CME director granted 645 fully vested shares

Tierney Robert J JR reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Tierney Robert J JR reported acquisition or exercise transactions in this Form 4 filing.

CME Group Inc. director Robert J. Tierney Jr. received a grant of 645 shares of Class A common stock on June 25, 2026. The shares were valued at $225.00 per share for reporting purposes and were issued as part of the company’s annual equity compensation program for non-employee directors.

The award consists of fully vested shares under the CME Group Director Stock Plan and is not subject to any vesting conditions, meaning Tierney has full ownership upon grant. Following this equity grant, he directly holds 14,345 shares of CME Group Class A common stock.

Insider Trade Summary

Grant/Award: 645 shares

Grant/Award 1 txn

Insider Tierney Robert J JR

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock Class A	645	$225.00	$145K

Holdings After Transaction: Common Stock Class A — 14,345 shares (Direct)

Footnotes (1)

1. F1. Represents a grant of fully vested shares of Class A Common Stock issued to the Reporting Person as part of the Issuer's annual equity compensation program for non-employee directors under the CME Group Director Stock Plan. These shares are not subject to any vesting conditions.

Key Figures

Shares granted: 645 shares Reported share value: $225.00 per share Shares held after transaction: 14,345 shares

3 metrics

Shares granted 645 shares Equity compensation grant on June 25, 2026

Reported share value $225.00 per share Value used for the 645-share grant

Shares held after transaction 14,345 shares Director’s direct holdings following the grant

Key Terms

annual equity compensation program, fully vested shares, CME Group Director Stock Plan, grant, award, or other acquisition

4 terms

annual equity compensation program financial

"issued to the Reporting Person as part of the Issuer's annual equity compensation program for non-employee directors"

fully vested shares financial

"Represents a grant of fully vested shares of Class A Common Stock"

CME Group Director Stock Plan financial

"for non-employee directors under the CME Group Director Stock Plan"

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did CME (CME) director Robert J. Tierney Jr. report on this Form 4?

Robert J. Tierney Jr. reported receiving 645 shares of CME Group Class A common stock. These shares were granted as equity compensation for his role as a non-employee director, increasing his direct holdings to 14,345 shares after the transaction.

Was the CME (CME) Form 4 transaction a stock purchase or a grant?

The transaction was a grant, not an open-market purchase. Tierney received 645 fully vested shares as a grant under CME Group’s Director Stock Plan, categorized as a “grant, award, or other acquisition” rather than a discretionary market buy.

What is the reported value of the shares granted to the CME (CME) director?

The 645 granted shares were reported at a price of $225.00 per share. This price is used for reporting purposes on the Form 4 and reflects the value assigned to the director’s annual equity compensation award.

How many CME (CME) shares does Robert J. Tierney Jr. hold after the grant?

After receiving the 645-share grant, Tierney directly holds 14,345 shares of CME Group Class A common stock. This total reflects his updated direct ownership position immediately following the reported equity compensation transaction.

Are the CME (CME) shares granted to the director subject to vesting conditions?

The granted shares are not subject to vesting conditions. The footnote explains that the 645 Class A shares are fully vested upon grant as part of CME Group’s annual equity compensation program for non-employee directors under the Director Stock Plan.

Under which plan were the CME (CME) shares granted to the director?

The shares were issued under the CME Group Director Stock Plan. The footnote states they are part of the issuer’s annual equity compensation program for non-employee directors, delivered as fully vested Class A common stock without vesting restrictions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/29/2026 - 04:31 PM EDT Learn about SEC filing dates

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^*

Tierney Robert J JR

(Last) (First) (Middle)

20 S. WACKER DRIVE

(Street)

CHICAGO ILLINOIS 60606

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2026

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

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

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

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	06/25/2026		A(1)		645	A	$225	14,345	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 a grant of fully vested shares of Class A Common Stock issued to the Reporting Person as part of the Issuer's annual equity compensation program for non-employee directors under the CME Group Director Stock Plan. These shares are not subject to any vesting conditions.

Remarks:

	/s/ Elizabeth Hensen, as Attorney-in-Fact for Robert J. Tierney Jr.	06/29/2026
	** 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.
* Form 4: SEC 1474 (03-26)