Mark Hershey has served as president and chief executive officer of Armstrong World Industries since April 2026. He previously served as Chief Operating Officer and as senior vice president, Americas. In these roles, he was responsible for the strategy and operations of both company segments, Mineral Fiber and Architectural Specialties, as well as business development, innovation and enterprise-wide strategic planning.
He has played a key role in advancing the company’s growth strategy, including leading numerous commercial and strategic initiatives and contributing to the acquisitions that have transformed the Architectural Specialties segment. He also played a leadership role in the separation of the company’s flooring business in 2016 and the divestiture of its European and Pacific Rim businesses in 2019.
Mark joined Armstrong in 2011 as general counsel and secretary and later served as chief compliance officer and head of sustainability. He holds a bachelor’s degree in finance from Penn State University and a juris doctor from Villanova University School of Law.