Donald Williams has served as a member of our board of directors since June 2016. Mr. Williams is currently a member of our board of directors a 35-year veteran of the public accounting industry who retired in 2014. Mr. Williams spent 18 years as a partner at Ernst & Young and the last seven years as a partner at Grant Thornton. Mr. Williams’ career focused on private and public companies in the technology and life sciences sectors. During the last seven years at Grant Thornton, he served as the National Leader of Grant Thornton’s Life Sciences Practice and the Managing Partner of the San Diego Office. He was the lead partner for both Ernst & Young and Grant Thornton on multiple initial public offerings; secondary offerings; private and public debt financings; as well as numerous mergers and acquisitions. Mr. Williams serves as a director of Alphatec Holdings, Inc., Impedimed Limited, Marina Biotech, Inc. and Proove Biosciences, Inc. Mr. Williams served on the board of directors and is past President and Chairman of the San Diego Venture Group and has served on the board of directors of various charitable organizations in the communities in which he has lived. Mr. Williams is a graduate of Southern Illinois University with a B.S. degree.