Martin A. Simonetti has served as President and Chief Executive Officer of VLST since November 2005. From 1999 to 2005, Mr. Simonetti was employed at Dendreon Corporation, most recently serving as Chief Financial Officer, Senior Vice President Finance and Treasurer. From 1991 to 1998, he was employed at Amgen Inc., serving as Vice President Operations and Finance of Amgen BioPharma and its Director of Colorado Operations. From 1984 to 1991, he worked at Genentech, Inc., first as a scientist in its Medicinal and Analytical Chemistry Department and later as a financial analyst and group controller. Mr. Simonetti serves on the board of directors of Alexandria Real Estate Equities (NYSE: ARE), based in Pasadena, California and Icagen, Inc. (Nasdaq: ICGN), based in Durham, North Carolina. He is also a member of the Dean's executive advisory board for the Albers School of Business and Economics at Seattle University. Mr. Simonetti received an M.S. from the University of California, Davis and an M.B.A. from the University of Santa Clara.