[Form 4] CME Group Inc. Insider Trading Activity

Rhea-AI Filing Summary

CME Group director Deborah J. Lucas reported an acquisition of 532 shares of Class A Common Stock on June 25, 2025 at a price of $273.03 per share. The shares were granted pursuant to the CME Group Director Stock Plan.

Following this transaction, Lucas now beneficially owns 3,888 shares directly. The filing indicates this was a routine director stock grant rather than an open market purchase.

Key Transaction Details:

• Transaction Type: Stock Award (Code A)
• Ownership Type: Direct
• Role: Director
• Total Transaction Value: $145,251.96

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lucas Deborah J

(Last) (First) (Middle)

20 S. WACKER DRIVE

(Street)

CHICAGO IL 60606

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CME GROUP INC. [ CME ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock Class A	06/25/2025		A(1)		532	A	$273.03	3,888	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Remarks:

	By: Jenelle Chalmers For: Deborah J. Lucas	06/26/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many CME Group shares did Director Deborah Lucas acquire on June 25, 2025?

According to the Form 4 filing, Director Deborah Lucas acquired 532 shares of CME Group Class A Common Stock on June 25, 2025, at a price of $273.03 per share.

What is the total number of CME shares Deborah Lucas owns after the June 2025 transaction?

Following the reported transaction, Deborah Lucas directly owns 3,888 shares of CME Group Class A Common Stock.

How were the CME shares granted to Director Lucas in June 2025?

The shares were granted pursuant to the CME Group Director Stock Plan, as amended and restated, as indicated in the footnotes of the Form 4 filing.

Who filed the Form 4 for CME Director Deborah Lucas?

The Form 4 was filed by Jenelle Chalmers on behalf of Deborah J. Lucas on June 26, 2025, one day after the transaction date.

What is Deborah Lucas's role at CME Group according to the Form 4?

According to the Form 4 filing, Deborah Lucas serves as a Director of CME Group Inc., as indicated by the 'X' marked in the Director box under the relationship to issuer section.