Joseph C. Cook, Jr.

Joe Cook has served as a director for Castle Biosciences since 2012, and was an advisor to the company from 2008 until becoming a director. He is a principal and co-founder of Mountain Group Capital. He is a founder and former Chairman of the Board of Ironwood Pharmaceuticals, Inc., where he continues to serve as a Director. He also serves as a director of Corcept Therapeutics, Inc. Joseph Cook served as Chairman of Amylin Pharmaceuticals, Inc. from 1998 to 2009 and was Chief Executive Officer from 1998 to 2003. In 2009, Joseph Cook received the Pinnacle Award for Life Science Leadership from the Rady School of Management at the University of California at San Diego. Joseph Cook retired as a Group Vice President, Global Operations, of Eli Lilly and Company in 1993 after more than 28 years of service. During his career at Lilly he served in various senior executive positions, including manufacturing, engineering, finance, sales and marketing and general management. Joseph Cook took a leave of absence from Eli Lilly and Co. in 1976 to serve on the U.S. International Trade Commission in Washington, D.C. as a part of the President’s Executive Exchange Program. Joseph Cook serves as Chairman of the Board of Mercy Ministries International, Inc. He is also a former Chair and current member of the University of Tennessee College of Engineering Advisory Board. In 1999, Joseph Cook received the Nathan W. Dougherty Award from the University of Tennessee for distinguished service in the engineering profession. Joseph Cook also serves on the national board of the American Diabetes Association and is Chairman of the Board of Life Science Tennessee. He also serves as Chairman of Diabetes Care Group and on the Board of Clinical Products. He was a co-founder and serves on the boards of Device Innovation Group and Diagnovus. Joseph Cook graduated from the University of Tennessee in 1965 where he received a BS in Engineering with High Honors and was a U.T. Torchbearer.