S&T Bancorp, Inc.
May 11, 2009

S&T Bancorp Inc. Announces Appointment of New Senior Vice President, Chief Audit Executive

INDIANA, Pa., May 11 /PRNewswire-FirstCall/ -- S&T Bank (Nasdaq: STBA), a full-service financial institution with branch locations in 10 Pennsylvania counties, is pleased to announce the appointment of LaDawn Yesho as the bank's new senior vice president, chief audit executive. In her new role, Yesho will be responsible for developing and managing S&T Bank's risk-based internal audit program.

(Photo: http://www.newscom.com/cgi-bin/prnh/20090511/NE14864 )

(Logo: http://www.newscom.com/cgi-bin/prnh/20070920/NETH079LOGO )

"LaDawn has more than 10 years of experience as an auditing professional in the very competitive and highly regulated financial services industry," said Ernie Draganza, senior vice president, risk management. "We welcome LaDawn to the S&T Bank family, where she will uphold our high standards of financial prudence."

Yesho most recently served as vice president, financial manager with The PNC Financial Services Group of Pittsburgh, PA, where she was responsible for managing the overall performance of the Sarbanes-Oxley Act of 2002 (SOX) Section 404 financial control evaluation. Prior to that, Yesho was an audit senior manager for Ernst & Young LLP of Pittsburgh, where she managed overall activities for audit engagements in the financial services industry with a career-long focus on publicly-traded banks.

Yesho is a Certified Public Accountant. She earned a Bachelor of Arts in Accounting and finance from the University of Pittsburgh - Johnstown, graduating with honors.

About S&T Bank

Headquartered in Indiana, PA, S&T Bancorp, Inc. operates 55 offices within Allegheny, Armstrong, Blair, Butler, Cambria, Clarion, Clearfield, Indiana, Jefferson and Westmoreland counties. With assets of $4.3 billion, S&T Bancorp, Inc. stock trades on the NASDAQ Global Select Market under the symbol STBA. For more information, visit stbank.com.


Contact: Rob Jorgenson of S&T Bank, +1-724-465-5448