<SEC-DOCUMENT>0001275168-23-000011.txt : 20230203
<SEC-HEADER>0001275168-23-000011.hdr.sgml : 20230203
<ACCEPTANCE-DATETIME>20230203155430
ACCESSION NUMBER:		0001275168-23-000011
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230202
FILED AS OF DATE:		20230203
DATE AS OF CHANGE:		20230203

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Dalton John William
		CENTRAL INDEX KEY:			0001858207

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40379
		FILM NUMBER:		23585604

	MAIL ADDRESS:	
		STREET 1:		3100 ZINFANDEL DRIVE, SUITE 100
		CITY:			RANCHO CORDOVA
		STATE:			CA
		ZIP:			95670

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIVE STAR BANCORP
		CENTRAL INDEX KEY:			0001275168
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				753100966
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3100 ZINFANDEL DRIVE
		STREET 2:		SUITE 100
		CITY:			RANCHO CORDOVA
		STATE:			CA
		ZIP:			95670
		BUSINESS PHONE:		916-626-5000

	MAIL ADDRESS:	
		STREET 1:		3100 ZINFANDEL DRIVE
		STREET 2:		SUITE 100
		CITY:			RANCHO CORDOVA
		STATE:			CA
		ZIP:			95670
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_167545765593780.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-02-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001275168</issuerCik>
        <issuerName>FIVE STAR BANCORP</issuerName>
        <issuerTradingSymbol>FSBC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001858207</rptOwnerCik>
            <rptOwnerName>Dalton John William</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O FIVE STAR BANCORP</rptOwnerStreet1>
            <rptOwnerStreet2>3100 ZINFANDEL DRIVE, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>RANCHO CORDOVA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95670</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP &amp; Chief Credit Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-02-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>516</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24850</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan. One-third of the award of restricted stock vested immediately upon grant, with the remaining two-thirds to vest in equal annual installments over two years on January 1st of each year, provided Mr. Dalton, the reporting person, remains employed by Five Star Bancorp on the respective vesting dates.</footnote>
        <footnote id="F2">Consists of 5,600 unvested shares which were granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan and are scheduled to vest in equal installments over a remaining four-year period, and 172 unvested shares granted pursuant to the Five Star Bancorp 2021 Equity Incentive Plan scheduled to vest on January 1, 2024, provided Mr. Dalton remains employed by Five Star Bancorp on the respective vesting dates.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John W. Dalton, by Heather C. Luck, Attorney-in-Fact</signatureName>
        <signatureDate>2023-02-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
