CME Group grants 700 restricted shares to CAO

CME’s chief accounting officer reported a new restricted stock grant and share surrenders to cover tax withholding on vested awards.

Rhea-AI Filing Summary

CME GROUP INC. reported that Jack J. Tobin, its Managing Director and Chief Accounting Officer, received a grant of 700 shares of Class A common stock on September 15, 2026 at $275.09 per share as restricted stock under the CME Group Omnibus Stock Plan. In connection with vesting of previously granted restricted stock, a total of 347 shares of Class A common stock were surrendered to CME Group to satisfy tax withholding obligations on September 15 and 16, 2026 at per-share prices of $275.09 and $272.46, respectively. No Rule 10b5-1 trading plan is reported for these transactions.

Insider Trade Summary

5 transactions reported

Mixed 5 txns

Insider Tobin Jack J

Role MD Chief Accounting Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock Class A F2	51	$272.46	$14K
Grant/Award	Common Stock Class A F1	700	$275.09	$193K
Tax Withholding	Common Stock Class A F2	44	$275.09	$12K
Tax Withholding	Common Stock Class A F2	47	$275.09	$13K
Tax Withholding	Common Stock Class A F2	205	$275.09	$56K

Holdings After Transaction: Common Stock Class A — 25,762 shares (Direct)

Footnotes (2)

1. F1. Represents a grant of restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service.
2. 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: 700 shares Grant price per share: $275.09 per share Shares surrendered for tax withholding: 347 shares +4 more

7 metrics

Restricted stock grant 700 shares Grant of Class A common stock on September 15, 2026

Grant price per share $275.09 per share Price reported for the 700-share restricted stock grant on September 15, 2026

Shares surrendered for tax withholding 347 shares Total code F dispositions to satisfy tax withholding obligations on September 15–16, 2026

Tax-withholding price (September 15, 2026) $275.09 per share Per-share value for 44, 47, and 205 surrendered shares on September 15, 2026

Tax-withholding price (September 16, 2026) $272.46 per share Per-share value for 51 surrendered shares on September 16, 2026

Code F transactions 4 transactions; 347 shares Shares delivered or withheld to satisfy tax withholding obligations

Code A transactions 1 transaction; 700 shares Grant or award acquisition of restricted stock

Key Terms

restricted stock, Omnibus Stock Plan, tax withholding obligations, Rule 10b5-1

4 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"

tax withholding obligations financial

"satisfy tax withholding obligations in connection with the vesting"

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported for these transactions"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

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

What equity award did CME (CME) grant to Jack J. Tobin?

CME granted Jack J. Tobin 700 shares of Class A common stock as restricted stock on September 15, 2026 at $275.09 per share, under the CME Group Omnibus Stock Plan, vesting in four equal annual installments subject to continued service.

How many CME (CME) shares were surrendered for tax withholding?

A total of 347 shares of CME Class A common stock were surrendered to the issuer to satisfy tax withholding obligations related to the vesting of previously granted restricted stock, through four code F transactions on September 15, 2026 and one on September 16, 2026.

What prices were used for the CME (CME) tax-withholding share surrenders?

The surrendered CME shares for tax withholding were valued at $275.09 per share for the four September 15, 2026 transactions and $272.46 per share for the September 16, 2026 transaction, as reported in the Form 4 filing.

Were Jack J. Tobin’s CME (CME) transactions made under a Rule 10b5-1 plan?

No. The filing indicates that the Rule 10b5-1 checkbox is not marked, and there is no footnote stating that the transactions were made pursuant to a Rule 10b5-1 or other pre-arranged trading plan.

What is the vesting schedule for Jack J. Tobin’s new CME (CME) restricted stock?

The 700-share restricted stock grant to Jack J. Tobin vests in four equal annual installments, and the vesting is subject to continued service, according to the footnote describing the award.

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

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Available on EDGAR 09/17/2026 - 04:28 PM Accepted by SEC EDGAR 09/17/2026 - 04:27 PM 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^*

Tobin Jack J

(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)
	MD Chief Accounting Officer

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock Class A	09/15/2026		A(1)		700	A	$275.09	26,109	D
Common Stock Class A	09/15/2026		F(2)		44	D	$275.09	26,065	D
Common Stock Class A	09/15/2026		F(2)		47	D	$275.09	26,018	D
Common Stock Class A	09/15/2026		F(2)		205	D	$275.09	25,813	D
Common Stock Class A	09/16/2026		F(2)		51	D	$272.46	25,762	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 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 Jack J. Tobin	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)