<SEC-DOCUMENT>0000014930-19-000100.txt : 20190528
<SEC-HEADER>0000014930-19-000100.hdr.sgml : 20190528
<ACCEPTANCE-DATETIME>20190528175204
ACCESSION NUMBER:		0000014930-19-000100
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190523
FILED AS OF DATE:		20190528
DATE AS OF CHANGE:		20190528

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FOULKES DAVID M
		CENTRAL INDEX KEY:			0001741006

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01043
		FILM NUMBER:		19858920

	MAIL ADDRESS:	
		STREET 1:		C/O BRUNSWICK CORPORATION
		STREET 2:		26125 N RIVERWOOD BLVD. SUITE 500
		CITY:			METTAWA
		STATE:			IL
		ZIP:			60045-3420

	FORMER NAME:	
		FORMER CONFORMED NAME:	FOULKES DAVID
		DATE OF NAME CHANGE:	20180517

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BRUNSWICK CORP
		CENTRAL INDEX KEY:			0000014930
		STANDARD INDUSTRIAL CLASSIFICATION:	ENGINES & TURBINES [3510]
		IRS NUMBER:				360848180
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		26125 N. RIVERWOODS BLVD. SUITE 500
		CITY:			METTAWA
		STATE:			IL
		ZIP:			60045-3420
		BUSINESS PHONE:		8477354700

	MAIL ADDRESS:	
		STREET 1:		26125 N. RIVERWOODS BLVD. SUITE 500
		CITY:			METTAWA
		STATE:			IL
		ZIP:			60045-3420

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BRUNSWICK BALKE COLLENDER CO
		DATE OF NAME CHANGE:	19660919
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_155908030984877.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-05-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000014930</issuerCik>
        <issuerName>BRUNSWICK CORP</issuerName>
        <issuerTradingSymbol>BC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001741006</rptOwnerCik>
            <rptOwnerName>FOULKES DAVID M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BRUNSWICK CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>26125 N. RIVERWOODS BLVD SUITE 500</rptOwnerStreet2>
            <rptOwnerCity>METTAWA</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60045</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-05-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>I</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2747</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>45.54</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3573</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Svgs Plan Trustee</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>63514</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-05-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>I</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2744</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>45.54</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2744.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2744</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Restoration Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The reported phantom stock units acquired under the Company's excess benefit plan (the &quot;Restoration Plan&quot;) and are the economic equivalent of one share of Brunswick Corporation common stock.</footnote>
        <footnote id="F2">The reported phantom stock units held under the Restoration Plan are to be settled upon the reporting person's retirement or other termination of service.  The reporting person may transfer the value of these stock units into an alternative investment account at any time prior to settlement.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By Power of Attorney For: /s/ David M. Foulkes</signatureName>
        <signatureDate>2019-05-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
