Sidney Feltenstein resigned from the Board of Directors effective October 30, 2026. His departure follows a decline in beneficial ownership by Ronald N. Tutor’s affiliated trusts below the 11.25% threshold required under a 2008 Shareholders Agreement to designate a board member. The company expects to reduce the size of its Board following this resignation. Tutor Perini Corporation is an engineering and construction firm specializing in large-scale infrastructure projects.