Bryan T. Durkin has served as a member of our board and as an advisor to our CEO since May 2020. Formerly, Mr. Durkin served as President of CME Group from 2016, overseeing the company’s Technology, Global Operations, International and Data Services businesses. Mr. Durkin previously served as our Chief Commercial Officer since 2014 and as Chief Operating Officer since 2007. As part of his responsibilities, he led the global integrations following CME’s merger with CBOT in 2007 and CME Group’s acquisition of NYMEX in 2008. Before joining CME Group, Mr. Durkin served as Executive Vice President and Chief Operating Officer of the CBOT. Prior to that role, he was in charge of CBOT’s Office of Investigations and Audits. His career with both CME Group and CBOT has spanned more than 30 years. He previously served as a member of the COMEX Governors Committee and the CFTC’s Technology Advisory Committee and Energy and Environmental Markets Advisory Committee. Mr. Durkin serves on the Board of Advisors for Misericordia and on the Board of Trustees for Lewis University.

Elizabeth A. Cook has been a member of CME since 1983, starting her career in 1978 as a runner for Clayton Brokerage Inc. She is a member of the board’s compensation and audit committees. Ms. Cook actively participates as co-chair of the CME arbitration and floor conduct committees and serves on the board of the CME Gratuity Fund. In addition, she serves on CME’s membership and business conduct committees and continues her involvements as a CME political action committee member. Ms. Cook is the founder and owner of MiCat Group LLC, a firm specializing in option execution services focusing on equities, FX and interest rates. She also serves as president of Lucky Star LLC, a commercial property management company. Ms. Cook is also on the board of Women in Listed Derivatives and Associated Colleges of Illinois. Her external activities include NACD Governance Fellow and completion of its Director Professionalism course, member of Business Executives for National Security, Ambassador of the Navy Seal Foundation, Ambassador for The ALS Association Greater Chicago Chapter and an active supporter of Honor Flight Chicago. Ms. Cook has participated in numerous risk and audit educational programs and as a long-time market participant has significant risk management experience.

Bryan T. Durkin has served as a member of our board and as an advisor to our CEO since May 2020. Formerly, Mr. Durkin served as President of CME Group from 2016, overseeing the company’s Technology, Global Operations, International and Data Services businesses. Mr. Durkin previously served as our Chief Commercial Officer since 2014 and as Chief Operating Officer since 2007. As part of his responsibilities, he led the global integrations following CME’s merger with CBOT in 2007 and CME Group’s acquisition of NYMEX in 2008. Before joining CME Group, Mr. Durkin served as Executive Vice President and Chief Operating Officer of the CBOT. Prior to that role, he was in charge of CBOT’s Office of Investigations and Audits. His career with both CME Group and CBOT has spanned more than 30 years. He previously served as a member of the COMEX Governors Committee and the CFTC’s Technology Advisory Committee and Energy and Environmental Markets Advisory Committee. Mr. Durkin serves on the Board of Advisors for Misericordia and on the Board of Trustees for Lewis University.

Elizabeth A. Cook has been a member of CME since 1983, starting her career in 1978 as a runner for Clayton Brokerage Inc. She is a member of the board’s compensation and audit committees. Ms. Cook actively participates as co-chair of the CME arbitration and floor conduct committees and serves on the board of the CME Gratuity Fund. In addition, she serves on CME’s membership and business conduct committees and continues her involvements as a CME political action committee member. Ms. Cook is the founder and owner of MiCat Group LLC, a firm specializing in option execution services focusing on equities, FX and interest rates. She also serves as president of Lucky Star LLC, a commercial property management company. Ms. Cook is also on the board of Women in Listed Derivatives and Associated Colleges of Illinois. Her external activities include NACD Governance Fellow and completion of its Director Professionalism course, member of Business Executives for National Security, Ambassador of the Navy Seal Foundation, Ambassador for The ALS Association Greater Chicago Chapter and an active supporter of Honor Flight Chicago. Ms. Cook has participated in numerous risk and audit educational programs and as a long-time market participant has significant risk management experience.