Mark S. Wrighton

Dr. Wrighton became a director following the Company’s acquisition of Helix Technology Corporation in October 2005. He served as chancellor of Washington University in St. Louis from July 1995 through May 31, 2019 and is now Professor and Chancellor Emeritus. In September 2021, Dr. Wrighton was appointed interim President of George Washington University effective January 1, 2022. Dr. Wrighton also serves as a director of Corning Incorporated, a manufacturer of specialty glass and ceramics. He previously served as a director of: A.G. Edwards, Inc., a financial services company, until 2007; Akermin, Inc, a private company that ceased operations in 2017; and Cabot Corporation, a chemical manufacturer, until 2021. In June 2020, Dr. Wrighton was appointed to the MIT Corporation. Prior to joining Washington University in St. Louis in 1995, Dr. Wrighton enjoyed a 23-year tenure at MIT, first as a faculty member in chemistry and then as Provost for the final five years.