    <SEC-DOCUMENT>0001193125-21-173782-index.html : 20210527
    <SEC-HEADER>0001193125-21-173782.hdr.sgml : 20210527
    <ACCEPTANCE-DATETIME>20210526174600
    ACCESSION NUMBER:		0001193125-21-173782
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20210527
    DATE AS OF CHANGE:		20210526

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-06365
    		FILM NUMBER:		21967663

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>d169544ddefa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: d169544ddefa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g169544g01a10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g169544g01a10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g169544g03a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g169544g03a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g169544g04b02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g169544g04b02.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>