Todd Simpson — Chief Financial Officer at Seattle Genetics

Mr. Todd E. Simpson has been the Chief Financial Officer of Seattle Genetics, Inc. since October 4, 2005 and serves as its Principal Accounting Officer. Mr. Simpson served as a Vice President of Finance and Administration, Chief Financial Officer, Treasurer and Secretary of Targeted Genetics Corp. since October 2001 until October 3, 2005. He served as the Principal Accounting Officer of Targeted Genetics Corporation until October 3, 2005. He joined Targeted Genetics in October 2001. From January 1996 to October 2001, Mr. Simpson served as a Vice President of Finance & Administration and Chief Financial Officer of Aastrom Biosciences, Inc. From August 1995 to December 1995, Mr. Simpson served as Treasurer of Integra LifeSciences Corporation, a Public Biotechnology Company, which acquired Telios Pharmaceuticals, Inc. in August 1995. From 1992 until its acquisition by Integra, he served as Vice President of finance and Chief Financial Officer of Telios and in various other finance-related positions. He has been an Independent Director of Aquinox Pharmaceuticals Inc. since January 27, 2014. From 1983 to 1992, he practiced public accounting with Ernst & Young LLP. He is a Certified Public Accountant. Mr. Simpson received his B.S. in Accounting and Computer Science from Oregon State University.