<SEC-DOCUMENT>0001179110-21-002786.txt : 20210303
<SEC-HEADER>0001179110-21-002786.hdr.sgml : 20210303
<ACCEPTANCE-DATETIME>20210303193040
ACCESSION NUMBER:		0001179110-21-002786
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210302
FILED AS OF DATE:		20210303
DATE AS OF CHANGE:		20210303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McCarthy Cathy L
		CENTRAL INDEX KEY:			0001170433

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09973
		FILM NUMBER:		21711632

	MAIL ADDRESS:	
		STREET 1:		4695 MACARTHUR COURT
		STREET 2:		8TH FLOOR
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660

	FORMER NAME:	
		FORMER CONFORMED NAME:	WOOD CATHY L
		DATE OF NAME CHANGE:	20020402

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MIDDLEBY CORP
		CENTRAL INDEX KEY:			0000769520
		STANDARD INDUSTRIAL CLASSIFICATION:	REFRIGERATION & SERVICE INDUSTRY MACHINERY [3580]
		IRS NUMBER:				363352497
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			0102

	BUSINESS ADDRESS:	
		STREET 1:		1400 TOASTMASTER DRIVE
		CITY:			ELGIN
		STATE:			IL
		ZIP:			60120
		BUSINESS PHONE:		8477413300

	MAIL ADDRESS:	
		STREET 1:		1400 TOASTMASTER DRIVE
		CITY:			ELGIN
		STATE:			IL
		ZIP:			60120
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4/A -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2021-03-02</periodOfReport>

    <dateOfOriginalSubmission>2021-03-03</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000769520</issuerCik>
        <issuerName>MIDDLEBY CORP</issuerName>
        <issuerTradingSymbol>MIDD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001170433</rptOwnerCik>
            <rptOwnerName>McCarthy Cathy L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE MIDDLEBY CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1400 TOASTMASTER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ELGIN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60120</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>804</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8580</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares represent time-based restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock on the applicable vesting date. These restricted stock units will vest in full on March 2, 2022. Vested shares will be issued to the reporting person after the applicable vesting date.</footnote>
        <footnote id="F2">Consists of (i) 7,776 shares of Common Stock; and (ii) the 804 restricted stock units that are reported on this Form 4.</footnote>
        <footnote id="F3">This form corrects the Form 4 previously filed for this transaction to correct the description of the restricted stock units.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Michael D. Thompson POA</signatureName>
        <signatureDate>2021-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
