<SEC-DOCUMENT>0001392972-18-000072.txt : 20180305
<SEC-HEADER>0001392972-18-000072.hdr.sgml : 20180305
<ACCEPTANCE-DATETIME>20180305161438
ACCESSION NUMBER:		0001392972-18-000072
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180301
FILED AS OF DATE:		20180305
DATE AS OF CHANGE:		20180305

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Schulz Stefan B
		CENTRAL INDEX KEY:			0001340371

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33554
		FILM NUMBER:		18666176

	MAIL ADDRESS:	
		STREET 1:		9625 W 76TH STREET
		CITY:			EDEN PRAIRIE
		STATE:			MN
		ZIP:			55344

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PROS Holdings, Inc.
		CENTRAL INDEX KEY:			0001392972
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
		IRS NUMBER:				760168604
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3100 MAIN STREET
		STREET 2:		SUITE 900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		713-335-5151

	MAIL ADDRESS:	
		STREET 1:		3100 MAIN STREET
		STREET 2:		SUITE 900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_152028446439632.xml
<DESCRIPTION>FORM 4
<TEXT>
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    <documentType>4</documentType>

    <periodOfReport>2018-03-01</periodOfReport>

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    <issuer>
        <issuerCik>0001392972</issuerCik>
        <issuerName>PROS Holdings, Inc.</issuerName>
        <issuerTradingSymbol>PRO</issuerTradingSymbol>
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            <rptOwnerCik>0001340371</rptOwnerCik>
            <rptOwnerName>Schulz Stefan B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3100 MAIN ST.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 900</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77002</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP and CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-03-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>15625</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>31.65</value>
                    <footnoteId id="F1"/>
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                <transactionAcquiredDisposedCode>
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        <nonDerivativeTransaction>
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            <transactionCoding>
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                <transactionCode>F</transactionCode>
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                <directOrIndirectOwnership>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
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            <transactionDate>
                <value>2018-03-01</value>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>15625</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>15625.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>143567</value>
                </sharesOwnedFollowingTransaction>
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                    <value>D</value>
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                <value>Restricted Stock Units</value>
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                <value>2018-03-03</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>20625</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F8"/>
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            <expirationDate>
                <footnoteId id="F8"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                    <value>122942</value>
                    <footnoteId id="F9"/>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The price represents the price of PROS Holdings, Inc. common stock at the close of market on March 1, 2018.</footnote>
        <footnote id="F2">This amount has been corrected to reflect an over-reported tax withholding of 215 shares on Form 4 filed March 7, 2016.</footnote>
        <footnote id="F3">This amount has been corrected to reflect an over-reported grant of 10 shares on Form 4 filed January 10, 2018.</footnote>
        <footnote id="F4">Includes 3,500 shares held in a joint account controlled by Stefan and Mary Schulz.</footnote>
        <footnote id="F5">The price represents the price of PROS Holdings, Inc. common stock at the close of market on March 2, 2018, the previous business day before the vest date of March 3, 2018.</footnote>
        <footnote id="F6">Each restricted stock unit represents the contingent right to receive one share of PROS Holdings, Inc. common stock.</footnote>
        <footnote id="F7">This is the second tranche of a grant awarded on March 24, 2016 in the amount of 62,500 restricted stock units and vests annually, in equal installments, over a four-year period, with a final lapse date of March 1, 2020.</footnote>
        <footnote id="F8">This is the third tranche of a grant awarded on March 3, 2015 in the amount of 82,500 restricted stock units and vests annually, in equal installments, over a four-year period, with a final lapse date of March 1, 2019.</footnote>
        <footnote id="F9">Includes (i) 20,625 unvested restricted stock units, the final tranche of which will vest on March 3, 2019,  and is associated with a March 3, 2015 grant; (ii) 31,250 unvested restricted stock units vesting in equal installments on March 1 over the next two years, with a final lapse date of March 1, 2020, and is associated with a March 24, 2016 grant; (iii) 29,400 unvested restricted stock units vesting in equal installments on January 1 over the next three years, with a final lapse date of January 1, 2021, and is associated with a January 20, 2017 grant; and (iv) 41,667 unvested restricted stock units vesting in equal installments on January 10 over the next four years, with a final lapse date of January 10, 2022, and is associated with a January 8, 2018 grant.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Damian W. Olthoff, attorney-in-fact for Stefan B. Schulz</signatureName>
        <signatureDate>2018-03-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
