X0306 4/A 2021-08-05 2021-08-06 0000719220 S&T BANCORP INC STBA 0001157903 DONNELLY MICHAEL J 800 PHILADELPHIA STREET INDIANA PA 15701 1 Common Stock 2021-08-05 4 A 0 1465 29.34 A 16774 D Common Stock 17564 I Indiana Printing & Publishing Company The Registrant granted the annual Director Award effective on the date that the Form S-8 Registration Statement for the S&T Bancorp, Inc. 2021 Incentive Stock Plan was filed with the Securities Exchange Commission and under the terms of the Restricted Stock Award Agreement between the Company and the Director. The vesting date of the award is May 16, 2022. Price of $29.24 on original Form 4 dated August 6, 2021 was incorrect. Timothy P. McKee POA for Michael Donnelly 2021-08-06