<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2025-10-15</periodOfReport>

    <dateOfOriginalSubmission>2025-10-16</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001783398</issuerCik>
        <issuerName>UWM Holdings Corp</issuerName>
        <issuerTradingSymbol>UWMC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001841794</rptOwnerCik>
            <rptOwnerName>Mat Ishbia</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O UWM HOLDINGS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>585 SOUTH BLVD E</rptOwnerStreet2>
            <rptOwnerCity>PONTIAC</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48341</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001842002</rptOwnerCik>
            <rptOwnerName>SFS HOLDING CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O UWM HOLDINGS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>585 SOUTH BLVD E</rptOwnerStreet2>
            <rptOwnerCity>PONTIAC</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48341</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>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-10-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6800000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8377952</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>UWM Paired Interests</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-10-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6800000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2021-01-21</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6800000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1351882620</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On October 16, 2025, the Reporting Persons filed a Form 4 which inadvertently did not report a conversion of UWM Paired Interests into Class A Common Stock.</footnote>
        <footnote id="F2">Each UWM Paired Interest consists of one share of non-economic voting Class D Common Stock of UWM Holdings Corporation (the &quot;Issuer&quot;) (&quot;Class D Stock&quot;) and one Class B common units of UWM Holdings, LLC (&quot;UWM LLC&quot;) (&quot;Class B Common Units&quot;), a subsidiary of the Issuer. Each UWM Paired Interest is convertible for one share of Class A Common Stock of the Issuer (i) at any time at the option of the holder or (ii) automatically upon transfer to a third person. These shares of Class A Common Stock were acquired by SFS Holding Corp. (&quot;SFS Corp&quot;) upon the conversion of an equal number of UWM Paired Interests.</footnote>
        <footnote id="F3">These securities are held directly by SFS Corp, a 10% holder of the Issuer, and indirectly by Mat Ishbia. Mat Ishbia is the Chief Executive Officer and sole director of SFS Corp and serves as the investment advisor to the trust that owns the voting securities of SFS Corp, and therefore exercises all voting and dispositive power of the securities held by SFS Corp. In addition, trusts for the benefit of Mat Ishbia and his immediate family are shareholders of SFS Corp. By virtue of its relationship with Mat Ishbia, a director and the CEO of the Issuer, SFS Corp may be deemed to be a director by deputization.</footnote>
        <footnote id="F4">The conversion rights related to the UWM Paired Interests do not expire.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Mat Ishbia</signatureName>
        <signatureDate>2025-11-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Mat Ishbia, CEO, for SFS Holding Corp.</signatureName>
        <signatureDate>2025-11-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
