Official announcements (8-K)

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's words(e) On October 29, 2026, the Compensation Committee (the “Compensation Committee”) of the Board of Directors (the “Board”) of Apogee Enterprises, Inc. (the “Company”) approved the compensation terms described below and recommended that the Board approve an extension of the employment term of Donald A. Nolan, the Company’s Chief Executive Officer and Executive Chair. The Board subsequently approved an extension of Mr. Nolan’s employment from November 1, 2026 through April 30, 2027 (the “Extended Term”), pursuant to an extension letter between the Company and Mr. Nolan (the “Extension Letter”). Mr. Nolan’s existing employment term was scheduled to expire on October 31, …

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

In the company's wordsOn October 6, 2026, Apogee Enterprises, Inc. issued a press release announcing its financial results for the second quarter of fiscal 2027. 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 99.1 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 …

Completed buying or selling a business or major assets (Item 2.01)

Buying or selling a business changes what the company owns and how it earns money.

In the company's wordsOn September 18, 2026, Apogee Enterprises, Inc. (the “Company”) completed the transaction contemplated by the Share Purchase Agreement, dated September 2, 2026 (the “Purchase Agreement”), pursuant to which Tiger MergeCo SIA, a wholly owned subsidiary of the Company, acquired all of the outstanding equity interests of SIA “Alzette” a Latvian limited liability company, and its subsidiaries, including GroGlass. Pursuant to the terms and conditions of the Purchase Agreement, the Transaction values GroGlass at approximately €62.5 million on a cash-free, debt-free basis; the final purchase price remains subject to the adjustments set forth in the Purchase Agreement and includes …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsOn September 18, 2026, the Company issued a press release announcing the completion of the acquisition described in Item 2.01, a copy of which is filed as Exhibit 99.1 and incorporated into this Item 7.01 by reference. The information furnished pursuant to this Item 7.01, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities under that section, and shall not be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, unless specifically identified …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's words(b) On September 10, 2026, Patricia K. Wagner informed the Board of Directors (the “Board”) of Apogee Enterprises, Inc. (the “Company”) that she intends to retire from the Board effective October 2, 2026. Ms. Wagner’s retirement is not as a result of a disagreement with the Company relating to the Company’s current or past operations, policies or practices. (d) On August 5, 2026, the Board elected Messrs. Joseph B. Hayek and Suresh Krishna as directors of the Company. Effective September 11, 2026, Mr. Hayek was appointed to the Nominating and Corporate Governance Committee and Mr. Krishna was appointed to the Compensation Committee. On September 11, 2026, the Board …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsA copy of the press release announcing the election of Ms. Streich to the Board is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Signed a major agreement (Item 1.01)

A major new contract can change what the company sells, spends or owes.

In the company's wordsShare Purchase Agreement On September 2, 2026, Apogee Enterprises, Inc. (the “Company”) entered into a Share Purchase Agreement (the “Purchase Agreement”) with the sellers party thereto (collectively, the “Sellers”), pursuant to which the Company, through a newly formed, wholly owned subsidiary, agreed to acquire 100% of the issued and outstanding equity interests of SIA “Alzette”, a Latvian limited liability company (“Alzette”) (the “Transaction”). Alzette owns 100% of the equity interests of SIA “GroGlass” (“Groglass”), a Latvia-based provider of high-performance glass surface solutions specializing in anti-reflective and other advanced coating technologies. Under the …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsOn September 2, 2026, the Company issued a press release (the “Press Release”) regarding the matters described in Item 1.01 of the Current Report on Form 8-K, a copy of which is filed as Exhibit 99.1 and incorporated into this Item 7.01. The information furnished pursuant to this Item 7.01, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities under that section, and shall not be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, unless …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's words(d) On August 5, 2026, the Board of Directors (the “Board”) of Apogee Enterprises, Inc. (the “Company”) elected Joseph B. Hayek, age 54, to serve as a Class II director, with a term expiring at the Company’s 2027 Annual Meeting of Shareholders and until his successor is duly elected and qualified. The Board also elected Suresh Krishna, age 57, to serve as a Class III director, with a term expiring at the Company’s 2028 Annual Meeting of Shareholders and until his successor is duly elected and qualified. The Board determined that each of Mr. Hayek and Mr. Krishna is independent under the applicable listing standards of The Nasdaq Stock Market LLC and the Company’s director …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsA copy of the press release announcing Mr. Hayek’s election is attached hereto as Exhibit 99.1.

Completed buying or selling a business or major assets (Item 2.01)

Buying or selling a business changes what the company owns and how it earns money.

In the company's wordsOn July 1, 2026, Apogee Enterprises, Inc. (the “Company”) completed the transaction contemplated by the Merger Agreement, dated May 27, 2026 (the “Merger Agreement”), among the Company, Keller Companies, Inc. (“KCI”), certain equityholders party thereto and the other parties thereto. Pursuant to the terms and conditions of the Merger Agreement, the Company acquired all of the outstanding equity interests of KCI and its subsidiaries, including Kalwall Corporation and Structures Unlimited, Inc. (collectively, the “Acquired Companies”), in exchange for cash consideration consisting of $105 million paid at closing (the “Base Purchase Price”), subject to customary post-closing …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsOn July 1, 2026, the Company issued a press release announcing the completion of the acquisition described in Item 2.01, a copy of which is filed as Exhibit 99.1 and incorporated into this Item 7.01 by reference. The information furnished pursuant to this Item 7.01, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities under that section, and shall not be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, unless specifically identified therein as …

Shared shareholder vote results (Item 5.07)

How shareholders voted on board members and proposals.

In the company's wordsThe Company's Annual Meeting of Shareholders (the "Annual Meeting") was held on June 24, 2026. The three proposals voted upon at the Annual Meeting are described in detail in the Company’s Proxy Statement for the Annual Meeting filed with the Securities and Exchange Commission on May 12, 2026. The final results for the votes regarding each proposal are set forth below. 1.A proposal to re-elect two Class I directors for three-year terms expiring at the 2029 Annual Meeting of Shareholders. Each of the director nominees was re-elected and received the following votes: Class II Directors For Against Abstain Broker Non-Votes Donald A. Nolan 16,473,836 567,339 17,807 1,652,162 …

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

In the company's wordsOn June 26, 2026, Apogee Enterprises, Inc. issued a press release announcing its financial results for the first quarter of fiscal 2027. 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 99.1 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 …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's words(b) On May 26, 2026, Brent C. Jewell tendered his resignation as President of the Architectural Glass Segment of Apogee Enterprises, Inc. (the “Company”). His last day with the Company will be June 10, 2026. Mr. Jewell’s resignation is unrelated to the transaction announced by the Company on May 28, 2026 and was not the result of any disagreement with the Company on any matter relating to its operations, policies or practices. The timing of this disclosure reflects the Company’s reporting obligations only and should not be interpreted as indicating any relationship between the leadership transition and the transaction. Mr. Jewell is expected to continue to support the …

Signed a major agreement (Item 1.01)

A major new contract can change what the company sells, spends or owes.

In the company's wordsMerger Agreement On May 27, 2026, Apogee Enterprises, Inc. (the “Company”) entered into a Merger Agreement (the “Merger Agreement”) with Keller Companies, Inc. (“KCI”) and KCI’s shareholders (the “Sellers”). KCI is the controlling shareholder of Kalwall Corporation (“Kalwall”) and Structures Unlimited Inc. (“SUI”). Subject to the terms and conditions of the Merger Agreement, the Company has agreed to acquire all of the outstanding equity interests of KCI from the Sellers pursuant to a merger in which KCI will survive as a wholly owned subsidiary of the Company (the “Merger”). In addition, a wholly owned subsidiary of the Company will purchase certain real property parcels …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsOn May 28, 2026, the Company issued a press release (the “Press Release”) regarding the matters described in Item 1.01 of the Current Report on Form 8-K a copy of which is filed as Exhibit 99.1 and incorporated into this Item 7.01. The information furnished pursuant to this Item 7.01, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities under that section, and shall not be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, unless specifically …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's words(e) Time-Based Restricted Stock Awards At meetings of the Compensation Committee (the “Committee”) and Board held on April 22, 2026, the executive officers listed below (“Executive Officers”) were awarded shares of time-based restricted stock (“Restricted Stock Awards”) in the amounts indicated: Name Position Number of Shares of Restricted Stock Awarded Fully Vested Date Mark R. Augdahl Executive Vice President and Chief Financial Officer 11,630 April 30, 2029 Brent C. Jewell President, Architectural Glass Segment 8,067 April 30, 2029 Matthew S. Christian President, Architectural Services Segment 6,628 April 30, 2029 Troy R. Johnson President, Architectural Metals Segment …

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Shared shareholder vote results (Item 5.07)

How shareholders voted on board members and proposals.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.