<SEC-DOCUMENT>0001818383-21-000120.txt : 20211021
<SEC-HEADER>0001818383-21-000120.hdr.sgml : 20211021
<ACCEPTANCE-DATETIME>20211021215119
ACCESSION NUMBER:		0001818383-21-000120
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211014
FILED AS OF DATE:		20211021
DATE AS OF CHANGE:		20211021

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Arasu Venmal (Raji)
		CENTRAL INDEX KEY:			0001641435

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39671
		FILM NUMBER:		211338600

	MAIL ADDRESS:	
		STREET 1:		25501 WEST VALLEY PARKWAY
		STREET 2:		SUITE 300
		CITY:			OLATHE
		STATE:			KS
		ZIP:			66061

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MediaAlpha, Inc.
		CENTRAL INDEX KEY:			0001818383
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE CARRIERS, NEC [6399]
		IRS NUMBER:				851854133
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		700 SOUTH FLOWER STREET
		STREET 2:		SUITE 640
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90017
		BUSINESS PHONE:		619-393-9368

	MAIL ADDRESS:	
		STREET 1:		700 SOUTH FLOWER STREET
		STREET 2:		SUITE 640
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90017
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_163486744666928.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-10-14</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001818383</issuerCik>
        <issuerName>MediaAlpha, Inc.</issuerName>
        <issuerTradingSymbol>MAX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001641435</rptOwnerCik>
            <rptOwnerName>Arasu Venmal (Raji)</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MEDIAALPHA, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>700 SOUTH FLOWER STREET, SUITE 640</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-10-14</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8163</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8163.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20006</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents grant of restricted stock units to the Reporting Person under the Issuer's Omnibus Incentive Plan, in connection with the Reporting Person's service on the Issuer's board of directors. The restricted stock units will vest on the earlier of the first anniversary of the grant date or the date of the Issuer's 2022 Annual Meeting, subject to the Reporting Person's continued service through the applicable vesting date.</footnote>
        <footnote id="F2">Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock upon vesting.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Lance Martinez, attorney-in-fact</signatureName>
        <signatureDate>2021-10-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
