<SEC-DOCUMENT>0001214659-15-008291.txt : 20151209
<SEC-HEADER>0001214659-15-008291.hdr.sgml : 20151209
<ACCEPTANCE-DATETIME>20151209203506
ACCESSION NUMBER:		0001214659-15-008291
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20151208
FILED AS OF DATE:		20151209
DATE AS OF CHANGE:		20151209

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FAIR ISAAC CORP
		CENTRAL INDEX KEY:			0000814547
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		IRS NUMBER:				941499887
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		181 METRO DRIVE
		STREET 2:		SUITE 700
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
		BUSINESS PHONE:		(408) 535-1500

	MAIL ADDRESS:	
		STREET 1:		181 METRO DRIVE
		STREET 2:		SUITE 700
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FAIR ISAAC & COMPANY INC
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pung Michael J
		CENTRAL INDEX KEY:			0001301887

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11689
		FILM NUMBER:		151279492

	MAIL ADDRESS:	
		STREET 1:		181 METRO DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>marketforms-33628.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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        <issuerName>FAIR ISAAC CORP</issuerName>
        <issuerTradingSymbol>FICO</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Pung Michael J</rptOwnerName>
        </reportingOwnerId>
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            <rptOwnerStreet1>181 METRO DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN JOSE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95110</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>EVP &amp; CFO</officerTitle>
            <otherText></otherText>
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                    <value>A</value>
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                <value>2016-12-08</value>
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    <footnotes>
        <footnote id="F1">Shares withheld by Company for payment of taxes due at vesting from earned market share units and earned performance share units.</footnote>
        <footnote id="F2">Common stock holdings include ESPP reinvested dividends.</footnote>
        <footnote id="F3">Each earned market share unit represents a right to receive one share of Fair Isaac common stock contingent upon continued employment.</footnote>
        <footnote id="F4">As previously reported in a prior Form 4 footnote, on December 13, 2013, the reporting person was granted a target award of 8,723 market share units.  The award vests in three equal annual installments from the grant date based on the Company's satisfaction of certain performance criteria for each of the performance periods ending November 30, 2014, 2015 and 2016.  The performance criteria for 2014 were met and reported, resulting in an award of 2,675 market share units which vested on December 13, 2014.  The performance criteria for 2015 were met, resulting in the award of 5,816 market share units which will vest on December 13, 2015.</footnote>
        <footnote id="F5">No expiration date.</footnote>
        <footnote id="F6">On December 8, 2014, the reporting person was granted a target award of 8,676 market share units.   The award is scheduled to vest in three equal annual installments from the grant date based on the Company's satisfaction of certain performance criteria for each of the performance periods ending November 30, 2015, 2016 and 2017.  The performance criteria for 2015 were met, resulting in the award of 5,784 market share units which vest immediately.</footnote>
        <footnote id="F7">Each earned performance share unit represents a right to receive one share of Fair Isaac common stock contingent upon continued employment</footnote>
        <footnote id="F8">The performance share units vest in three equal annual installments commencing on this date and one share will be delivered to the reporting person for each vested unit as soon as practicable thereafter.</footnote>
        <footnote id="F9">Each restricted stock unit represents a right to receive one share of Fair Isaac common stock contingent upon continued employment.</footnote>
        <footnote id="F10">The restricted stock units vest in four equal annual installments commencing on this date and vested shares will be delivered to the reporting person as soon as practicable thereafter.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Nancy E. Fraser, Attorney-in-fact</signatureName>
        <signatureDate>2015-12-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
