S&T BANCORP INC — Director's Dealing 2010

Mar 1, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: S&T BANCORP INC (STBA)
CIK: 0000719220
Period of Report: 2010-02-25

Reporting Person: KOCHVAR MARK (EXEC VICE PRESIDENT & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-25	Common Stock	A	2807	$17.81	Acquired	5731	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	13782	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Options (Right to Buy)	$19.8125	2010-12-18	Common Stock (10000)	10000	Direct
Stock Options (Right to Buy)	$24.40	2011-12-17	Common Stock (10000)	10000	Direct
Stock Options (Right to Buy)	$29.965	2013-12-15	Common Stock (6500)	6500	Direct
Stock Options (Right to Buy)	$37.08	2014-12-20	Common Stock (6500)	6500	Direct
Stock Options (Right to Buy)	$37.855	2015-12-19	Common Stock (6500)	6500	Direct

Footnotes

F1: Restricted stock granted February 25, 2010 vesting 50% on February 25, 2011 and 50% on February 25, 2012.