Biography

Jeffry D. Frisby was the Executive Chairman of PCX Aerostructures, LLC doing business as PCX Aerostructures, a leading provider of flight critical mechanical systems and components for rotorcraft and fixed wing aerospace platforms, from September 2021 until his retirement in December 2025, having served as President and Chief Executive Officer from April 2017 until September 2021. Prior to joining PCX, Mr. Frisby spent 17 years with Triumph Group, Inc., a public company that manufactures aerospace structures, systems and components. He served as President and CEO and previously held a variety of positions within the Triumph Group and a predecessor group company, Frisby Aerospace, Inc. Mr. Frisby has served on Quaker Houghton’s Board since 2006, is Chair of the Sustainability Committee and also serves as a member of the Compensation and Human Resources Committee. Mr. Frisby has also been the Company’s Lead Director since 2023. He currently serves as a member of the board of directors of Astronics Corporation.