S&T BANCORP, INC. ANNOUNCES BOARD OF DIRECTORS LEADERSHIP TRANSITION

Core Points - Christine J. Toretti, chair of the board of S&T Bancorp, Inc. and S&T Bank since 2018, will resign effective September 28, 2025, due to her appointment as ambassador to Sweden [1] - Christopher J. McComish has been elected as the new chairman of the board, combining the roles of CEO and chair, while Jeffrey D. Grube has been appointed as the lead independent director [3][4] - The board believes McComish's experience as CEO positions him well to address critical business issues, while Grube's extensive knowledge will aid in his new role [4][5] Company Overview - S&T Bancorp, Inc. is a $9.8 billion bank holding company headquartered in Indiana, Pennsylvania, and trades on NASDAQ under the symbol STBA [7]