Diane Wilfong has served as a member of our board of directors since September 2019. Since February 2016, Ms. Wilfong has served as Senior Vice President, Controller and Chief Accounting Officer at Gilead Sciences, Inc., a biotechnology company. From November 2014 to February 2016, Ms. Wilfong served as Vice President, Controller and Principal Accounting Officer at Computer Sciences Corporation, a technology company. Prior to that, Ms. Wilfong held various finance roles at other companies since 1983. Ms. Wilfong holds a B.S.B.A. in Accounting from the Kenan-Flagler Business School, University of North Carolina. We believe Ms. Wilfong is qualified to serve on our board of directors because of her vast experience as a finance professional in the technology and biotechnology industries.