<SEC-DOCUMENT>0001004702-17-000102.txt : 20170331
<SEC-HEADER>0001004702-17-000102.hdr.sgml : 20170331
<ACCEPTANCE-DATETIME>20170331151059
ACCESSION NUMBER:		0001004702-17-000102
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170315
FILED AS OF DATE:		20170331
DATE AS OF CHANGE:		20170331

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OCEANFIRST FINANCIAL CORP
		CENTRAL INDEX KEY:			0001004702
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
		IRS NUMBER:				223412577
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		975 HOOPER AVE
		CITY:			TOMS RIVER
		STATE:			NJ
		ZIP:			08753-8396
		BUSINESS PHONE:		7322404500

	MAIL ADDRESS:	
		STREET 1:		975 HOOPER AVENUE
		CITY:			TOMS RIVER
		STATE:			NJ
		ZIP:			08723

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OCEAN FINANCIAL CORP
		DATE OF NAME CHANGE:	19951208

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McCrosson Dorothy
		CENTRAL INDEX KEY:			0001507668

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11713
		FILM NUMBER:		17729967

	MAIL ADDRESS:	
		STREET 1:		1001 ASBURY AVENUE
		CITY:			OCEAN CITY
		STATE:			NJ
		ZIP:			08226
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>wf-form4a_149098744318435.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2017-03-15</periodOfReport>

    <dateOfOriginalSubmission>2017-03-16</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001004702</issuerCik>
        <issuerName>OCEANFIRST FINANCIAL CORP</issuerName>
        <issuerTradingSymbol>OCFC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001507668</rptOwnerCik>
            <rptOwnerName>McCrosson Dorothy</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O OCEANFIRST BANK</rptOwnerStreet1>
            <rptOwnerStreet2>975 HOOPER AVE.</rptOwnerStreet2>
            <rptOwnerCity>TOMS RIVER</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08754</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2017-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1035</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8715</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>9.99</value>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2012-03-15</value>
            </exerciseDate>
            <expirationDate>
                <value>2021-03-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8579.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8579</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This form is being filed to correct the number of shares awarded to Ms. McCrosson on March 15, 2017.</footnote>
        <footnote id="F2">Restricted shares awarded.  Such shares vest in five equal annual installments beginning on March 1, 2018.  Total includes other restricted shares that vest in the future.</footnote>
        <footnote id="F3">At the Effective Time, each option to purchase Ocean Shore common stock was converted into an option to purchase OceanFirst common stock on the same terms and conditions as were applicable immediately prior to the First-Step Merger, except that the number of shares of OceanFirst common stock issuable upon exercise of a converted Ocean Shore stock option was adjusted by multiplying the number of shares of Ocean Shore common stock that were subject to the Ocean Shore stock option by 1.2084 (and rounding down to the nearest whole share), and the exercise price per share of a converted option was adjusted by dividing the exercise price per share of the Ocean Shore stock option by 1.2084 (and rounding up to the nearest whole cent).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Steven J. Tsimbinos, Power of Attorney</signatureName>
        <signatureDate>2017-03-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
