Item 2.02 Results of Operations and Financial Condition. On May 4, 2026, Sterling Infrastructure, Inc. (the “ Company”) issued a press release announcing financial results for the three months ended March 31, 2026 and providing updated full year 2026 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference. The information provided in this Item 2.02 shall not be deemed to be “filed” for the 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, 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 of 1933, as ame... ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

Item 7.01 Regulation FD Disclosure. On May 5, 2026, the Company will host a conference call to discuss the first quarter 2026 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein 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... ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit Number Description 99.1 Press release, dated May 4, 2026 99.2 Presentation slides, dated May 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: May 4, 2026 By: /s/ Nicholas Grindstaff Nicholas Grindstaff Chief Financial Officer