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UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 ANNUAL REPORT PURSUANT TO SECTION 13 or 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended February 27 , 2021 TRANSITION REPORT PURSUANT TO SECTION 13 or 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 FORM 10 - K Minnesota ( State or other jurisdiction of incorporation or organization ) For the transition period from 4400 West 78th Street ( Address of principal executive offices ) APOGEE ENTERPRISES , INC . ( Exact name of registrant as specified in its charter ) to Commission File Number : 0-6365 Title of each class Common Stock , $ 0.33 1/3 Par Value Suite 520 Minneapolis Minnesota Registrant's telephone number , including area code : ( 952 ) 835-1874 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) APOG Securities registered pursuant to Section 12 ( g ) of the Act : None 41-0919654 ( I.R.S. Employer Identification No. ) 55435 ( Zip Code ) Name of each exchange on which registered The NASDAQ Stock Market LLC Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes □ No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . □ Yes > No Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes - No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes No