<SEC-DOCUMENT>0001127602-25-008794.txt : 20250310
<SEC-HEADER>0001127602-25-008794.hdr.sgml : 20250310
<ACCEPTANCE-DATETIME>20250310061310
ACCESSION NUMBER:		0001127602-25-008794
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250307
FILED AS OF DATE:		20250310
DATE AS OF CHANGE:		20250310

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Marks Steven Irwin
		CENTRAL INDEX KEY:			0001914948
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31666
		FILM NUMBER:		25722037

	MAIL ADDRESS:	
		STREET 1:		C/O FIRST ADVANTAGE CORPORATION
		STREET 2:		1 CONCOURSE PARKWAY NE, SUITE 200
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30328

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST ADVANTAGE CORP
		CENTRAL INDEX KEY:			0001210677
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				843884690
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 CONCOURSE PARKWAY NE, SUITE 200
		STREET 2:		ATTN: BRET T. JARDINE, ESQ.
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30328
		BUSINESS PHONE:		888-314-9761

	MAIL ADDRESS:	
		STREET 1:		1 CONCOURSE PARKWAY NE, SUITE 200
		STREET 2:		ATTN: BRET T. JARDINE, ESQ.
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-07</periodOfReport>

    <issuer>
        <issuerCik>0001210677</issuerCik>
        <issuerName>FIRST ADVANTAGE CORP</issuerName>
        <issuerTradingSymbol>FA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001914948</rptOwnerCik>
            <rptOwnerName>Marks Steven Irwin</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O FIRST ADVANTAGE CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1 CONCOURSE PARKWAY NE, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>ATLANTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30328</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-03-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>13.50</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20189</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>/s/ Steven I. Marks</signatureName>
        <signatureDate>2025-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
