William D. Waddill, Senior Vice President, Chief Financial Officer

Will Waddill joined OncoMed Pharmaceuticals as Senior Vice President, Chief Financial Officer in October, 2007. Most recently, Mr. Waddill was Senior Vice President, Chief Financial Officer at Ilypsa, Inc., where he was responsible for all corporate financial matters, most notably the strategic financial evaluation and implementation of a plan that led to a $420 million acquisition by Amgen, Inc. in 2007. Prior to his work at Ilypsa, he served as the principal of Square One Finance, a financial consulting business, managing the finances of 33 biotechnology companies, including eight that are currently public and six that have been acquired. Prior, Mr. Waddill held positions at Exelixis, Inc., most recently as Senior Director, Finance, and served as Chief Financial Officer of Medical Science Partners, a venture capital firm in Boston. He received a BS in accounting from the University of Illinois, and certification as a public accountant after work at PricewaterhouseCoopers and Deloitte and Touche.