CME Group (CME) officer gets performance shares, surrenders some for taxes

Rhea-AI Filing Summary

CME Group Inc. reported that MD and Chief Accounting Officer Jack J. Tobin received a grant of 608 shares of Class A common stock as a vested performance share award, valued at $311.40 per share. The award reflects performance shares granted in 2022, determined by CME’s total shareholder return versus the S&P 500 over a three-year period from January 1, 2023 through December 31, 2025. To cover related tax withholding obligations, Tobin surrendered 179 shares back to the company. After these compensation-related transactions, he directly holds 25,409 Class A shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Tobin Jack J

Role MD Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock Class A	608	$311.40	$189K
Tax Withholding	Common Stock Class A	179	$311.40	$56K

Holdings After Transaction: Common Stock Class A — 25,588 shares (Direct)

Footnotes (1)

1. Represents the vesting of performance shares granted in 2022 under CME Group's Omnibus Stock Plan. The number of shares was determined based on the company's achievement of total shareholder return relative to the S&P 500 measured over a three-year performance period from January 1, 2023 through December 31, 2025. Mr. Tobin surrendered shares to the company in order to fulfill tax withholding obligations related to the receipt of the performance share award.

Form 4 Insider Transactions: What Each Field Means →

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
Estimated average burden
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^*

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)
03/15/2026

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	03/15/2026		A		608(1)	A	$311.4	25,588	D
Common Stock Class A	03/15/2026		F		179(2)	D	$311.4	25,409	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. Represents the vesting of performance shares granted in 2022 under CME Group's Omnibus Stock Plan. The number of shares was determined based on the company's achievement of total shareholder return relative to the S&P 500 measured over a three-year performance period from January 1, 2023 through December 31, 2025.

2. Mr. Tobin surrendered shares to the company in order to fulfill tax withholding obligations related to the receipt of the performance share award.

Remarks:

	By: Margaret Austin Wright for Jack J. Tobin	03/17/2026
	** 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 Jack J. Tobin report for CME on this Form 4?

Jack J. Tobin reported a vested performance share award of 608 CME Group Class A common shares. The award stems from a 2022 grant under CME’s Omnibus Stock Plan, tied to total shareholder return performance versus the S&P 500 over three years.

How many CME shares did Jack J. Tobin surrender for taxes on his award?

Jack J. Tobin surrendered 179 CME Group Class A shares to the company to satisfy tax withholding obligations. This disposition is coded as a tax-withholding transaction (Code F), not an open-market sale, and is directly linked to the vested performance share award.

What performance period determined Jack J. Tobin’s CME performance share vesting?

The vested performance shares were based on CME Group’s total shareholder return versus the S&P 500. The measurement period ran from January 1, 2023 through December 31, 2025, determining how many shares from the 2022 grant ultimately vested.

How many CME shares does Jack J. Tobin own after these Form 4 transactions?

After the grant and tax-withholding surrender, Jack J. Tobin directly holds 25,409 shares of CME Group Class A common stock. This reflects his updated ownership position following the vesting of the performance share award and related tax-share surrender.

Is Jack J. Tobin’s CME Form 4 transaction an open-market trade?

No, the Form 4 reflects compensation-related activity, not an open-market trade. Tobin received vested performance shares from a 2022 grant and surrendered a portion of those shares back to CME Group solely to cover associated tax withholding obligations.