Form 4 for CME CME Group

Accepted 2026-09-17 16:22:01 ET · period of report 2026-09-15 · accession 0001915955-26-000003 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2026-09-17 16:22	2026-09-15	CME	Fitzpatrick Lynne	Pres, CFO	A - Grant	$275.09	+4,088	28.0K	+17%	+$1.12M
M	2026-09-17 16:22	2026-09-15+	CME	Fitzpatrick Lynne	Pres, CFO	F - Tax	$274.39	-1,340	26.7K	-5%	-$367.7K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock Class A	2026-09-15	A	A	4,088	$275.09	28,001	D	—	—	(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	Common	Common Stock Class A	2026-09-15	F	D	249	$275.09	27,752	D	—	—	(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.
3	Common	Common Stock Class A	2026-09-15	F	D	275	$275.09	27,477	D	—	—	(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.
4	Common	Common Stock Class A	2026-09-15	F	D	457	$275.09	27,020	D	—	—	(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.
5	Common	Common Stock Class A	2026-09-16	F	D	359	$272.46	26,661	D	—	—	(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.