Item 7.01 Regulation FD Disclosure. Sterling Infrastructure, Inc. (the “ Company”) is furnishing presentation materials regarding the Company’s business and financial performance that will be used, in whole or in part, at a presentation to investors. The presentation is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit Number Description 99.1 Presentation Slides (furnished hereto) 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: September 17, 2025 By: /s/ Nicholas Grindstaff Nicholas Grindstaff Chief Financial Officer