<SEC-DOCUMENT>0001490281-16-000069.txt : 20160104
<SEC-HEADER>0001490281-16-000069.hdr.sgml : 20160104
<ACCEPTANCE-DATETIME>20160104181309
ACCESSION NUMBER:		0001490281-16-000069
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20151231
FILED AS OF DATE:		20160104
DATE AS OF CHANGE:		20160104

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Williams Rich
		CENTRAL INDEX KEY:			0001641180

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35335
		FILM NUMBER:		161319619

	MAIL ADDRESS:	
		STREET 1:		600 W. CHICAGO AVENUE SUITE 400
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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        <issuerCik>0001490281</issuerCik>
        <issuerName>Groupon, Inc.</issuerName>
        <issuerTradingSymbol>GRPN</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Williams Rich</rptOwnerName>
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        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GROUPON, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>600 WEST CHICAGO AVENUE, SUITE 620</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60654</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
            <otherText></otherText>
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    </reportingOwner>

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                <transactionPricePerShare>
                    <value>0</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <footnoteId id="F3"/>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
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                    <value>25000.0</value>
                </underlyingSecurityShares>
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                    <value>D</value>
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                <footnoteId id="F5"/>
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                <footnoteId id="F5"/>
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                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
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                </sharesOwnedFollowingTransaction>
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    <footnotes>
        <footnote id="F1">Shares withheld by the issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units. This is not an open market sale of securities.</footnote>
        <footnote id="F2">Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.</footnote>
        <footnote id="F3">The restricted stock units reported on this line will vest in equal increments on the last day of last month of each calendar quarter through December 31, 2017, subject to Mr. Williams' continued employment with the Company through each vesting date.</footnote>
        <footnote id="F4">16,624 of the restricted stock units reported on this line vested on December 31, 2015; 68,900 of the restricted stock units reported on this line will vest quarterly in equal increments during calendar year 2016, beginning on March 31, 2016, and 152,152 of the restricted stock units will vest quarterly in equal increments during calendar year 2017,  beginning on March 31, 2017, in each case subject to Mr. Williams' continued employment with the Company through each vesting date.</footnote>
        <footnote id="F5">118,250 of the restricted stock units reported on this line vested on December 31, 2015; 81,700 of the restricted stock units reported on this line will vest quarterly in equal increments during calendar year 2016, beginning on March 31, 2016, and 220,609 of the restricted stock units will vest quarterly in equal increments during calendar year 2017, beginning on March 31, 2017, in each case subject to Mr. Williams' continued employment with the Company through each vesting date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Erin G. Stone, by Power of Attorney</signatureName>
        <signatureDate>2016-01-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
