STRL: Leadership change

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On July 6, 2026 , Mark D. Wolf, General Counsel, Chief Compliance Officer and Corporate Secretary of Sterling Infrastructure, Inc. (the “Company”), notified the Company of his intention to retire later this year. Mr. Wolf is expected to continue in his current role and assist in the transition. 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: July 10, 2026 By: /s/ Nicholas Grindstaff Nicholas Grindstaff Chief Financial Officer