<SEC-DOCUMENT>0000790051-21-000098.txt : 20210302
<SEC-HEADER>0000790051-21-000098.hdr.sgml : 20210302
<ACCEPTANCE-DATETIME>20210302160417
ACCESSION NUMBER:		0000790051-21-000098
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210301
FILED AS OF DATE:		20210302
DATE AS OF CHANGE:		20210302

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OSTRANDER GREGG A
		CENTRAL INDEX KEY:			0001071491

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09278
		FILM NUMBER:		21703488

	MAIL ADDRESS:	
		STREET 1:		4600 SLEEPYTIME DRIVE
		CITY:			BOULDER
		STATE:			CO
		ZIP:			80301

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CARLISLE COMPANIES INC
		CENTRAL INDEX KEY:			0000790051
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED RUBBER PRODUCTS, NEC [3060]
		IRS NUMBER:				311168055
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		16430 N. SCOTTSDALE RD.
		STREET 2:		SUITE 400
		CITY:			SCOTTSDALE
		STATE:			AZ
		ZIP:			85254
		BUSINESS PHONE:		480-781-5000

	MAIL ADDRESS:	
		STREET 1:		16430 N. SCOTTSDALE RD.
		STREET 2:		SUITE 400
		CITY:			SCOTTSDALE
		STATE:			AZ
		ZIP:			85254
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_161471902960151.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-03-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000790051</issuerCik>
        <issuerName>CARLISLE COMPANIES INC</issuerName>
        <issuerTradingSymbol>CSL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001071491</rptOwnerCik>
            <rptOwnerName>OSTRANDER GREGG A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CARLISLE COMPANIES INCORPORATED</rptOwnerStreet1>
            <rptOwnerStreet2>16430 N. SCOTTSDALE ROAD, SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>SCOTTSDALE</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85254</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-03-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>81</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>147.95</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>81.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22968</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents additional restricted stock units acquired as a result of the quarterly dividend declared and paid by the issuer. Each restricted stock unit represents a right to receive one share of the issuer's common stock.</footnote>
        <footnote id="F2">The restricted stock units were fully vested on the date of grant and the vested shares will be delivered to the reporting person upon the reporting person's termination of service as a director of the issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Gregg A. Ostrander by Ronald P. Fuss, attorney-in-fact</signatureName>
        <signatureDate>2021-03-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
