<SEC-DOCUMENT>0001582883-25-000003.txt : 20251202
<SEC-HEADER>0001582883-25-000003.hdr.sgml : 20251202
<ACCEPTANCE-DATETIME>20251202132708
ACCESSION NUMBER:		0001582883-25-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251201
FILED AS OF DATE:		20251202
DATE AS OF CHANGE:		20251202

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Smith Lee Matthew
		CENTRAL INDEX KEY:			0001582883
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31565
		FILM NUMBER:		251542425

	MAIL ADDRESS:	
		STREET 1:		C/O FLAGSTAR BANCORP INC.
		STREET 2:		5151 CORPORATE DRIVE
		CITY:			TROY
		STATE:			MI
		ZIP:			48098

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FLAGSTAR BANK, NATIONAL ASSOCIATION
		CENTRAL INDEX KEY:			0000910073
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
		ORGANIZATION NAME:           	02 Finance
		EIN:				382734984
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		102 DUFFY AVENUE
		CITY:			HICKSVILLE
		STATE:			NY
		ZIP:			11801
		BUSINESS PHONE:		5166834100

	MAIL ADDRESS:	
		STREET 1:		102 DUFFY AVENUE
		CITY:			HICKSVILLE
		STATE:			NY
		ZIP:			11801

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FLAGSTAR FINANCIAL, INC.
		DATE OF NAME CHANGE:	20241101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW YORK COMMUNITY BANCORP, INC.
		DATE OF NAME CHANGE:	20240311

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW YORK COMMUNITY BANCORP INC
		DATE OF NAME CHANGE:	20001128
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1764700024.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-12-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000910073</issuerCik>
        <issuerName>FLAGSTAR BANK, NATIONAL ASSOCIATION</issuerName>
        <issuerTradingSymbol>NYSE:FLG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001582883</rptOwnerCik>
            <rptOwnerName>Smith Lee Matthew</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>102 DUFFY AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HICKSVILLE</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>11801</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SEVP &amp; Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-12-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10674</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>620374</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>48967</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Stock Award</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4888</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Stock Award (032423)</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were surrendered to the issuer to cover the tax obligations on shares for which restrictions have lapsed.</footnote>
        <footnote id="F2">The number of shares held directly includes certain shares there were previously held by Stock Awards and that have subsequently vested.</footnote>
        <footnote id="F3">Total includes service based restricted stock units that will vest in shares of Issuer's common stock over the passage of time.</footnote>
        <footnote id="F4">The remaining shares granted under Stock Award on December 1, 2022, pursuant to the Issuer's 2016 Stock Award and Incentive Plan, will vest in two approximately equal annual installments commencing on December 1, 2026.</footnote>
        <footnote id="F5">These remaining shares were granted under Stock Award (032423) on March 24, 2023 pursuant to Issuer's 2020 Omnibus Incentive Plan, and will vest on March 24, 2026.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jan M. Klym, By Power of Attorney</signatureName>
        <signatureDate>2025-12-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
