<SEC-DOCUMENT>0001567619-20-011560.txt : 20200602
<SEC-HEADER>0001567619-20-011560.hdr.sgml : 20200602
<ACCEPTANCE-DATETIME>20200602191526
ACCESSION NUMBER:		0001567619-20-011560
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200529
FILED AS OF DATE:		20200602
DATE AS OF CHANGE:		20200602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lucareli Michael B
		CENTRAL INDEX KEY:			0001496134

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01373
		FILM NUMBER:		20938578

	MAIL ADDRESS:	
		STREET 1:		1500 DEKOVEN AVE,
		CITY:			RACINE
		STATE:			WI
		ZIP:			53403

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>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-05-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001496134</rptOwnerCik>
            <rptOwnerName>Lucareli Michael B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1500 DEKOVEN AVE.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RACINE</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Finance &amp; CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
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            <transactionDate>
                <value>2020-05-29</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>1970</value>
                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
                    <value>5.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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        <nonDerivativeTransaction>
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                <value>Common stock</value>
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            <transactionDate>
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                    <value>1978</value>
                    <footnoteId id="F1"/>
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                    <value>5.35</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-06-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                    <value>1313</value>
                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
                    <value>5.34</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>199815</value>
                    <footnoteId id="F2"/>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
    </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 971 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 2017 terminated in calendar 2020. 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 8.2% and Annual Revenue Growth was 11.5%, 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 126% of the Target.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Sylvia A. Stein, Attorney in Fact</signatureName>
        <signatureDate>2020-06-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
