<SEC-DOCUMENT>0001209191-21-043226.txt : 20210625
<SEC-HEADER>0001209191-21-043226.hdr.sgml : 20210625
<ACCEPTANCE-DATETIME>20210625113431
ACCESSION NUMBER:		0001209191-21-043226
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210624
FILED AS OF DATE:		20210625
DATE AS OF CHANGE:		20210625

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lilly Elizabeth Murphy
		CENTRAL INDEX KEY:			0001799209

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06365
		FILM NUMBER:		211045963

	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>2021-06-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001799209</rptOwnerCik>
            <rptOwnerName>Lilly Elizabeth Murphy</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O 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>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-06-24</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2721</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9113</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares vest over a three year vesting period with one-third of the shares vesting on each anniversary of the award.</footnote>
        <footnote id="F2">Includes restricted stock awards under the 2019 Non-Employee Director Stock Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Meghan M. Elliott, Attorney-in-Fact for Elizabeth Murphy Lilly</signatureName>
        <signatureDate>2021-06-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.4_995578
<SEQUENCE>2
<FILENAME>poa.txt
<DESCRIPTION>POA DOCUMENT
<TEXT>
POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that I, Elizabeth Murphy
Lilly, 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/ Elizabeth Murphy Lilly
        Elizabeth Murphy Lilly

Date:  September 7, 2020










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