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Form 8-K

sec.gov

8-K — GIBRALTAR INDUSTRIES, INC.

Accession: 0000912562-26-000096

Filed: 2026-05-08

Period: 2026-05-08

CIK: 0000912562

SIC: 3310 (STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS)

Item: Submission of Matters to a Vote of Security Holders

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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) May 8, 2026 (May 7, 2026)

GIBRALTAR INDUSTRIES, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-22462 16-1445150

(State or other jurisdiction of

incorporation ) (Commission File Number) (IRS Employer Identification No.)

3556 Lake Shore Road

P.O. Box 2028

Buffalo, New York 14219-0228

(Address of principal executive offices) (Zip Code)

(716) 826-6500

(Registrant’s telephone number, including area code)

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 Name of each exchange on which registered

Common Stock, $0.01 par value per share ROCK 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 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 5.07 Submission of Matters to a Vote of Security Holders

Gibraltar Industries, Inc. (the "Company") held its 2026 Annual Meeting of Stockholders ("2026 Annual Meeting") on May 7, 2026 in a virtual meeting format. Stockholders representing 28,786,103 shares, or 97.05%, of the common stock outstanding as of the March 16, 2026 record date were present or represented by proxy at the 2026 Annual Meeting. The items listed below were submitted to a vote of the stockholders at the 2026 Annual Meeting. The proposals are described in the Company's Definitive Proxy Statement for the 2026 Annual Meeting filed April 6, 2026. Final voting results are shown below.

Proposal 1 - Election of Directors

In order to be elected, each nominee for election as a director required the affirmative vote of a majority of the votes cast with respect to the director at the 2026 Annual Meeting. Eight directors were elected to hold office for a one-year term expiring in 2027 or until a successor has been duly elected and qualified, or until such director's earlier resignation, retirement or other termination of service. The following summarizes the votes received for each nominee for director.

Director Votes Cast For Votes Cast Against Abstain

Mark G. Barberio 27,375,890 744,765 11,026

William T. Bosway 27,264,368 850,411 16,902

James S. Metcalf 27,301,493 819,161 11,027

Gwendolyn G. Mizell 27,206,417 728,714 196,550

Linda K. Myers 26,048,891 2,071,616 11,174

James B. Nish 27,428,368 692,139 11,174

Atlee Valentine Pope 27,251,894 683,957 195,830

Manish H. Shah 27,255,461 679,824 196,396

Proposal 2 - Advisory Vote on Executive Compensation ("Say-on-Pay")

The stockholders approved the compensation of the Company's named executive officers in the advisory Say-on-Pay vote. The following summarizes the voting results for the advisory "Say-on-Pay" vote:

Votes Cast For Votes Cast Against Abstain Broker Non-Votes

27,265,479 853,892 12,310 654,422

Proposal 3 - Ratification of Selection of Independent Registered Public Accounting Firm

The selection of Ernst & Young LLP as the Company's Independent Registered Public Accounting Firm for the year ending December 31, 2026 was ratified, based upon the following votes:

Votes Cast For Votes Cast Against Abstain

28,156,147 611,037 18,919

2

SIGNATURE

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 hereunto duly authorized.

GIBRALTAR INDUSTRIES, INC.

Date: May 8, 2026

By: /s/ Joseph A. Lovechio

Joseph A. Lovechio

Vice President and Chief Financial Officer

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