X0306 5 2014-12-31 0 0 0000719220 S&T BANCORP INC STBA 0001611583 Kametz William 800 PHILADELPHIA STREET INDIANA PA 15701 1 Executive Vice President Common Stock 2014-12-31 5 J 0 14.756 30.1575 D 0.102 I 401-K Common Stock 2014-12-31 5 J 0 20.366 30.1575 A 2767.703 D This is a reduction in the 401(k) shares due to automatic annual rebalancing. Inadvertantly not included shares due to a grant on 05/19/14 that was not included in the balance on 06/16/14. Increase due to reinvested dividends in a dividend reinvestment plan. /s/ Timothy P. McKee POA for William Kametz 2015-02-10