<SEC-DOCUMENT>0001179929-17-000161.txt : 20170705
<SEC-HEADER>0001179929-17-000161.hdr.sgml : 20170705
<ACCEPTANCE-DATETIME>20170705175210
ACCESSION NUMBER:		0001179929-17-000161
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170630
FILED AS OF DATE:		20170705
DATE AS OF CHANGE:		20170705

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MOLINA HEALTHCARE INC
		CENTRAL INDEX KEY:			0001179929
		STANDARD INDUSTRIAL CLASSIFICATION:	HOSPITAL & MEDICAL SERVICE PLANS [6324]
		IRS NUMBER:				134204626
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 OCEANGATE, SUITE 100
		CITY:			LONG BEACH
		STATE:			CA
		ZIP:			90802
		BUSINESS PHONE:		5624353666

	MAIL ADDRESS:	
		STREET 1:		200 OCEANGATE, SUITE 100
		CITY:			LONG BEACH
		STATE:			CA
		ZIP:			90802

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Barlow Jeff D.
		CENTRAL INDEX KEY:			0001555603

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31719
		FILM NUMBER:		17948891

	MAIL ADDRESS:	
		STREET 1:		300 UNIVERSITY AVENUE, SUITE 100
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95825
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_149929150301097.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-06-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001179929</issuerCik>
        <issuerName>MOLINA HEALTHCARE INC</issuerName>
        <issuerTradingSymbol>MOH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001555603</rptOwnerCik>
            <rptOwnerName>Barlow Jeff D.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>300 UNIVERSITY AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>SACRAMENTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95825</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Legal Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-06-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>432</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>54.26</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>60444</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The shares were acquired under the Molina Healthcare, Inc. 2011 Employee Stock Purchase Plan.</footnote>
        <footnote id="F2">Represents the closing price of Issuer's common stock on December 30, 2016. The purchase price is based on the stock's lower market price as of the two following dates: (1) January 1, 2017, the first day of the ESPP offering period, and (2) June 30, 2017, the last day of the ESPP offering period.</footnote>
        <footnote id="F3">The shares vest as follows: (i) 9,474 shares shall vest in one-third increments over three years, on each of March 1, 2018, March 1, 2019, and March 1, 2020; (ii) 3,132 shares shall vest based on the Company's 2017 after tax profit margin; (iii) 3,132 shares shall vest based on the Company's 2018 after tax profit margin; (iv) 3,132 shares shall vest based upon the Company's 2017 STARS ratings; (v) 4,698 shares shall vest upon the Company's achievement of certain business development targets; (vi) 6,263 shares shall vest in two increments on each of March 7, 2018 and March 7, 2019; continued</footnote>
        <footnote id="F4">(vii) 1,885 shares shall vest based on the Company's 2017 annual premium revenue achievement; (viii) 1,885 shares shall vest based on the Company's 2017 net profit margin achievement; (ix) 1,885 shares shall vest based on pre-tax income in fiscal year 2017; (x) 1,885 shares shall vest upon the Company's achieving a three-year Total Stockholder Return (TSR) for the three-year period ending December 31, 2017 as determined by ISS calculations that is greater than the median TSR achieved by the Company's 2015 ISS peer group; and (xi) 1,885 shares shall vest on April 1, 2018; the remainder of the shares are vested.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Jeff D. Barlow</signatureName>
        <signatureDate>2017-07-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
