<SEC-DOCUMENT>0000899243-23-019799.txt : 20231003
<SEC-HEADER>0000899243-23-019799.hdr.sgml : 20231003
<ACCEPTANCE-DATETIME>20231003163015
ACCESSION NUMBER:		0000899243-23-019799
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20231001
FILED AS OF DATE:		20231003
DATE AS OF CHANGE:		20231003

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KELLANOVA
		CENTRAL INDEX KEY:			0000055067
		STANDARD INDUSTRIAL CLASSIFICATION:	GRAIN MILL PRODUCTS [2040]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41755
		FILM NUMBER:		231304246

	BUSINESS ADDRESS:	
		STREET 1:		412 N WELLS ST
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
		BUSINESS PHONE:		2699612000

	MAIL ADDRESS:	
		STREET 1:		412 N WELLS ST
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654

	FORMER NAME:	
		FORMER CONFORMED NAME:	KELLOGG CO
		DATE OF NAME CHANGE:	19920703

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WK Kellogg Co
		CENTRAL INDEX KEY:			0001959348
		STANDARD INDUSTRIAL CLASSIFICATION:	GRAIN MILL PRODUCTS [2040]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE KELLOGG SQUARE
		CITY:			BATTLE CREEK
		STATE:			MI
		ZIP:			49017
		BUSINESS PHONE:		269-961-2000

	MAIL ADDRESS:	
		STREET 1:		ONE KELLOGG SQUARE
		CITY:			BATTLE CREEK
		STATE:			MI
		ZIP:			49017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NORTH AMERICA CEREAL CO.
		DATE OF NAME CHANGE:	20221220
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-10-01</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001959348</issuerCik>
        <issuerName>WK Kellogg Co</issuerName>
        <issuerTradingSymbol>KLG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000055067</rptOwnerCik>
            <rptOwnerName>KELLANOVA</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>412 N. WELLS STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60654</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-10-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>85629489</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>85630489</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-10-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>85630489</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">In connection with the spin-off of WK Kellogg Co (&quot;WK Kellogg&quot;) by Kellanova (f/k/a Kellogg Company), Kellanova received 85,629,489 shares of WK Kellogg common stock, which when combined with the 1,000 shares of common stock held by Kellanova prior thereto, equals the number of WK Kellogg shares distributed by Kellanova in the Distribution, as such term is defined in the Separation and Distribution Agreement by and between Kellanova and WK Kellogg, dated as of September 29, 2023 (the &quot;Separation Agreement&quot;).</footnote>
        <footnote id="F2">In connection with the spin-off of WK Kellogg Co by Kellanova and pursuant to the terms and conditions of the Separation Agreement, Kellanova effected the Distribution on October 2, 2023 and distributed all shares of WK Kellogg Co on a pro rata basis to the holders of record of its common stock as of September 21, 2023, the record date for the Distribution.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Kellanova , By: /s/ John Min, Chief Legal Officer</signatureName>
        <signatureDate>2023-10-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
