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): September 19, 2023 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 September 19, 2023 , Apogee Enterprises, Inc. issued a press release announcing its financial results for the second quarter of fiscal 2024. A copy of this press release is attached hereto as Exhibit 99.1 and incorporated herein by reference. The information furnished in Item 2.02 of this Current Report on Form 8-K and Exhibit 99 attached hereto shall not be deemed to be filed for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, and shall not be deemed to be incorporated by reference into any registration statement or other document filed pursuant to the Securities Act of 1933, as amended.   ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS (d) Exhibits. Exhibit Number Description 99.1 Press Release issued by Apogee Enterprises, Inc. dated September 19, 2023 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/ Matthew J. Osberg   Matthew J. Osberg Executive Vice President and Chief Financial Officer Dated: September 19, 2023