<SEC-DOCUMENT>0001666071-19-000120.txt : 20190924
<SEC-HEADER>0001666071-19-000120.hdr.sgml : 20190924
<ACCEPTANCE-DATETIME>20190924164218
ACCESSION NUMBER:		0001666071-19-000120
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190923
FILED AS OF DATE:		20190924
DATE AS OF CHANGE:		20190924

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Laube Lynne Marie
		CENTRAL INDEX KEY:			0001730687

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38386
		FILM NUMBER:		191111254

	MAIL ADDRESS:	
		STREET 1:		C/O CARDLYTICS, INC.
		STREET 2:		675 PONCE DE LEON AVENUE NE, SUITE 6000
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30308

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cardlytics, Inc.
		CENTRAL INDEX KEY:			0001666071
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				263039436
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		675 PONCE DE LEON AVENUE, NE
		STREET 2:		SUITE 6000
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30308
		BUSINESS PHONE:		888-798-5802

	MAIL ADDRESS:	
		STREET 1:		675 PONCE DE LEON AVENUE, NE
		STREET 2:		SUITE 6000
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30308
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_156935772264573.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-09-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001666071</issuerCik>
        <issuerName>Cardlytics, Inc.</issuerName>
        <issuerTradingSymbol>CDLX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001730687</rptOwnerCik>
            <rptOwnerName>Laube Lynne Marie</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CARDLYTICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>675 PONCE DE LEON AVENUE NE, SUITE 6000</rptOwnerStreet2>
            <rptOwnerCity>ATLANTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30308</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Operating Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-09-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>730</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>36</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20755</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-09-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>730</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>36</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20755</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>287997</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Keegan George Allbright (the &quot;KGA GRAT&quot;) on May 14, 2019.</footnote>
        <footnote id="F2">The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $35.66 to $36.36, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4.</footnote>
        <footnote id="F3">The reportable securities are held by the 2013 Lynne Marie Laube GRAT fbo Keegan George Allbright (the &quot;KGA GRAT&quot;). The Reporting Person is the trustee of the KGA GRAT.</footnote>
        <footnote id="F4">These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Hayley Marie Allbright (the &quot;HMA GRAT&quot;) on May 14, 2019.</footnote>
        <footnote id="F5">The reportable securities are held by the 2013 Lynne Marie Laube GRAT fbo Hayley Marie Allbright (the &quot;HMA GRAT&quot;). The Reporting Person is the trustee of the HMA GRAT.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kirk Somers, Attorney-in-Fact</signatureName>
        <signatureDate>2019-09-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
