On December 16, 2021, James A. Frost, a member of the Board of Directors (the “Board”) of Tutor Perini Corporation (the “Company”), notified the Company that he was resigning from the Board effective immediately. Mr. Frost’s resignation is not the result of any disagreement with the Company relating to its operations, policies or practices or with its Board or management. Mr. Frost will continue to serve as the Company’s President and Chief Operating Officer. On December 16, 2021, at the recommendation of the Corporate Governance and Nominating Committee, the Board elected Jigisha Desai as an independent director of the Company, effective immediately, to fill the vacancy created by Mr. Frost’s resignation, with a term expiring at the 2022 Annual Meeting of Shareholders. The Board also appointed Ms. Desai to serve as a member of the Audit Committee.