STRL: Company disclosure

Item 7.01 Regulation FD Disclosure. On October 5, 2026, the Company issued a press release announcing the appointment of Katherine Hargis as Senior Vice President, General Counsel, Chief Compliance Officer, and Corporate Secretary, a copy of which is furnished as Exhibit 99.1 hereto and incorporated into this Item 7.01 by reference. The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto. Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit Number Description 99.1 Press release, dated October 5, 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: October 5, 2026 By: /s/ Nicholas Grindstaff Nicholas Grindstaff Chief Financial Officer