John W. Pietrowicz had a 20-year career at CME Group where he served as Chief Financial Officer from 2014 until his retirement in April 2023. Prior to joining CME Group, Mr. Pietrowicz held financial leadership positions for Ameritech, after beginning his career as an auditor for Arthur Andersen. Mr. Pietrowicz previously served as a director on the boards of the World Federation of Exchanges, Bolsa Mexicana de Valores, and S&P Dow Jones Indices. He also served as a member of the Financial Accounting Standards Advisory Committee. Mr. Pietrowicz currently is an independent board director of Marex, a global financial services firm. Mr. Pietrowicz holds a Bachelor of Business Administration in Accountancy from the University of Notre Dame and a Master of Business Administration in Finance from Loyola University Chicago. He is also a Certified Public Accountant.