Management Team | Corporate | STERIS Corporation

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	Walter M. Rosebrough President and Chief Executive Officer Walter M. Rosebrough is President and Chief Executive Officer of STERIS Corporation and is a member of its Board of Directors. He joined the Company in October 2007. Before joining STERIS, Mr. Rosebrough spent more than 20 years in the healthcare industry in various roles. He was a senior executive with Hillenbrand Industries, Inc., a worldwide leading provider of medical technologies and related services. In 1995, after the merger of SSI and Hill-Rom, Mr. Rosebrough was named President and Chief executive officer of Hill-Rom, the health care subsidiary of Hillenbrand that develops, sells and rents patient support systems, non-invasive therapeutic products for a variety of acute and chronic medical conditions, medical equipment, and workflow information technology solutions. In 1999 and 2000, Mr. Rosebrough served as Executive Vice President and Special Advisor to the chief executive officer of Hillenbrand. Mr. Rosebrough left Hillenbrand in 2000 to lead Vasocor, Inc., a Credit Suisse First Boston-funded start-up private company, as President and Chief Executive Officer. Vasocor was a healthcare company focused on the development of a non-invasive medical device to enable early detection of atherosclerosis. In 2004, Mr. Rosebrough purchased Coastal Hydraulics, Inc., a private company that provides hydraulic and pneumatic systems, equipment and services used in industrial, marine and mobile equipment applications. Mr. Rosebrough served as Coastal Hydraulics President and Chief Executive Officer until joining STERIS in 2007.

	William L. Aamoth Vice President and Corporate Treasurer William L. Aamoth serves as Vice President and Corporate Treasurer. He joined the Company in March 2001. Prior to joining the Company, Mr. Aamoth was employed by Hayes Lemmerz International, a manufacturer of automotive wheels, brakes, and related systems, from January 2000 through January 2001, serving as Treasurer. From May 1992 to December 1999, Mr. Aamoth was employed by TRW, Inc., a manufacturer and service provider of automotive, aerospace, and information technology products, serving most recently as Assistant Treasurer, International.

	Peter A. Burke Senior Vice President and Chief Technology Officer Peter A. Burke serves as Senior Vice President and Chief Technology Officer. He became Senior Vice President in March 2002. Dr. Burke joined the Company in March 2001 as Vice President and Chief Technology Officer. Prior to joining STERIS, Dr. Burke was employed by Carter-Wallace, Inc., a manufacturer and distributor of consumer and pharmaceutical products, from January 1996 to March 2001, serving most recently as Vice President, Research and Development.

	Timothy L. Chapman Senior Vice President and Group President, Healthcare Timothy L. Chapman was named senior vice president and group president, Healthcare on February 5, 2008. Mr. Chapman is responsible for STERIS’s Healthcare segment, a leading provider of infection prevention and surgical equipment, consumables and services to customers such as acute care hospitals and outpatient surgical centers. Mr. Chapman also has responsibility for the Company's business strategy functions including information technology, global supply chain, business development and strategic planning. Before joining STERIS, Mr. Chapman was employed by McKinsey & Company in the firm’s Cleveland, Ohio office. During more than 20 years with McKinsey, he led the Purchasing and Supply Management Practice, Operations Practice, and for 15 years, the Healthcare Practice. Before his career at McKinsey & Company, Mr. Chapman worked for General Electric Credit Corporation and Continental Illinois Bank and Trust Company.

	Mark D. McGinley Senior Vice President, General Counsel, and Secretary Mark D. McGinley serves as Senior Vice President, General Counsel and Secretary. He joined the Company in March 2002. Prior to joining STERIS, Mr. McGinley was employed by Noveon, Inc., an international specialty chemicals manufacturer. Mr. McGinley also served as Associate General Counsel of The Glidden Company and was employed by the BF Goodrich Company from 1990 to 2000 in various legal capacities, including General Counsel of BF Goodrich Sealants, Coatings and Adhesives Group.

	Robert E. Moss Senior Vice President and Group President, Isomedix Services and Life Sciences Robert E. Moss was named Senior Vice President and Group President of Isomedix Services and Life Sciences on October 5, 2009. Before assuming this role, he served as Senior Vice President of STERIS Corporation and Group President, STERIS Isomedix Services. He also served as Vice President and General Manager of Isomedix Services from 1999 until April 2003. Mr. Moss joined the Company with Amsco in 1990 and served as Vice President of Operations until 1999. Before joining the Company, Mr. Moss held senior leadership positions with Cardinal Health Corporation and divisions of the American Hospital Supply Corporation.

	Gerard J. Reis Senior Vice President, Government Affairs Gerard J. Reis serves as Senior Vice President, Government Affairs. He assumed this role in March 2008, He served as Senior Vice President and Group President, Life Sciences, from February 2005 until March 2008 and Senior Vice President and Group President, Defense and Industrial, from April 2003 until February 2005.

	Michael J. Tokich Senior Vice President and Chief Financial Officer Michael J. Tokich was named Senior Vice President and Chief Financial Officer of STERIS Corporation on March 14, 2008. As chief financial officer, Mr. Tokich has primary responsibility for financial reporting and planning, investor relations, tax and treasury and continues to serve as the Company’s principal accounting officer. He joined the Company in May 2000 as Assistant Corporate Controller and became Corporate Controller in December 2000. Prior to joining the Company, Mr. Tokich was employed by OfficeMax, Inc., a retailer of goods and services to business customers and consumers, from July 1994 to May 2000, serving most recently as Divisional Vice President, Assistant Controller.