CME CME GROUP INC. Insider Trading

CME Chief HR Officer Harris sold 5,753 shares at $304.63 for $1,752,536.39; holdings reduced to 27,702 shares

Piell Hilda Harris, Sr MD & Chief HR Officer, executed an open-market sale of 5,753 shares at $304.63 on 2026-05-18, reducing her holdings from 33,455 shares to 27,702 shares. Across her cross-ticker open-market history, her 4 prior sells averaged 90-day return of -3.8% with a 90d well-timed rate of 100.00%, though at CME specifically, all 4 prior sells executed on 2024-05-08 posted 90-day returns of -3.8% each. The current share price of $302.37 sits -8.1% from the 52-week high of $329.16, within the 52-week range of $257.17–$329.16. CME's fundamentals show revenue of $1,880,100,000.00 and net income of $1,154,300,000.00 in the latest quarter, with annual revenue growth of +6.4% and a P/E ratio of 4.90.

Terrence A Duffy sells 35,000 CME shares for $10,447,865.76; holds 55,630 post-transaction

Terrence A Duffy, Chairman and CEO of CME Group, executed 2 separate sales totaling 35,000 shares for $10,447,865.76 on 2026-05-15 at blended average price $298.51. This sale reduced his holdings by 38.6% to 55,630 shares remaining. The transaction occurred at prices materially below the current price of $305.12 and well below the 52-week high of $329.16. Across his cross-ticker track record, Duffy's 7 prior sells averaged a 90-day return of +2.4%, indicating his prior sales have generally preceded stock appreciation; at CME specifically, 2 of 5 prior sales posted negative 90-day returns. The stock is trading at a P/E of 4.94 on $1.9B quarterly revenue and $1.2B net income, with annual revenue growth of 6.4%.