Tutor Perini (TPC) 8-K Amendments to Articles of Incorporation or Bylaws

MA SOC Filing Number: 202474639470 Date: 5/22/2024 3:06:18 PM EXHIBIT 3.1

THE COMMONWEALTH OF MASSACHUSETTS I hereby certify that, upon examination of this document, duly submitted to me, it appears that the provisions of the General Laws relative to corporations have been complied with, and I hereby approve said articles; and the filing fee having been paid, said articles are deemed to have been filed with me on: WILLIAM FRANCIS GALVIN Secretary of the Commonwealth May 22, 2024 03:06 PM MA SOC Filing Number: 202474639470 Date: 5/22/2024 3:06:18 PM