Seth H. Bagshaw

Seth H. Bagshaw has served as Vice President and Chief Financial Officer of MKS Instruments, Inc., since January 2010 and as Treasurer since March 2011. From March 2006 to January 2010, Mr. Bagshaw served as Vice President and Corporate Controller. Before joining MKS Instruments, he served as Vice President and CFO of Vette Corp., an integrated global supplier of thermal management systems from 2004 to 2006. From 1999 to 2004, Mr. Bagshaw served as Vice President and Corporate Controller of Varian Semiconductor Equipment Associates, Inc., a producer of ion implantation equipment used in the semiconductor manufacturing industry, and from 1998 to 1999, he served as Vice President and CFO of Palo Alto Products International, Inc., an industrial design, engineering and manufacturing company, until its acquisition by Flextronics International, Ltd. Before that, Mr. Bagshaw held several senior financial management positions at Waters Corporation, a developer of innovative analytical science solutions, most recently as Vice President and CFO of its Asia Pacific region, and was a Senior Manager at PricewaterhouseCoopers LLC. He is a Certified Public Accountant and has a B.S. in business administration from Boston University and an MBA from Cornell University.