<SEC-DOCUMENT>0001140361-18-027440.txt : 20180605
<SEC-HEADER>0001140361-18-027440.hdr.sgml : 20180605
<ACCEPTANCE-DATETIME>20180605183056
ACCESSION NUMBER:		0001140361-18-027440
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180601
FILED AS OF DATE:		20180605
DATE AS OF CHANGE:		20180605

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BURKE THOMAS ANDREW
		CENTRAL INDEX KEY:			0001273477

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01373
		FILM NUMBER:		18882547

	MAIL ADDRESS:	
		STREET 1:		17000 ROTUNDA DRIVE
		CITY:			DEARBORN
		STATE:			MI
		ZIP:			48120

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MODINE MANUFACTURING CO
		CENTRAL INDEX KEY:			0000067347
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				390482000
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		1500 DEKOVEN AVE
		CITY:			RACINE
		STATE:			WI
		ZIP:			53403
		BUSINESS PHONE:		2626361200

	MAIL ADDRESS:	
		STREET 1:		1500 DEKOVEN AVE
		CITY:			RACINE
		STATE:			WI
		ZIP:			53403
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-06-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000067347</issuerCik>
        <issuerName>MODINE MANUFACTURING CO</issuerName>
        <issuerTradingSymbol>MOD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001273477</rptOwnerCik>
            <rptOwnerName>BURKE THOMAS ANDREW</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1500 DEKOVEN AVE.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RACINE</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <value>Common stock</value>
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            <transactionDate>
                <value>2018-06-01</value>
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            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>4705</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>18.15</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                    <footnoteId id="F3"/>
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                <directOrIndirectOwnership>
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                <value>Common stock</value>
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                </transactionAcquiredDisposedCode>
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                    <footnoteId id="F2"/>
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                <directOrIndirectOwnership>
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    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares disposed of in a private transaction to cover tax withholding.</footnote>
        <footnote id="F2">This total includes 8165 units of Modine common stock held in the Reporting Person's Modine 401(k) Retirement Plan account.</footnote>
        <footnote id="F3">The performance period for Performance Stock under the long-term incentive compensation plan initiated in June 2015 terminated in calendar 2018. The amount of the award varied based upon the achievement of Threshold, Target or Maximum levels. Under that plan, the Company used two measures to determine the payouts: Three-Year Average ROACE (&quot;ROACE&quot;) and Annual Revenue Growth. The Company's ROACE for the performance period was 7.9% and Annual Revenue Growth was 13.8%, both of which exceeded the Threshold level for those performance measures. As a result, in accordance with the long-term incentive compensation plan, the Company issued shares of unrestricted stock at approximately 138% of the Target.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Sylvia A. Stein, Attorney in Fact</signatureName>
        <signatureDate>2018-06-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
