X0306 4 2017-05-08 0 0000077543 TUTOR PERINI Corp TPC 0001186752 SNYDER DONALD D C/O TUTOR PERINI CORPORATION 15901 OLDEN STREET SYLMAR CA 91342 1 0 0 0 Common Stock 2017-05-08 4 S 0 5000 28.06 D 30842 D The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.00 to $28.15, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in the footnote to this Form 4. /s/ John D. Barrett, attorney in fact 2017-05-11