CME Group Ownership & Insider Activity

CME Group (CME) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.6% of shares outstanding. Institutional investors hold 61.5%. Over the past 90 days, insiders made 1 purchase worth $79K and 4 sales worth $5.9M.

Shares Outstanding

357.934M

Shares Float

320.875M

Insider Shares Owned

2.025M

Insider % Owned

0.6%

Institutional Shares Held

221.295M

Institutional % Held

61.5%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

$79K total

Sales (90d)

$5.9M total

Net Activity

Net Selling

Net Value (90d)

-$5.8M

CME Group Insider Transactions (Last 6 Months)

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Date	Insider	Title	Type	Shares	Price	Value
Oct 27, 2026	Sunil Cutinho	CHIEF INFORMATION OFFICER	SELL	5.000K	$298.70	$1.5M
Oct 22, 2026	Martin J Gepsman	DIRECTOR	SELL	400.000	$302.50	$121K
Sep 14, 2026	Elizabeth A Cook	DIRECTOR	SELL	500.000	$280.11	$140K
Sep 10, 2026	Terrence A Duffy	CHAIRMAN AND CEO	SELL	15.000K	$274.44	$4.1M
Aug 18, 2026	William R Shepard	DIRECTOR	BUY	292.550	$268.76	$79K
Jun 25, 2026	William R Shepard	DIRECTOR	BUY	1.406K	$226.34	$318K
May 18, 2026	Hilda Harris Piell	SR MD & CHIEF HR OFFICER	SELL	5.753K	$304.63	$1.8M
May 15, 2026	Terrence A Duffy	CHAIRMAN AND CEO	SELL	35.000K	$298.51	$10.4M

Congressional Trading Activity

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Date	Member	Party	Chamber	Action	Amount
Jun 16, 2026	Gilbert Ray Cisneros	D	House	Sale (Partial)	$1,001 - $15,000
Mar 27, 2026	Alan Armstrong	R	Senate	Purchase	$1,001 - $15,000
Jan 9, 2026	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
Dec 18, 2025	Julie Johnson	D	House	Sale	$1,001 - $15,000
Nov 13, 2025	Julie Johnson	D	House	Sale (Partial)	$1,001 - $15,000
Sep 23, 2025	Val Hoyle	D	House	Sale	$1,001 - $15,000
Aug 14, 2025	Julie Johnson	D	House	Sale (Partial)	$1,001 - $15,000
Aug 11, 2025	Julie Johnson	D	House	Purchase	$1,001 - $15,000
Jul 22, 2025	Julie Johnson	D	House	Purchase	$1,001 - $15,000
May 21, 2025	Val Hoyle	D	House	Purchase	$1,001 - $15,000
May 12, 2025	Jefferson Shreve	R	House	Sale	$15,001 - $50,000
Apr 8, 2025	Robert Bresnahan	R	House	Purchase	$1,001 - $15,000
Mar 10, 2025	Carol Miller	R	House	Purchase	$1,001 - $15,000
Sep 4, 2024	John James	R	House	Sale	$1,001 - $15,000
Jul 2, 2024	Kathy Manning	D	House	Sale (Partial)	$1,001 - $15,000
Jul 2, 2024	Kathy Manning	D	House	Sale (Partial)	$1,001 - $15,000
Jan 23, 2024	Kathy Manning	D	House	Purchase	$1,001 - $15,000
Jan 17, 2024	Thomas R. Carper	D	Senate	Purchase	$1,001 - $15,000
Dec 6, 2023	Michael Burgess	R	House	Sale	$15,001 - $50,000
Nov 10, 2023	John James	R	House	Purchase	$1,001 - $15,000

CME Group Inc