Michael G. Dennis - 15 Sep 2025 Form 4 Insider Report for CME GROUP INC. (CME)

Role: Global Head of Fixed Income
Signature: By: Margaret Austin Wright For: Michael G. Dennis
Issuer symbol: CME
Transactions as of: 15 Sep 2025
Net transactions value: +$599,938
Form type: 4
Filing time: 17 Sep 2025, 13:48:38 UTC
Previous filing: 17 Sep 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Dennis Michael G.	Global Head of Fixed Income	20 S. WACKER DRIVE, CHICAGO	By: Margaret Austin Wright For: Michael G. Dennis	17 Sep 2025	0001811883

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CME	Common Stock Class A	Award	$675,029	+2,608	+41%	$258.83	8,927	15 Sep 2025	Direct
transaction	CME	Common Stock Class A	Tax liability	$75,091	-289	-3.2%	$259.83	8,638	16 Sep 2025	Direct	F1
holding	CME	Common Stock Class A						41	15 Sep 2025	by Spouse

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Mr. Dennis surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on September 16, 2025.