<SEC-DOCUMENT>0001709442-25-000065.txt : 20250512
<SEC-HEADER>0001709442-25-000065.hdr.sgml : 20250512
<ACCEPTANCE-DATETIME>20250512110306
ACCESSION NUMBER:		0001709442-25-000065
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250508
FILED AS OF DATE:		20250512
DATE AS OF CHANGE:		20250512

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JLL/FCH Holdings I, LLC
		CENTRAL INDEX KEY:			0002030444
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42175
		FILM NUMBER:		25933514

	BUSINESS ADDRESS:	
		STREET 1:		300 PARK AVENUE
		STREET 2:		18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2122868600

	MAIL ADDRESS:	
		STREET 1:		300 PARK AVENUE
		STREET 2:		18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRSTSUN CAPITAL BANCORP
		CENTRAL INDEX KEY:			0001709442
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		ORGANIZATION NAME:           	02 Finance
		EIN:				814552413
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1400 16TH STREET
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
		BUSINESS PHONE:		785-827-5565

	MAIL ADDRESS:	
		STREET 1:		1400 16TH STREET
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1747062178.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-05-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001709442</issuerCik>
        <issuerName>FIRSTSUN CAPITAL BANCORP</issuerName>
        <issuerTradingSymbol>FSUN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002030444</rptOwnerCik>
            <rptOwnerName>JLL/FCH Holdings I, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O JLL PARTNERS FUND FCH LP</rptOwnerStreet1>
            <rptOwnerStreet2>300 PARK AVENUE, 18TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2025-05-08</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2025-05-08</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1169</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3485545</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Director annual restricted stock award granted 5/8/2025 for FirstSun Capital Bancorp board service, which vests on 5/8/2026.</footnote>
        <footnote id="F2">Includes 4,564 shares of common stock held by an affiliate of the Reporting Person, JLL Partners Fund FCH LP, for which the Reporting Person has voting power.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Daren Schneider, on behalf of JLL FCH Holdings I LLC</signatureName>
        <signatureDate>2025-05-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
