<SEC-DOCUMENT>0001209191-21-027919.txt : 20210422
<SEC-HEADER>0001209191-21-027919.hdr.sgml : 20210422
<ACCEPTANCE-DATETIME>20210422105800
ACCESSION NUMBER:		0001209191-21-027919
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210420
FILED AS OF DATE:		20210422
DATE AS OF CHANGE:		20210422

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sachs Gregory Joel
		CENTRAL INDEX KEY:			0001798982

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06365
		FILM NUMBER:		21843744

	MAIL ADDRESS:	
		STREET 1:		APOGEE ENTERPRISES, INC.
		STREET 2:		4400 WEST 78TH STREET, SUITE 520
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55435

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			APOGEE ENTERPRISES, INC.
		CENTRAL INDEX KEY:			0000006845
		STANDARD INDUSTRIAL CLASSIFICATION:	GLASS PRODUCTS, MADE OF PURCHASED GLASS [3231]
		IRS NUMBER:				410919654
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			0227

	BUSINESS ADDRESS:	
		STREET 1:		4400 WEST 78TH STREET
		STREET 2:		SUITE 520
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55435
		BUSINESS PHONE:		6128351874

	MAIL ADDRESS:	
		STREET 1:		4400 WEST 78TH STREET
		STREET 2:		SUITE 520
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55435

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	APOGEE ENTERPRISES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HARMON GLASS CO INC
		DATE OF NAME CHANGE:	19720623
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-04-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000006845</issuerCik>
        <issuerName>APOGEE ENTERPRISES, INC.</issuerName>
        <issuerTradingSymbol>APOG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001798982</rptOwnerCik>
            <rptOwnerName>Sachs Gregory Joel</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>APOGEE ENTERPRISES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>4400 WEST 78TH STREET, SUITE 520</rptOwnerStreet2>
            <rptOwnerCity>MINNEAPOLIS</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55435</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Procurement Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-04-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5186</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24325</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance Share Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.00</value>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-04-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2593</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2024-04-20</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2593</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2593</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares vest over a three year vesting period with one-third of the shares vesting on 4/30/2022, 4/30/2023 and 4/30/2024.</footnote>
        <footnote id="F2">Includes shares acquired under the Employee Stock Purchase Plan as of 3/31/21 and shares of restricted stock granted under the 2019 Stock Incentive Plan.</footnote>
        <footnote id="F3">Settled 1-for-1.</footnote>
        <footnote id="F4">The actual number of performance shares the reporting person will receive at the end of the performance period will be based on pre-determined corporate financial performance criteria.  If the threshold level of performance is not met, no performance shares will be issued pursuant to the Performance Award Agreement.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Gregory J. Sachs</signatureName>
        <signatureDate>2021-04-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.4_980422
<SEQUENCE>2
<FILENAME>poa.txt
<DESCRIPTION>POA DOCUMENT
<TEXT>
POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that I, Gregory J. Sachs,
hereby constitute and appoint Meghan M. Elliott, Ryan Tollgaard, David
Wright Walstrom and Judith A. Stone  and each of them, my true
and lawful attorneys-in-fact and agents, with full power of
substitution and resubstitution for me and in my name, place and
stead, to sign any reports on Form 3 (Initial Statement of Beneficial
Ownership of Securities), Form 4 (Statement of Changes in Beneficial
Ownership of Securities) and Form 5 (Annual Statement of Changes in
Beneficial Ownership of Securities) relating to transactions by me
in Common Stock or other securities of Apogee Enterprises, Inc. and
all amendments thereto, and to file the same, with the Securities
and Exchange Commission and the appropriate securities exchange,
granting unto said attorneys-in-fact and agents, and each of them,
or their substitutes, full power and authority to do and perform each
and every act and thing requisite or necessary to be done in and about
the premises, as fully to all intents and purposes as I might or could
do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, and each of them, or their substitutes,
may lawfully do or cause to be done by virtue hereof.  This Power of
Attorney shall be effective until such time as I deliver a written
revocation thereof to the above-named attorneys-in-fact and agents.


By: /s/ Gregory J. Sachs
	Gregory J. Sachs

Date:  September 3, 2020
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
