Donald A. Williams
Donald A. Williams has served as a Director of Alphatec Holdings and Alphatec Spine, since April 2015. Mr. Williams is a 35-year veteran of the public accounting industry, retiring in 2014. Mr. Williams spent 18 years as an Ernst & Young partner and the last seven years as a Partner with 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. From 2001 to 2014, Mr. Williams served on the board of directors and is past president and chairman of the San Diego Venture Group. Mr. Williams also has serves as a director of Marina Biotech, Inc., Proove Biosciences, Inc. and is on the Board of Advisors of the Southern Illinois University School of Accountancy.