X0306 4 2019-03-20 0000719220 S&T BANCORP INC STBA 0001157921 KOCHVAR MARK 800 PHILADELPHIA STREET INDIANA PA 15701 1 SR EXEC VICE PRESIDENT & CFO Common Stock 2019-03-20 4 F 0 362 38.90 D 31893.902 D Common Stock 2019-03-20 4 D 0 838 0 D 31055.902 D Common Stock 2019-03-21 4 F 0 611 39.18 D 30444.902 D Common Stock 2019-03-21 4 F 0 489 39.18 D 29955.902 D Common Stock 26322.8464 I 401-k Shares withheld upon vesting of Restricted Stock for payment of tax liability. Forfeiture of performance shares from the 2016 Long-Term Incentive Plan. Performance shares vested at 62.50%, between Threshold and Target level. /s/ Timothy P. McKee P.O.A. for Mark Kochvar 2019-03-22