At what prices were the CME (CME) tax-withholding share surrenders valued?

The 274 shares surrendered on September 15, 2026 were valued at $275.09 per share, and the 274 shares surrendered on September 16, 2026 were valued at $272.46 per share, in each case for payment of tax withholding obligations.

Does Michael G. Dennis have any indirect CME (CME) share holdings?

Yes. The filing reports an indirect holding of 40.81 shares of CME Group Class A common stock held by spouse as of September 15, 2026.

CME exec granted 2,592 restricted shares

Q: What equity award did CME (CME) grant to Michael G. Dennis?

CME granted Michael G. Dennis 2,592 shares of Class A common stock as restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to his continued service.

Q: Why did Michael G. Dennis surrender CME (CME) shares on September 15 and 16, 2026?

He surrendered 274 shares on September 15, 2026 and 274 shares on September 16, 2026, totaling 548 shares, to CME Group to satisfy tax withholding obligations related to the vesting of previously granted restricted stock.

CME’s Global Head of Fixed Income received new restricted stock while surrendering shares to cover tax withholding on earlier awards.

Filing Impact

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Filing Sentiment

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Form Type

Rhea-AI Filing Summary

CME GROUP INC. (CME) reported that Michael G. Dennis, Global Head of Fixed Income, received a grant of 2,592 shares of Class A common stock on September 15, 2026 as restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service. On September 15 and 16, 2026, 274 shares were surrendered on each date (a total of 548 shares) to CME Group to satisfy tax withholding obligations in connection with vesting of previously granted restricted stock. The filing also reports 40.81 shares of Class A common stock held indirectly by his spouse.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Dennis Michael G.

Role Global Head of Fixed Income

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock Class A ^F2	274	$272.46	$75K
Grant/Award	Common Stock Class A ^F1	2,592	$275.09	$713K
Tax Withholding	Common Stock Class A ^F2	274	$275.09	$75K
holding	Common Stock Class A	--	--	--

Holdings After Transaction: Common Stock Class A — 10,682.3766 shares (Direct); Common Stock Class A — 40.81 shares (Indirect, by Spouse)

Footnotes (2)

F1. Represents a grant of restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service.
F2. Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person.

Key Figures

Restricted stock grant: 2,592 shares Vesting schedule: 4 equal annual installments Shares surrendered for tax withholding (total): 548 shares +3 more

6 metrics

Restricted stock grant 2,592 shares Grant of Class A common stock on September 15, 2026 under Omnibus Stock Plan

Vesting schedule 4 equal annual installments Restricted stock vests in four equal annual installments, subject to continued service

Shares surrendered for tax withholding (total) 548 shares 274 shares on September 15, 2026 and 274 shares on September 16, 2026

Tax-withholding share value (Sept. 15, 2026) $275.09 per share Value per share for 274 surrendered shares to cover tax withholding

Tax-withholding share value (Sept. 16, 2026) $272.46 per share Value per share for 274 surrendered shares to cover tax withholding

Indirect holdings by spouse 40.81 shares Class A common stock held indirectly by spouse as of September 15, 2026

Key Terms

restricted stock, Omnibus Stock Plan, tax withholding obligations

3 terms

restricted stock financial

"Represents a grant of restricted stock under the CME Group Omnibus Stock Plan"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Omnibus Stock Plan financial

"grant of restricted stock under the CME Group Omnibus Stock Plan, vesting"

tax withholding obligations financial

"satisfy tax withholding obligations in connection with the vesting of restricted"

FAQ

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

What equity award did CME (CME) grant to Michael G. Dennis?

CME granted Michael G. Dennis 2,592 shares of Class A common stock as restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to his continued service.

Why did Michael G. Dennis surrender CME (CME) shares on September 15 and 16, 2026?

He surrendered 274 shares on September 15, 2026 and 274 shares on September 16, 2026, totaling 548 shares, to CME Group to satisfy tax withholding obligations related to the vesting of previously granted restricted stock.

Were Michael G. Dennis’s CME (CME) transactions under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is not marked as affirming a plan, and there is no footnote stating that the transactions were made under a Rule 10b5-1 trading plan.

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

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Available on EDGAR 09/17/2026 - 04:20 PM EDT Accepted by SEC EDGAR 09/17/2026 - 04:20 PM EDT

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^*

Dennis Michael G.

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Global Head of Fixed Income

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock Class A	09/15/2026		A⁽¹⁾		2,592	A	$275.09	11,230.3766	D
Common Stock Class A	09/15/2026		F⁽²⁾		274	D	$275.09	10,956.3766	D
Common Stock Class A	09/16/2026		F⁽²⁾		274	D	$272.46	10,682.3766	D
Common Stock Class A								40.81	I	by Spouse

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents a grant of restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service.

2. Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person.

Remarks:

	/s/ Elizabeth Hensen, as Attorney-in-Fact for Michael G. Dennis	09/17/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR