CME Group Inc: director Martin J Gepsman sold 400 shares

What happened

• Martin J Gepsman, a director of CME Group Inc, sold 400 shares at $302.50 per share on Oct 22, 2026, for $121,000. The transaction is described as an open-market or private sale (code S) in the Form 4.

Key details

• Transaction date and price: Oct 22, 2026 — 400 shares sold at $302.50 per share for $121,000.
• Method: open-market or private sale (S).
• Shares owned after the transaction: not stated in the filing.
• Footnotes/plan: the filing does not report a 10b5-1 plan, tax withholding, or other footnotes.
• Filing: Form 4 filed Oct 22, 2026; the filing does not indicate the transaction was late.

Why it may matter

• This transaction is reported as a sale (code S); it is not reported as an option exercise or a gift.
• A filing does not show why the insider traded or why the company acted.