0.05% Loan Portfolio Composition Types of collateral securing commercial real estate ("CRE") loans Loan Balance ($000s) # of Loans % of CRE Manufactured home community $ 1,118,987 509 30.42 % RV Park 451,113 140 12.26 % Retail 328,883 100 8.94 % Multifamily 323,287 133 8.79 % Office 293,011 119 7.96 % Industrial 256,636 156 6.98 % Mini storage 207,592 52 5.64 % Faith-based 188,050 114 5.11 % All other types (2) 511,365 216 13.90 % Total $ 3,678,924 1,539 100.00 % Note: Balances are net book value as of September 30, 2026, before allowance for credit losses and deferred loan fees. 1. Types of loans in "Other" are those that individually make up less than 0.50% of the total loan portfolio. 2. Types of collateral in “All other types” are those that individually make up less than 5% CRE concentration. (1) 17

$1.1B $451M $329M $323M $293M $257M $208M $188M $511M $2.0B $844M $720M $732M $624M $633M $412M $502M $1.1B 59.42% 57.53% 53.06% 52.96% 56.13% 49.07% 56.77% 47.12% 54.50% Loan Balance Collateral Value Weighted Average LTV Manufactured home community RV Park Retail Multifamily Office Industrial Mini storage Faith-based All other types CRE Collateral Values (1) Note: Balances are net book value as of September 30, 2026, before allowance for credit losses and deferred loan fees. LTV refers to loan-to-value. 1. Types of collateral in “All other types” are those that individually make up less than 5% CRE concentration. Total CRE Weighted Average LTV 55.61% 18

CA, 58.8% TX, 6.5% FL, 2.9% NC, 2.8% OR, 2.4% AZ, 2.4% GA, 2.2%WA, 2.0%TN, 1.6%NV, 1.4% CO, 1.2% MO, 1.1% OH, 1.0% PA, 1.0% Other, 12.7% CML Term CRE NOO, 34.3% CML Term Multifamily, 30.4% CML Term CRE OO, 12.9% CSM Unsecured, 9.0% CML Secured, 3.4% CML Const CRE, 2.6% Ag Production, 1.7% CML Term Ag RE, 1.2% Others, 4.5% CRE Manufactured Home, 23.8% CRE Other, 10.9% CRE RV Park, 9.6% Consumer Unsecured, 9.0% Commercial Other, 7.3% CRE Retail, 7.0% CRE Multifamily, 6.9% CRE Office, 6.2% CRE Industrial, 5.5% CRE Mini Storage, 4.4% CRE Faith-based, 4.0% Commercial Construction, 2.6% Others, 2.8% Loan Portfolio Diversification Our core business centers on commercial lending, with an emphasis on commercial real estate. We provide a comprehensive suite of loan products tailored to the needs of small and medium-sized businesses, professionals, and individuals — including commercial real estate, commercial land and construction, and farmland loans. Additionally, we offer residential real estate, construction, and consumer loans, further supporting a broad range of client needs. Note: Balances are net book value as of September 30, 2026, before allowance for credit losses and deferred loan fees. Loans by Type Loans by Purpose Real Estate Loans by Geography 19

Loan Rollforward Note: Dollars are in millions. Beginning and ending balances are end of period, before allowance for credit losses, including deferred loan fees, and exclude loans held for sale. $259 $319 $353 $452 $389 $640 $538 $(105) $(119) $(134) $(145) $(183) $(239) $(211) $(66) $(65) $(89) $(119) $(68) $(94) $(142) Originations & Advances Paydowns Payoffs Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026 Beginning Balance $ 3,533 $ 3,622 $ 3,758 $ 3,887 $ 4,075 $ 4,213 $ 4,520 Ending Balance $ 3,622 $ 3,758 $ 3,887 $ 4,075 $ 4,213 $ 4,520 $ 4,704 Loans Held for Investment 20

Loan Yield Composition Note: Dollars are in millions. Balances are net book value as of September 30, 2026, before allowance for credit losses and deferred loan fees. Weighted average rates are as of September 30, 2026 and based upon outstanding principal. Fixed, 26.7% Adjustable, 66.5% Floating, 6.8% Floating or Adjustable, 73.3% $318M $540M $621M $323M $416M $596M $633M 7.40% 5.86% 5.06% 6.59% 6.78% 6.55% 6.55% Floating Rate Loans Adjustable Rate Loans Weighted Average Rate Monthly (Floating) Rest of 2026 2027 2028 2029 2030 After 2030 $3.1 billion, or 66.5%, of total loans held for investment as of September 30, 2026 are adjustable rate loans. $540 million in adjustable rate loans, with a weighted average rate of 5.86%, are scheduled to reprice before the end of 2026. 21

1.20% 1.02% 1.12% 1.07% 1.09% 1.10% 1.05% 1.05% 0.04% 0.07% 0.11% 0.12% 0.08% 0.05% 0.10% 0.06% Allowance for Credit Losses to Loans HFI Net Charge-offs to Average Loans HFI 2021 2022 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 Asset Quality Nonperforming Loan Trend Allowance for Credit Losses and Annualized Net Charge-off Trend Note: References to loans HFI are loans held for investment, which are the equivalent of total loans outstanding at each period end. References to average loans HFI are average loans held for investment during the period. References to annualized net charge-offs are annualized quarterly net charge-offs for periods less than one year, and annual net charge-offs otherwise. $0.6M $0.4M $2.0M $1.8M $3.1M $2.8M $13.4M $13.3M 0.03% 0.01% 0.06% 0.05% 0.08% 0.07% 0.30% 0.28% Nonperforming Loans Nonperforming Loans to Loans HFI 2021 2022 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 Our primary objective is to maintain a high level of asset quality in our loan portfolio. Therefore, we: • Place emphasis on our commercial portfolio, where we reevaluate risk assessments as a result of reviewing commercial property operating statements and borrower financials • Monitor payment performance, delinquencies, tax compliance, and property insurance compliance of our borrowers • Design our practices to facilitate the early detection and remediation of problems within our loan portfolio • Employ the use of an outside, independent consulting firm to evaluate our underwriting and risk assessment process 22

Allocation of Allowance for Credit Losses (dollars in thousands) September 30, 2025 December 31, 2025 March 31, 2026 June 30, 2026 September 30, 2026 Allowance for Credit Losses Amount % of Total % of Loans to Total Loans Amount % of Total % of Loans to Total Loans Amount % of Total % of Loans to Total Loans Amount % of Total % of Loans to Total Loans Amount % of Total % of Loans to Total Loans Real estate: Commercial $ 23,473 55.81 % 80.86 % $ 25,219 56.77 % 81.08 % $ 26,919 57.96 % 81.17 % $ 28,371 59.92 % 79.56 % $ 28,540 57.79 % 78.19 % Commercial land & development 30 0.07 % 0.02 % 56 0.13 % 0.03 % 93 0.20 % 0.06 % 90 0.19 % 0.06 % 92 0.19 % 0.05 % Commercial construction 4,355 10.35 % 3.52 % 4,050 9.12 % 2.37 % 3,982 8.57 % 2.57 % 4,444 9.39 % 2.74 % 4,526 9.16 % 2.60 % Residential construction 108 0.26 % 0.15 % 213 0.48 % 0.21 % 492 1.06 % 0.42 % 533 1.13 % 0.48 % 806 1.63 % 0.54 % Residential 351 0.83 % 0.92 % 362 0.82 % 0.92 % 421 0.91 % 1.02 % 419 0.89 % 0.93 % 461 0.93 % 0.88 % Farmland 425 1.01 % 1.48 % 467 1.05 % 1.46 % 495 1.07 % 1.45 % 468 0.99 % 1.32 % 432 0.87 % 1.21 % Total real estate loans 28,742 68.33 % 86.95 % 30,367 68.37 % 86.07 % 32,402 69.77 % 86.69 % 34,325 72.51 % 85.09 % 34,857 70.57 % 83.47 % Commercial: Secured 10,400 24.73 % 4.91 % 11,204 25.23 % 6.17 % 11,191 24.10 % 5.77 % 9,594 20.27 % 5.72 % 10,630 21.52 % 6.66 % Unsecured 438 1.04 % 0.99 % 482 1.09 % 0.99 % 487 1.05 % 1.00 % 486 1.03 % 0.91 % 502 1.02 % 0.83 % Total commercial loans 10,838 25.77 % 5.90 % 11,686 26.32 % 7.16 % 11,678 25.15 % 6.77 % 10,080 21.30 % 6.63 % 11,132 22.54 % 7.49 % Consumer & other 2,481 5.90 % 7.15 % 2,356 5.31 % 6.77 % 2,359 5.08 % 6.54 % 2,930 6.19 % 8.28 % 3,401 6.89 % 9.04 % Total allowance for credit losses $ 42,061 100.00 % 100.00 % $ 44,409 100.00 % 100.00 % $ 46,439 100.00 % 100.00 % $ 47,335 100.00 % 100.00 % $ 49,390 100.00 % 100.00 % 23

Risk Grade Migration Classified Loans (Loans Rated Substandard or Doubtful) (dollars in thousands) 2024 2025 Q1 2026 Q2 2026 Q3 2026 Real estate: Commercial $ 2,587 $ 21,372 $ 21,653 $ 19,142 $ 19,061 Commercial land and development — — — — — Commercial construction — — — — — Residential construction — — — — — Residential — — — — — Farmland — — — — — Commercial: Secured 48 953 1,713 1,142 1,007 Unsecured — — — — — Consumer and other 9 6 5 4 3 Total $ 2,644 $ 22,331 $ 23,371 $ 20,288 $ 20,071 % of Loan Portfolio Outstanding by Risk Grade: Pass 95.22 % 96.03 % 94.98 % 95.14 % 95.41 % Watch 3.49 % 2.50 % 3.40 % 3.42 % 3.13 % Special Mention 1.22 % 0.92 % 1.07 % 0.99 % 1.03 % Substandard 0.07 % 0.55 % 0.55 % 0.45 % 0.43 % Note: Loan portfolio outstanding is total balance of loans outstanding at period end, before deferred loan fees and allowance for credit losses, and excluding loans held for sale. 24

DEPOSI T A ND C A PI TA L OV ERV I EW

$2.3B $2.8B $3.0B $3.6B $4.2B $4.5B $4.8B $4.8B $1,001M $1,228M $1,409M $1,650M $2,218M $2,433M $2,817M $2,941M$902M $971M $831M $923M $1,085M $1,233M $1,174M $1,210M $279M $240M $320M $315M $344M $349M $500M $416M $104M $343M $467M $670M $555M $454M $308M $258M 8,162 9,832 11,855 13,500 15,494 15,808 16,385 17,061 Money Market & Savings Non-Interest-Bearing Interest-Bearing Transaction Time Deposits Total Number of Accounts 2021 2022 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 Strong Deposit Growth Note: Balances are end of period. Cost of total deposits is based on total average balance of interest-bearing and non-interest-bearing deposits and annualized quarterly deposit interest expense. 1. CAGR is based upon balances as of September 30, 2026. 2. As of quarter- or year-end, as applicable Cost of Total Deposits 0.11% 0.43% 1.97% 2.56% 2.40% 2.13% 2.16% 2.19% CAGR (1) 5 years Total Deposits 17.03% (2) 26

Diversified Funding Total Deposits(1) = $4.8 billion 97.6% of Total Liabilities Liability Mix(1) 1. Balances are as of September 30, 2026. 2. Loan balance in loan to deposit ratio is total loans held for investment and sale at period end. Loan(2) to Deposit Ratio Non-Interest-Bearing Deposits to Total Deposits 85.1% 100.7% 102.2% 99.4% 97.0% 94.3% 94.2% 97.5% 2021 2022 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 39.5% 34.9% 27.5% 25.9% 25.8% 27.6% 24.5% 25.1% 2021 2022 2023 2024 2025 Q1 2026 Q2 2026 Q3 2026 Money Market, 56.5% Non-Interest- Bearing, 24.5% Time Deposits, 5.2% Interest-Bearing Transaction, 8.4% Savings, 3.0% Borrowings & Subordinated Notes, 1.5% Other Liabilities, 0.9% 27

Government, 25.15% Commercial Real Estate & Construction, 17.23% Professional Service Practice, 11.20% Other, 9.81% Small to Medium Sized Business, 8.71% Non-profit, 8.48% Healthcare & Practice, 6.92% Manufactured Home Community, 6.58% Food, Agribusiness, & Diversified Industries, 1.90% Venture Banking, 1.75% Faith-based, 1.67% RV Park, 0.60% Deposit Composition 7.45 Years Average Age of Relationships > $5 million Note: Balances are as of September 30, 2026 and include time and wholesale deposits. 1. Types of accounts in “Other” are individuals, trusts, estates, and market verticals that individually make up less than 0.50% of all deposits. 2. Government and Local Agency Depositors includes State of California, which comprises 4.15% of total deposits. $283,000 Average Deposit Account Balance Relationships > $5 million, 62.44% Relationships ≤ $5 million, 37.56% Total Deposits by Relationship Size Local Agency BreakoutTotal Deposits by Market Vertical Local Agency Depositors, 25.18% All Other Depositors, 74.82% (2) (1) (2) 28

Capital Ratios Tier 1 Leverage Ratio Tier 1 Capital to RWA Total Capital to RWA Common Equity Tier 1 to RWA Note: References to RWA are risk-weighted assets. 9.47% 8.60% 8.73% 10.05% 9.70% 11.21% 2021 2022 2023 2024 2025 Q3 2026 11.44% 8.99% 9.07% 11.02% 10.58% 12.52% 2021 2022 2023 2024 2025 Q3 2026 11.44% 8.99% 9.07% 11.02% 10.58% 12.52% 2021 2022 2023 2024 2025 Q3 2026 13.98% 12.46% 12.30% 13.99% 13.33% 15.00% 2021 2022 2023 2024 2025 Q3 2026 29

“Five Star Bank customer, Visit Sacramento, ensures our region is a leading destination for meetings, conventions, travel trade and leisure, which support the vitality of our regional economy by driving almost $200 million in visitor spending annually. Their vision is for every person in the world to say, “I want to visit Sacramento!” David Eadie, Chief Sports & Entertainment Officer Sonya Bradley, Chief DEI & Community Relations Officer Mariles Krock, Chief Convention Sales & Services Officer Kari Miskit, Chief Operating Officer & Media Relations Mike Testa, President & CEO VISIT SACRAMENTO Five Star Bank customer, Cristo Rey High School Sacramento, is a Catholic, fully-accredited college preparatory high school. They offer a focused curriculum designed to support students not only in being accepted to college, but in graduating from college. Their goal is to educate the “whole person,” that is the mind, body and spirit of each student. They offer a challenging academic curriculum, as well as opportunities for co-curricular, spiritual and religious formation. Dave Lucchetti, Five Star Bancorp Retired Board Chair Father Christopher Calderon, President Cristo Rey Students CRISTO REY HIGH SCHOOL SACRAMENTO “ "Five Star Bank stepped in when Point Reyes Farmstead Cheese Company started having issues with our prior lender. They were flexible and agreed to expand our credit line and work with us on financial covenants that made sense for our business. They made the transition for operating accounts smooth and easy. They were also willing to work with us to refinance and increase our debt. It has been refreshing to have a local bank that listens to our needs and helps us out in a difficult lending environment." Diana Giacomini Hagan, Co-owner & CFO Jill Giacomini Basch, Co-owner & CMO Lynn Giacomini Stray, Co-owner & COO POINT REYES FARMSTEAD CHEESE COMPANY “ We strive to become the top business bank in all markets we serve through exceptional service, deep connectivity, and customer empathy. We are dedicated to serving real estate, agricultural, faith-based, and small to medium-sized enterprises. We aim to consistently deliver value that meets or exceeds the expectations of our shareholders, customers, employees, business partners, and community.

Appendix: Non-GAAP Reconciliation (Unaudited) The Company uses financial information in its analysis of the Company's performance that is not in conformity with GAAP. The Company believes that these non- GAAP financial measures provide useful information to management and investors that is supplementary to the Company's financial condition, results of operations, and cash flows computed in accordance with GAAP. However, the Company acknowledges that its non-GAAP financial measures have a number of limitations. As such, investors should not view these disclosures as a substitute for results determined in accordance with GAAP. Additionally, these non-GAAP measures are not necessarily comparable to non-GAAP financial measures that other banking companies use. Other banking companies may use names similar to those the Company uses for the non-GAAP financial measures the Company discloses but may calculate them differently. Investors should understand how the Company and other companies each calculate their non-GAAP financial measures when making comparisons. Average loan yield, excluding PPP loans, is defined as the daily average loan yield, excluding PPP loans, and includes both performing and nonperforming loans. The most directly comparable GAAP financial measure is average loan yield. Management believes that average loan yield, excluding PPP loans, is a useful financial measure because it enables management, investors, and others to assess the Company's ability to manage yield on core loans. We had no PPP loans nor interest and fee income on PPP loans for the periods shown in this presentation other than the years ended December 31, 2020, 2021, and 2022. As a result, average loan yield, excluding PPP loans, is the same as daily average loan yield for all periods presented other than the years ended December 31, 2020, 2021, and 2022. Reconciliations for such periods are provided below. Total assets, excluding PPP loans, is defined as total assets less PPP loans. The most directly comparable GAAP financial measure is total assets. Management believes that total assets, excluding PPP loans, is a useful financial measure because it enables management, investors, and others to assess the Company's ability to manage core assets. We had no PPP loans as of the period ends shown in this presentation other than as of December 31, 2020 and 2021. As a result, total assets, excluding PPP loans, is the same as total assets for all periods presented, other than as of December 31, 2020 and 2021. Reconciliations for such periods are provided below. Pre-tax, pre-provision income is defined as pre-tax income plus provision for credit losses. The most directly comparable GAAP financial measure is pre-tax income. Management believes that pre-tax, pre-provision income is a useful financial measure because it enables management, investors, and others to assess the Company's ability to generate operating profit and capital. Tangible book value per share is defined as total shareholders’ equity less goodwill and other intangible assets, divided by the outstanding number of common shares at the end of the period. The most directly comparable GAAP financial measure is book value per share. Management believes that tangible book value per share is a useful financial measure because it enables management, investors, and others to assess the Company's value and use of equity. We had no goodwill or other intangible assets at the end of any period indicated. As a result, tangible book value per share is the same as book value per share at the end of each of the periods indicated. 31

Appendix: Non-GAAP Reconciliation (Unaudited) (dollars in millions) As of Total assets, excluding PPP loans 12/31/2020 12/31/2021 12/31/2022 12/31/2023 12/31/2024 12/31/2025 9/30/2026 Total assets $ 1,954 $ 2,557 $ 3,227 $ 3,593 $ 4,053 $ 4,755 $ 5,560 Less: PPP loans 148 22 — — — — — Total assets, excluding PPP loans $ 1,806 $ 2,535 $ 3,227 $ 3,593 $ 4,053 $ 4,755 $ 5,560 (dollars in thousands) Three months ended Pre-tax, pre-provision income 3/31/2025 6/30/2025 9/30/2025 12/31/2025 3/31/2026 6/30/2026 9/30/2026 Pre-tax income $ 18,391 $ 20,099 $ 22,234 $ 23,008 $ 25,031 $ 26,089 $ 29,529 Add: provision for credit losses 1,900 2,500 2,500 2,800 2,675 2,250 2,500 Pre-tax, pre-provision income $ 20,291 $ 22,599 $ 24,734 $ 25,808 $ 27,706 $ 28,339 $ 32,029 (dollars in thousands) Year ended Three months ended Average loan yield, excluding PPP loans 12/31/2021 12/31/2022 12/31/2023 12/31/2024 12/31/2025 9/30/2025 3/31/2026 6/30/2026 9/30/2026 Interest and fee income on loans $ 78,894 $ 111,795 $ 162,713 $ 193,341 $ 229,214 $ 59,257 $ 62,116 $ 65,565 $ 71,392 Less: interest and fee income on PPP loans 7,417 635 — — — — — — — Interest and fee income on loans, excluding PPP loans 71,477 111,160 162,713 193,341 229,214 59,257 62,116 65,565 71,392 Annualized interest and fee income on loans, excluding PPP loans (numerator) 71,477 111,160 162,713 193,341 229,214 235,096 251,915 262,980 283,240 Average loans held for investment and sale 1,637,280 2,353,148 2,947,603 3,283,874 3,767,199 3,831,851 4,150,446 4,328,304 4,612,608 Less: average PPP loans 116,652 2,297 — — — — — — — Average loans held for investment and sale, excluding PPP loans (denominator) 1,520,628 2,350,851 2,947,603 3,283,874 3,767,199 3,831,851 4,150,446 4,328,304 4,612,608 Average loan yield, excluding PPP loans 4.70 % 4.73 % 5.52 % 5.89 % 6.08 % 6.14 % 6.07 % 6.08 % 6.14 % 32

Source: View Original Filing on SEC EDGAR

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