<SEC-DOCUMENT>0001968582-25-001044.txt : 20251110
<SEC-HEADER>0001968582-25-001044.hdr.sgml : 20251110
<ACCEPTANCE-DATETIME>20251110165104
ACCESSION NUMBER:		0001968582-25-001044
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251110
DATE AS OF CHANGE:		20251110

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FAIR ISAAC CORP
		CENTRAL INDEX KEY:			0000814547
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				941499887
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-11689
		FILM NUMBER:		251467095

	BUSINESS ADDRESS:	
		STREET 1:		5 WEST MENDENHALL
		STREET 2:		SUITES 105
		CITY:			BOZEMAN
		STATE:			MT
		ZIP:			59715
		BUSINESS PHONE:		(406) 982-7276

	MAIL ADDRESS:	
		STREET 1:		5 WEST MENDENHALL
		STREET 2:		SUITES 105
		CITY:			BOZEMAN
		STATE:			MT
		ZIP:			59715

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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LANSING WILLIAM J
		CENTRAL INDEX KEY:			0001074500
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-CATALOG & MAIL-ORDER HOUSES [5961]
		ORGANIZATION NAME:           	07 Trade & Services
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1228

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		FAIR ISAAC CORPORATION
		STREET 2:		5 WEST MENDENHALL, SUITE 105
		CITY:			BOZEMAN
		STATE:			MT
		ZIP:			59715
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <!-- Generated by Workiva -->
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001074500</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000814547</issuerCik>
      <issuerName>Fair Isaac Corporation</issuerName>
      <secFileNumber>001-11689</secFileNumber>
      <issuerAddress>
        <com:street1>5 West Mendenhall,  Suite 105</com:street1>
        <com:city>Bozeman</com:city>
        <com:stateOrCountry>MT</com:stateOrCountry>
        <com:zipCode>59715</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>406-982-7276</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>William J. Lansing</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>President,  CEO,  and Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>J.P. Morgan Securities LLC</name>
        <address>
          <com:street1>270 Park Avenue, 10th Floor</com:street1>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10017</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>2400</noOfUnitsSold>
      <aggregateMarketValue>4176000</aggregateMarketValue>
      <noOfUnitsOutstanding>23709047</noOfUnitsOutstanding>
      <approxSaleDate>11/10/2025</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>11/10/2025</acquiredDate>
      <natureOfAcquisitionTransaction>Gift / Transfer</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Lansing Revocable Trust, who acquired the shares on 12/17/15</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2400</amountOfSecuritiesAcquired>
      <paymentDate>11/10/2025</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William J. Lansing</name>
        <address>
          <com:street1>C/o Fair Isaac Corporation</com:street1>
          <com:street2>5 West Mendenhall, Suite 105</com:street2>
          <com:city>Bozeman</com:city>
          <com:stateOrCountry>MT</com:stateOrCountry>
          <com:zipCode>59715</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/28/2025</saleDate>
      <amountOfSecuritiesSold>6010</amountOfSecuritiesSold>
      <grossProceeds>9026046</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William J. Lansing</name>
        <address>
          <com:street1>C/o Fair Isaac Corporation</com:street1>
          <com:street2>5 West Mendenhall, Suite 105</com:street2>
          <com:city>Bozeman</com:city>
          <com:stateOrCountry>MT</com:stateOrCountry>
          <com:zipCode>59715</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>09/09/2025</saleDate>
      <amountOfSecuritiesSold>6011</amountOfSecuritiesSold>
      <grossProceeds>9241910</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William J. Lansing</name>
        <address>
          <com:street1>C/o Fair Isaac Corporation</com:street1>
          <com:street2>5 West Mendenhall, Suite 105</com:street2>
          <com:city>Bozeman</com:city>
          <com:stateOrCountry>MT</com:stateOrCountry>
          <com:zipCode>59715</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>10/14/2025</saleDate>
      <amountOfSecuritiesSold>6011</amountOfSecuritiesSold>
      <grossProceeds>9826096</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>The shares covered by this filing will be sold by the Lansing Foundation, William J. Lansing is a Board Member.</remarks>
    <noticeSignature>
      <noticeDate>11/10/2025</noticeDate>
      <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for William J.  Lansing</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
