John Roush has served as a member of the Board of Directors since April 2017. Mr. Roush also serves as a board director and member of the Compensation Committee and Nominating & Corporate Governance Committee for Advanced Energy Industries, Inc. (NASDAQ: AEIS) and as a board of director member at LeMaitre Vascular, Inc. (NASDAQ: LMAT). Mr. Roush served as Chief Executive Officer and a member of the Board of Directors of Novanta Inc., a global supplier of precision photonic components and subsystems to original equipment manufacturers (OEMs) in the medical, industrial, scientific and microelectronics markets, from 2010 to 2016. Prior to joining Novanta Inc., he was a corporate officer and served in several senior leadership positions for twelve years with PerkinElmer, Inc., a provider of technology and services to the diagnostics, research, environmental, safety and security, industrial and laboratory services markets. Since 2009, Mr. Roush had been serving as president of PerkinElmer’s Environmental Health business. From 2004 to 2009, Mr. Roush led PerkinElmer’s Optoelectronics business unit, which supplies specialty photonics products to biomedical and industrial OEMs. From 1999 to 2004, Mr. Roush served in various general management roles within the Optoelectronics business unit. Prior to joining PerkinElmer, Mr. Roush held management positions with Outboard Marine Corporation, AlliedSignal, Inc., now Honeywell International, McKinsey & Company Inc. and General Electric. Mr. Roush received a B.S. in Electrical Engineering from Tufts University and an M.B.A. from the Harvard Business School. The Board has concluded that Mr. Roush should serve on the Board due to his experience at an executive level and his more than 15 years of experience supplying products into the medical device and life sciences industries.