<SEC-DOCUMENT>0001209191-21-027917.txt : 20210422
<SEC-HEADER>0001209191-21-027917.hdr.sgml : 20210422
<ACCEPTANCE-DATETIME>20210422105558
ACCESSION NUMBER:		0001209191-21-027917
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:			Hayes Maureen Ann
		CENTRAL INDEX KEY:			0001815977

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06365
		FILM NUMBER:		21843737

	MAIL ADDRESS:	
		STREET 1:		4400 WEST 78TH STREET
		STREET 2:		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>0001815977</rptOwnerCik>
            <rptOwnerName>Hayes Maureen Ann</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4400 WEST 78TH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>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 Information 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>4754</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31493</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1214</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance Share Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.00</value>
            </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>2377</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>2377</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2377</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 restricted stock awards under the 2009 Stock Incentive Plan and 2019 Stock Incentive Plan.</footnote>
        <footnote id="F3">Represents the approximate number of shares of common stock for which the Reporting Person has the right to direct the vote under the Apogee 401(k) Retirement Plan per the Trustee's 3/31/2021 statement.  Shares of common stock are not directly allocated to the Plan participants, but are instead held in a unitized fund consisting primarily of common stock and a small percentage of short-term investments.  Participants acquire units in this fund.</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/ Meghan M. Elliott, Attorney-in-Fact for Maureen Ann Hayes</signatureName>
        <signatureDate>2021-04-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.4_980420
<SEQUENCE>2
<FILENAME>poa.txt
<DESCRIPTION>POA DOCUMENT
<TEXT>
POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that I, Maureen A. Hayes, 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/ Maureen A. Hayes
	 Maureen A. Hayes


Date:  December 8, 2020


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
