CME Group Inc. Insider Trading Activity

This SEC filing details a transaction by Terrence A. Duffy, Chairman and CEO of CME Group Inc. On September 15, 2026, Mr. Duffy acquired 21,812 shares of Common Stock Class A at a price of $275.09 per share. This transaction, coded as an acquisition (A) and marked as direct ownership (D), brings his post-transaction holdings to 62,442 shares. The filing also notes that this acquisition represents a grant of restricted stock under the CME Group Omnibus Stock Plan, which vests in four equal annual installments, contingent upon continued service. The transaction was reported on Form 4, with the signature dated September 17, 2026.