Results of Operations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549   FORM 8-K   CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 22, 2022 APOGEE ENTERPRISES, INC. (Exact name of registrant as specified in its charter)   Minnesota   0-6365 41-0919654 (State or other jurisdiction of incorporation)   (Commission File Number) (I.R.S. Employer Identification No.) 4400 West 78th Street, Suite 520 Minneapolis Minnesota 55435 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code: ( 952 )  835-1874 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common stock, $0.33 1/3 Par Value APOG The Nasdaq Stock Market LLC Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION On December 22, 2022 , Apogee Enterprises, Inc. issued a press release announcing its financial results for the third quarter of fiscal 2023. A copy of this press release is furnished (not filed) as Exhibit 99.1 to this Current Report on Form 8-K, and is incorporated herein by reference.   ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS (d) Exhibits. Exhibit Number Description 99.1 Press Release issued by Apogee Enterprises, Inc. dated December 22, 2022 104 Cover page interactive data file (embedded within the Inline XBRL document) SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.   APOGEE ENTERPRISES, INC. By:   /s/ Mark Augdahl   Mark Augdahl Interim Chief Financial Officer Dated: December 22, 2022