Mr. Dewey is an active investor with over thirty years of experience in finance. From January 2007 to April 2011, he served as Vice Chairman of the board of directors of National Holdings Corporation, a financial services organization operating through its subsidiary, National Securities. From December 2006 to December 2008, Mr. Dewey served as acting Chief Executive Officer and director of Z-KAT, Inc., a surgical navigation medical device company. He previously served as Executive Vice President of Jefferies & Company, Inc., the principal operating subsidiary of Jeffries Group, Inc., a securities and investment banking firm, from 1994 to December 2006. Mr. Dewey co-founded several companies, including Robotic Ventures LLC, Bonds Direct Securities LLC and Cannon Group Inc., a motion picture company that went public in 1972. Mr. Dewey has also served on the board of directors of various companies including Orthosensor, Inc., a medical device company, Mako Surgical Corp., a medical device company, and Auris Surgical Robotics, Inc., an ophthalmic robotics company. Mr. Dewey holds an M.B.A. from The Wharton School of the University of Pennsylvania.