GIBRALTAR INDUSTRIES, INC. 10-Q

Item 5. Other Information During the quarter ended June 30, 2026, none of the Company's directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted, modified, or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement” as each term is defined in Item 408(a) of Regulation S-K. Item 6. Exhibits 2.1 Securities Purchase Agreement, by and among Gibraltar Industries, Inc., Arundel Square Garden LLC and Barnsbury Estate LLC, dated as of November 16, 2025 (incorporated by reference to Exhibit 2.1 to the Company's Current Report on Form 8-K filed November 17, 2025) (1) 3.1 Certificate of Incorporation of Gibraltar Industries, Inc., as amended by: (i) Certificate of Amendment of Certificate of Incorporation of Gibraltar Industries, Inc. filed on October 27, 2004, (ii) Certificate of Change of Registered Agent and Registered Office of Gibraltar Industries, Inc. filed on May 11, 2005, (iii) Certificate of Amendment of Certificate of Incorporation of Gibraltar Industries, Inc. filed on May 22, 2012, (iv) Certificate of Amendment of Certificate of Incorporation of Gibraltar Industries, Inc. filed on May 11, 2015, (v) Certificate of Change of Registered Agent and/or Registered Office filed on January 10, 2019, (vi) Certificate of Amendment of Certificate of Incorporation of Gibraltar Industries, Inc. filed on May 6, 2021 (incorporated by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q filed August 3, 2021), (vii) Certificate of Amendment to the Certificate of Incorporation of Gibraltar Industries, Inc. filed on May 3, 2023 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed May 8, 2023), and (viii) Certificate of Amendment of the Certificate of Incorporation of Gibraltar Industries, Inc. filed on May 1, 2025 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed May 1, 2025) 3.2 Second Amended and Restated By-Laws of Gibraltar Industries, Inc., effective as of December 7, 2022 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K/A filed December 9, 2022) 31.1 * Certification of Chairman of the Board, President and Chief Executive Officer pursuant to Section 302 of the Sarbanes–Oxley Act of 2002. 31.2 * Certification of Vice President and Chief Financial Officer pursuant to Section 302 of the Sarbanes–Oxley Act of 2002. 36 Table of Contents 32.1 *^ Certification of the Chairman of the Board, President and Chief Executive Officer pursuant to Title 18, United States Code, Section 1350, as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002. 32.2 *^ Certification of the Vice President and Chief Financial Officer pursuant to Title 18, United States Code, Section 1350, as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002. 101.INS* Inline XBRL Instance Document 101.SCH* Inline XBRL Taxonomy Extension Schema Document 101.CAL* Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.LAB* Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE* Inline XBRL Taxonomy Extension Presentation Linkbase Document 101.DEF* Inline XBRL Taxonomy Extension Definition Linkbase Document 104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) (1) Schedules (or similar attachments) have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company hereby undertakes to furnish supplemental copies of any of the omitted schedules upon request by the U.S. Securities and Exchange Commission; provided, that the Company may request confidential treatment pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended, for any schedules so furnished. * Submitted electronically with this Quarterly Report on Form 10-Q. ^ Documents are furnished not filed herewith. 37 Table of Contents 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. GIBRALTAR INDUSTRIES, INC. (Registrant) /s/ William T. Bosway William T. Bosway Chairman of the Board, President and Chief Executive Officer /s/ Joseph A. Lovechio Joseph A. Lovechio Vice President and Chief Financial Officer Date: August 5, 2026 38