CME Group (CME) accounting chief makes bona fide gift of 105 shares

Rhea-AI Filing Summary

CME Group Inc. managing director and chief accounting officer Jack J. Tobin made a bona fide gift of 105 shares of Class A common stock on March 11, 2026. After this charitable transfer, he continues to hold 24,980 shares directly, indicating the gift represents a small portion of his stake.

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

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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^*

Tobin Jack 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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

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	03/11/2026		G		105	D	$0	24,980	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:

Remarks:

	By: Margaret Austin Wright for Jack J. Tobin	03/12/2026
	** 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

What insider transaction did CME (CME) report for Jack J. Tobin?

CME reported that Jack J. Tobin made a bona fide gift of 105 shares of Class A common stock on March 11, 2026. This was a charitable transfer, not an open-market purchase or sale, and carried no stated price per share.

Was the CME (CME) insider transaction a sale or a gift?

The transaction was a bona fide gift, not a sale. Jack J. Tobin transferred 105 Class A common shares at a reported price of $0.00 per share, reflecting a non-market transfer typically associated with charitable or personal gifting, rather than trading activity.

How many CME (CME) shares does Jack J. Tobin hold after the gift?

Following the gift, Jack J. Tobin directly holds 24,980 shares of CME Group Class A common stock. This post-transaction balance, reported in the Form 4, shows he retained the substantial majority of his position after transferring 105 shares as a gift.

What role does Jack J. Tobin hold at CME (CME)?

Jack J. Tobin serves as managing director and chief accounting officer at CME Group Inc. His position is disclosed in the Form 4, identifying him as an officer rather than a director or 10% beneficial owner in connection with this gifting transaction.

Does the CME (CME) Form 4 show any stock option exercises or derivatives?

The Form 4 does not list any derivative transactions for this event. The filing shows only a non-derivative movement: a bona fide gift of 105 Class A common shares, with no option exercises, conversions, or other derivative-related activity reported in the derivative summary.

How many CME (CME) shares were gifted in total in this Form 4?

The Form 4 reports a single gifting transaction totaling 105 shares of Class A common stock. Transaction summary data confirms one gift transaction and 105 gifted shares, with no additional gifts, sales, purchases, or tax-withholding dispositions disclosed for this reporting period.