0001193125-09-006518 8-K 2 20090109 5.03 9.01 20090115 20090115 S&T BANCORP INC 0000719220 6022 251434426 PA 1231 8-K 34 000-12508 09527934 800 PHILADELPHIA STREET PO BOX 190 INDIANA PA 15701 7244651466 800 PHILADELPHIA STREET PO BOX 190 INDIANA PA 15701 8-K 1 d8k.htm FORM 8-K EX-3.1 2 dex31.htm CERTIFICATE OF DESIGNATIONS FOR THE SERIES A PREFERRED STOCK