901109AD0

The following information hereby is added to the existing disclosure: Since the last Amendment filed on August 27, 2025, the SPT and TMPT disposed of 392,972 net shares of Common Stock beneficially owned by Mr. Tutor. On March 2, 2026, Ronald N. Tutor, the Company's Executive Chairman, informed the Company that he intends to make sales of some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. The timing, manner and amount of such sales have not been determined at this time. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in the business and future of the Company based on its leadership, backlog, bidding opportunities, cash position, as well as its outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.

The following information hereby is added to the existing disclosure: Since the last Amendment filed on August 27, 2025, the SPT and TMPT disposed of 392,972 net shares of Common Stock beneficially owned by Mr. Tutor. On March 2, 2026, Ronald N. Tutor, the Company's Executive Chairman, informed the Company that he intends to make sales of some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. The timing, manner and amount of such sales have not been determined at this time. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in the business and future of the Company based on its leadership, backlog, bidding opportunities, cash position, as well as its outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.

The following information hereby is added to the existing disclosure: Since the last Amendment filed on August 27, 2025, the SPT and TMPT disposed of 392,972 net shares of Common Stock beneficially owned by Mr. Tutor. On March 2, 2026, Ronald N. Tutor, the Company's Executive Chairman, informed the Company that he intends to make sales of some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. The timing, manner and amount of such sales have not been determined at this time. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in the business and future of the Company based on its leadership, backlog, bidding opportunities, cash position, as well as its outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.

The following information hereby is added to the existing disclosure: Since the last Amendment filed on August 27, 2025, the SPT and TMPT disposed of 392,972 net shares of Common Stock beneficially owned by Mr. Tutor. On March 2, 2026, Ronald N. Tutor, the Company's Executive Chairman, informed the Company that he intends to make sales of some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. The timing, manner and amount of such sales have not been determined at this time. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in the business and future of the Company based on its leadership, backlog, bidding opportunities, cash position, as well as its outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.