Annual Meeting

March 10, 2025

You are entitled to attend the annual meeting only if you were, or you hold a valid legal proxy naming you to act for, one of our shareholders on the record date. Please note that seating is limited, and admission will be accepted on a first-come basis.  

If you plan to attend the meeting, you should register in advance. Please go to the “shareholder meeting registration” link at www.proxyvote.com and follow the instructions provided. You will need the 16-digit control number located on your Notice of Internet Availability of Proxy Materials (Notice), proxy card or voter instruction form. Please print your registration confirmation and bring it with you to the meeting along with valid photo identification, such as a driver’s license or passport. If you do not have a printed registration confirmation, we must be able to confirm:

• your identity by reviewing a valid form of photo identification, such as a driver’s license; and
• you were a registered shareholder or held your shares in street name on the record date by:
  • verifying your name and stock ownership against our list of registered shareholders; or
  • reviewing other evidence of your stock ownership that shows your current name and address, such as a copy of your most recent brokerage or bank statement or the Notice, if you hold your shares in street name; or
• you are validly acting as proxy:
  • for a registered shareholder as of the record date, by reviewing a written legal proxy granted to you and signed by the registered shareholder; or
  • for a street name holder as of the record date, by reviewing a written legal proxy from a brokerage firm or bank holding the shares to the street name holder that is assignable, and a written legal proxy to you signed by the street name holder, together with a brokerage or bank statement or Notice showing the street name holder’s shares as described above.

Shareholders of record (shareholders having an account at Computershare, our transfer agent) have the following ways to cast their vote:

• OVER THE INTERNET — You can vote over the Internet at www.proxyvote.com by following the instructions provided in the Notice or proxy card. You will need the 16-digit control number or the unique QR code that appears on your Notice or proxy card when you access the webpage.  You may vote until 10:59 p.m., Central Time, on Wednesday, May 7, 2025.
• BY MAIL — If you requested to receive printed proxy materials, you can vote by mail pursuant to instructions provided on the proxy card.  Be sure to allow sufficient time for delivery.
• BY PHONE — Registered owners of Class A and Class B shares may vote by calling 1-800-690-6903 (toll free). You will need the 16-digit control number that appears on your Notice or proxy card for each class of shares you are voting.  You may vote until 10:59 p.m., Central Time, on Wednesday, May 7, 2025
  
• IN PERSON — BY ATTENDING THE ANNUAL MEETING.

For holders in street name (shareholders holding through a bank, broker or other intermediary), your proxy materials include a voting instruction form from the institution holding your shares. The availability of Internet or telephone voting will depend upon the institution’s voting processes. Please contact the institution holding your shares for more information.

If you are a registered shareholder of Class A and/or Class B shares as of the record date and cannot locate your 16-digit control number(s), you may contact Broadridge, as our Inspector of Election, to obtain your 16-digit control number(s) by calling 1-866-232-3037 (toll free) or 1-720-358-3640 (Non-U.S. toll free).

You will be asked to provide information to confirm your identity (e.g., name and address for the account) as a CME Group shareholder as of the record date.

You will then be able to use your 16-digit control number(s) to vote over the Internet or by phone as set forth above. Broadridge will not accept votes over the phone during the process of providing control numbers. 

We encourage you to vote your shares prior to the meeting, even if you plan to attend the annual meeting.

To vote your shares you will need the control number included in your materials. To ensure delivery and access to your control number, we recommend that you sign up to receive your materials electronically per the instructions below. If you are not receiving your materials electronically, please make sure your mailing address is up to date.  Please take such action at least 2 business days prior to the record date of March 10, 2025. More information on the process to sign up for electronic delivery is here.

Thursday, May 8, 2025
10:00 a.m. CST

Auditorium at CME Group’s headquarters

May be submitted in advance to annualmeeting@cmegroup.com

Shareholder Relations
annualmeeting@cmegroup.com
(630) 696-6101