8-K – 2026-06-09 – strl-20260609.htm

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strl-20260609 FALSE 0000874238 0000874238 2026-06-09 2026-06-09

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): June 9, 2026

STERLING INFRASTRUCTURE, INC.
(Exact name of registrant as specified in its charter)

Delaware 001-31993 25-1655321
(State or other jurisdiction of incorporation
or organization) (Commission File Number) (I.R.S. Employer
Identification No.)

1800 Hughes Landing Blvd.
The Woodlands , Texas
 
77380

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code:   ( 281 ) 214-0777

Securities registered pursuant to Section 12(b) of the Act:
Common Stock, $0.01 par value per share STRL The NASDAQ Stock Market LLC
(Title of Class) (Trading Symbol) (Name of each exchange on which registered)

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))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 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 7.01 Regulation FD Disclosure.

On June 9, 2026, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing that it has closed on the acquisition of Stone Ridge Contracting, LLC., a Pocatello, Idaho-based site development contractor. A copy of the press release is furnished herewith as Exhibit 99.1 and incorporated herein by reference.
The information set forth in Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. The information in this Item 7.01, including Exhibit 99.1, shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01      Financial Statements and Exhibits.
(d)      Exhibits

Exhibit Number Description

99.1 Press release, dated June 9, 2026

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 hereunto duly authorized.

  STERLING INFRASTRUCTURE, INC.
     
Date: June 9, 2026 By: /s/ Mark D. Wolf
    Mark D. Wolf
    General Counsel and Corporate Secretary