Form 4 Filing for William W. Hobert

This filing details transactions made by William W. Hobert, a director at CME Group Inc., concerning Class A Common Stock. On May 1, 2026, 20,320 shares were distributed in-kind from WH Trading LLC to Mr. Hobert, who no longer shares voting or dispositive power over shares held by WH Trading LLC as he is no longer its managing member. This distribution was considered a non-cash transaction. An administrative adjustment of 20.531 shares was made to reflect accurate beneficial ownership. On June 25, 2026, Mr. Hobert acquired 645 shares and 422 shares, both at a price of $225.00 per share. These acquisitions were part of the company's annual equity compensation program for non-employee directors and shares issued in lieu of a cash retainer, respectively. The post-transaction number of shares owned by Mr. Hobert is 108,005.531.