R. Scott Greer has served as a director of the Company since July 2014. Mr. Greer founded Numenor Ventures, LLC, a venture capital firm focused on life sciences companies, and has served as its Managing Director since June 2002. Prior to that, in 1996, Mr. Greer co-founded Abgenix, Inc., a company that specialized in the discovery, development and manufacture of human therapeutic antibodies, and from June 1996 through May 2002, he served as its Chief Executive Officer. He also served as a director of Abgenix from 1996 and chairman of the board from 2000 until the acquisition of Abgenix by Amgen, Inc. in April 2006. Prior to Abgenix's formation, Mr. Greer held senior management positions at Cell Genesys, Inc., a biotechnology company, initially as Chief Financial Officer and Vice President of Corporate Development and later as Senior Vice President of Corporate Development. Mr. Greer currently serves as a director of Versartis, Inc., StemCells, Inc. and Nektar Therapeutics. He previously served as chairman of the board of Ablexis, LLS, Inogen, Inc., and Sirna Therapeutics and as a director of Illumina, Inc., CV Therapeutics, Inc. and Auspex, Inc. He has also previously served on the board of numerous private companies. Mr. Greer received his B.A. in economics from Whitman College, earned his M.B.A. in business administration from Harvard University and was a certified public accountant. We believe Mr. Greer's significant financial, business and management expertise, coupled with his extensive experience as a director of multiple life science companies, qualifies him to serve as one of our directors.