<SEC-DOCUMENT>0000916365-19-000160.txt : 20191113
<SEC-HEADER>0000916365-19-000160.hdr.sgml : 20191113
<ACCEPTANCE-DATETIME>20191113170402
ACCESSION NUMBER:		0000916365-19-000160
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20191111
FILED AS OF DATE:		20191113
DATE AS OF CHANGE:		20191113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FRAZELL CHAD MICHAEL
		CENTRAL INDEX KEY:			0001618200

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23314
		FILM NUMBER:		191214796

	MAIL ADDRESS:	
		STREET 1:		TRACTOR SUPPLY COMPANY
		STREET 2:		5401 VIRGINIA WAY
		CITY:			BRENTWOOD
		STATE:			TN
		ZIP:			37027

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TRACTOR SUPPLY CO /DE/
		CENTRAL INDEX KEY:			0000916365
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-BUILDING MATERIALS, HARDWARE, GARDEN SUPPLY [5200]
		IRS NUMBER:				133139732
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1228

	BUSINESS ADDRESS:	
		STREET 1:		5401 VIRGINIA WAY
		CITY:			BRENTWOOD
		STATE:			TN
		ZIP:			37027
		BUSINESS PHONE:		6154404600

	MAIL ADDRESS:	
		STREET 1:		5401 VIRGINIA WAY
		CITY:			BRENTWOOD
		STATE:			TN
		ZIP:			37027
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_157368262573996.xml
<DESCRIPTION>FORM 4
<TEXT>
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        <issuerName>TRACTOR SUPPLY CO /DE/</issuerName>
        <issuerTradingSymbol>TSCO</issuerTradingSymbol>
    </issuer>

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            <rptOwnerCik>0001618200</rptOwnerCik>
            <rptOwnerName>FRAZELL CHAD MICHAEL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRACTOR SUPPLY COMPANY</rptOwnerStreet1>
            <rptOwnerStreet2>5401 VIRGINIA WAY</rptOwnerStreet2>
            <rptOwnerCity>BRENTWOOD</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>37027</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP Human Resources</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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                    <value>7835</value>
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                <transactionPricePerShare>
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                </transactionPricePerShare>
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                    <value>A</value>
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                <natureOfOwnership>
                    <value>Stock Purchase Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
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            <securityTitle>
                <value>Employee stock option</value>
            </securityTitle>
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                <value>73.18</value>
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            <transactionDate>
                <value>2019-11-11</value>
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                <transactionFormType>4</transactionFormType>
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                <transactionShares>
                    <value>7835</value>
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                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
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            <expirationDate>
                <value>2027-02-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>7835.0</value>
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            <securityTitle>
                <value>Employee stock option</value>
            </securityTitle>
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                <value>67.28</value>
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            <transactionDate>
                <value>2019-11-11</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                    <value>5606</value>
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                    <value>D</value>
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            <exerciseDate>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2028-02-07</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5606.0</value>
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            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11213</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Granted pursuant to the Tractor Supply Company 2009 Stock Incentive Plan.  The shares subject to this option vested and became exercisable, or will vest, subject to conditions, and become exercisable as follows: 33 1/3% on February 8, 2018, 33 1/3% on February 8, 2019, and 33 1/3% on February 8, 2020.</footnote>
        <footnote id="F2">Granted pursuant to the Tractor Supply Company 2009 Stock Incentive Plan. The shares subject to this option vested and became exercisable, or will vest, subject to conditions, and become exercisable as follows: 33 1/3% on February 7, 2019, 33 1/3% on February 7, 2020, and 33 1/3% on February 7, 2021.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Chad M. Frazell by: /s/ Kristopher S. Bybee, as Attorney-in-fact</signatureName>
        <signatureDate>2019-11-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
