<div id="readability-page-1"><div><p>On September 9, 2025, Jack Tobin, the Managing Director and Chief Accounting Officer of CME Group Inc. (the Company) notified the Company of his decision to retire from the Company. Mr. Tobin will remain in his role as Chief Accounting Officer until October 30, 2026. Mr. Tobin has served in the Chief Accounting Officer role since 2015 and has been with the Company for more than 23 years.</p><p>His retirement is voluntary and not due to any disagreements regarding the Company's accounting, operations, policies or practices. The Company will initiate a search of potential candidates for the role and Mr. Tobin will work with his successor to support a smooth transition of responsibilities.</p></div></div>

<p>CME Group Inc. announced that Jack Tobin, the Chief Accounting Officer, will retire on October 30, 2026. Tobin, who has been with the company for over 23 years and in his current role since 2015, notified the company of his decision on September 9, 2025. His retirement is voluntary and not due to any disagreements. The company will begin searching for his successor, and Tobin will assist in the transition.</p>

CME Group Inc. Announces the Retirement of Jack Tobin as Chief Accounting Officer on October 30, 2026