William R Shepard has bought CME on 15 days since Dec 2022

Shepard William R. (commonly referenced as William R. Shepard) is a corporate insider and independent director of CME Group Inc. (CME), the leading global derivatives marketplace.( He has served on the CME Group board since the late 1990s and has been a member of the Chicago Mercantile Exchange for more than 40 years, including a term as second vice chairman from 2002 to 2007.( As a non-employee director, he sits on key board committees and continues to accumulate CME equity through both open-market purchases and director compensation programs, most recently increasing his holdings via dividend reinvestment and equity grants in June 2026.(

Beyond his board role, Shepard is founder and president of Shepard International, Inc., an introducing broker, reflecting his long-standing involvement in futures markets and brokerage operations.( His professional profile includes substantial personal ownership of CME Group stock—well over 250,000 Class A shares as of 2025–2026—and public estimates place his net worth in the tens of millions of dollars, largely tied to his CME holdings.( Shepard attended the University of Oklahoma, and industry coverage notes his low public profile despite his influential and long-tenured position in derivatives market governance.(

Written by Perplexity from public sources.