DUFFY TERRENCE A 4

What Happened

• Terrence A. Duffy, Chairman and CEO of CME Group (CME), had 62,902 performance shares vest on March 15, 2026 (coded as an award/acquisition). Those shares are reported at $311.40 each, valued at $19,587,683. To satisfy tax withholding, he surrendered 27,866 shares to the company on the same date (reported as a disposition) at the same per‑share value, equal to $8,677,472.

Key Details

• Transaction date: March 15, 2026; Form 4 filed March 17, 2026 (appears timely: two business days after the transaction).
• Award: 62,902 shares @ $311.40 = $19,587,683 (code A: award/vesting).
• Tax withholding: 27,866 shares surrendered @ $311.40 = $8,677,472 (code F: tax withholding).
• Shares owned after transaction: not specified in the filing.
• Footnotes: Vesting reflects performance shares granted in 2022 under CME’s Omnibus Stock Plan, paid based on total shareholder return vs. the S&P 500 over the 2023–2025 performance period. Mr. Duffy surrendered shares to the company to satisfy tax withholding obligations.

Context

• This was a vesting of performance-based restricted shares, not an open‑market purchase or voluntary sale. The surrender of shares to cover taxes is routine and does not necessarily indicate a change in insider sentiment.