<SEC-DOCUMENT>0001490281-18-000097.txt : 20180914
<SEC-HEADER>0001490281-18-000097.hdr.sgml : 20180914
<ACCEPTANCE-DATETIME>20180914182727
ACCESSION NUMBER:		0001490281-18-000097
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180912
FILED AS OF DATE:		20180914
DATE AS OF CHANGE:		20180914

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LEFKOFSKY ERIC P
		CENTRAL INDEX KEY:			0001114357

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35335
		FILM NUMBER:		181072107

	MAIL ADDRESS:	
		STREET 1:		501 SILVERSIDE ROAD SUITE 87F
		CITY:			WILMONGTON
		STATE:			DE
		ZIP:			19809

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Groupon, Inc.
		CENTRAL INDEX KEY:			0001490281
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING AGENCIES [7311]
		IRS NUMBER:				270903295
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 WEST CHICAGO AVENUE, SUITE 400
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
		BUSINESS PHONE:		(312) 334-1579

	MAIL ADDRESS:	
		STREET 1:		600 WEST CHICAGO AVENUE, SUITE 400
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_153696403094091.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-09-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001490281</issuerCik>
        <issuerName>Groupon, Inc.</issuerName>
        <issuerTradingSymbol>GRPN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001114357</rptOwnerCik>
            <rptOwnerName>LEFKOFSKY ERIC P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GROUPON, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>600 WEST CHICAGO AVENUE</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60654</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-09-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>750000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.82</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>34984594</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Green Media LLC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-09-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>750000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.81</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>34234594</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Green Media LLC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1570269</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10150400</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Lefkofsky Family 2016 GRAT</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40000000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Lefkofsky Family 2018 GRAT</value>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Deferred Stock Unit Award (Right to Receive)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F8"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F8"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>53521.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>53521</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The transactions reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. The reported price reflects the weighted average sale price per share for the transactions on September 12, 2018. The price per share for such transactions ranged from $3.73 to $3.94. Full information regarding the number of shares sold at each separate price will be provided to the United States Securities and Exchange Commission, the Issuer or a security holder of the Issuer upon a request for such information.</footnote>
        <footnote id="F2">The amount of shares reported on this line reflects an annuity distribution by the Lefkofsky Family 2016 GRAT to Green Media LLC.</footnote>
        <footnote id="F3">The shares of Common Stock reported on this line are held by Green Media, LLC, an entity owned by Eric P. Lefkofsky (50%) and Elizabeth Kramer Lefkofsky (50%). Mr. Lefkofsky shares voting and investment control with respect to the shares held by Green Media, LLC.</footnote>
        <footnote id="F4">The transactions reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. The reported price reflects the weighted average sale price per share for the transactions on September 13, 2018. The price per share for such transactions ranged from $3.78 to $3.88. Full information regarding the number of shares sold at each separate price will be provided to the United States Securities and Exchange Commission, the Issuer or a security holder of the Issuer upon a request for such information.</footnote>
        <footnote id="F5">The amount of shares reported on this line includes previously reported restricted stock unit awards that are subject to Mr. Lefkofsky's continued service as a director of the Issuer through the vesting date.</footnote>
        <footnote id="F6">The shares of Common Stock reported on this line are held by the Lefkofsky Family 2016 GRAT.</footnote>
        <footnote id="F7">The shares of Common Stock reported on this line are held by the Lefkofsky Family 2018 GRAT.</footnote>
        <footnote id="F8">Under the Groupon, Inc. Non-Employee Director Compensation Plan, Deferred Stock Units (&quot;DSUs&quot;) represent a right to receive shares of the Groupon's Common Stock (or, in the sole discretion of the Groupon's Board of Directors following a change in control, cash, securities or a combination of cash and securities equal to the fair market value thereof) upon termination of service as a Director of Groupon. Mr. Lefkofsky has elected to receive DSUs in lieu of the annual retainer fees payable for services on the Issuer's Board of Directors and any committees thereof. The DSUs are awarded on the date such fees would otherwise be payable (i.e., quarterly in arrears). The DSUs are immediately vested.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Erin G. Stone, by Power of Attorney</signatureName>
        <signatureDate>2018-09-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
