StockCIK 1156375

CME GROUP INC. (CME): Insider Trades and Fund Holdings

In the past 12 months, CME GROUP INC. insiders reported 1 open-market purchase worth $79K and 4 sales worth $5.87M; 0 of the sales were reported as made under a 10b5-1 trading plan.

1Insider buys, 12 months

$79KBought by insiders, 12 months

$5.87MSold by insiders, 12 months

5Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 27, 2026.

Recent CME insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 27	Oct 27	Sunil CutinhoChief Information Officer	Chief Information Officer	▼ SELL	5,000	298.70	$1.49M	−20%	Form 4 ↗
Oct 22	Oct 22	Martin J. GepsmanDirector	Director	▼ SELL	400	302.50	$121K	−1.6%	Form 4 ↗
Sep 28	Sep 25	William R. ShepardDirector	Director (ind.)	▲ BUY	293	268.76	$79K	+0.1%	Form 4 ↗
Sep 14	Sep 14	Elizabeth A. CookDirector	Director (ind.)	▼ SELL	500	280.11	$140K	−2.7%	Form 4 ↗
Sep 11	Sep 10	Terrence A. DuffyCEO	CEO	▼ SELL	15,000	274.44	$4.12M	−27%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

Insider	Role	Buys	Bought	Sells	Sold	Latest
Sunil Cutinho	Chief Information Officer	0	$0	1	$1.49M	Oct 27, 2026
Martin J. Gepsman	Director	0	$0	1	$121K	Oct 22, 2026
William R. Shepard	Director	1	$79K	0	$0	Sep 28, 2026
Elizabeth A. Cook	Director	0	$0	1	$140K	Sep 14, 2026
Terrence A. Duffy	CEO	0	$0	1	$4.12M	Sep 11, 2026

Tracked funds that report CME

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Renaissance Technologies	Q2 2026	680,049	$150.2M	0.21%	▲ +1854.2%
Viking Global Investors	Q2 2026	152,980	$33.8M	0.10%	▲ New
Markel Group	Q2 2026	49,750	$11.0M	0.08%	No change
Soros Fund Management	Q2 2026	30,028	$6.63M	0.09%	No change
Baupost Group	Q2 2026	619,000	$137K	2.52%	▲ New

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →