JC

John K. Castle

Director at Shelf Drilling

Mr. Castle joined the Company’s Board of Directors in November 2012. Since 1987, Mr. Castle has served as Chairman and Chief Executive Officer of Castle Harlan, Inc. Currently, he is a member of the CHAMP III Investment Committee. Mr. Castle has served as chairman of Castle Connolly Medical Ltd. since 1991 until its sale in December 2018, and has served as Chairman and Chief Executive Officer of Branford Castle, Inc., a holding company, since 1986. Prior to forming Castle Harlan, Inc., Mr. Castle was President and Chief Executive of investment banking firm Donaldson, Lufkin & Jenrette, Inc. Mr. Castle is a board member of various private equity companies, and he has previously been a director of numerous private and public companies. He also served as a Director of the Equitable Life Assurance Society of the U.S. Mr. Castle is a Life Member of the Corporation of the Massachusetts Institute of Technology. Previously, he had served for 22 years as a Trustee of New York Medical College, including 11 of those years as Chairman of the board. Mr. Castle is a Trustee and Chairman of the Executive Committee of the St. Patrick’s Cathedral in New York City and is a member of the Finance Council and various other entities associated with the Archdiocese of New York. From 2000 until March 2018, Mr. Castle was a Director of Castle Harlan Australian Mezzanine Partners Pty Ltd and a Director of CHAMP Group Holdings Pty Ltd, both part of the CHAMP Private Equity Group. He has served on various visiting committees at Harvard University, including the Harvard Business School. Mr. Castle received his Bachelor’s degree from the Massachusetts Institute of Technology, his M.B.A. as a Baker Scholar with High Distinction from Harvard University, and has four Honorary Doctorate Degrees of Humane Letters.