$CME

$308.06 +$2.35 (0.77%) Close

$CME Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 358.0M shares outstanding

Who owns CME?

By type of holder

Institutions 89.3% Insiders 0.0% Everyone else 10.7%

Concentration Top 10 holders own 33.6%

BlackRock, Inc. 8.5% · Vanguard Capital Management LLC 6.6%

Institutional ownership

89.3%

0.0 pts vs last qtr

Institutional holders

1,689

-103 vs last qtr

Net shares bought

+137.0K

by institutions in Q2 2026

New / sold out

164 / 267

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Norges Bank NEW +4.8M
Jupiter Topco LLC NEW +1.8M

Biggest sellers in Q2 2026

Jpmorgan Chase & Co −6.4M
Price T Rowe Associates Inc /MD/ −2.7M

Who is planning to sell?

Notices of proposed sale, last 12 months

$30.2M

15 notices from 12 people

Shares covered

104.9K

0.03% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Terrence Duffy Officer $21.3M
Sammann Derek Director $1.98M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+6.3%

+0.68% a year

Each share's claim on the business

−5.9%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $817M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years80% 3–5 years3% 1–3 years8% Under 1 year9%

Quarterly turnover

12.2%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting CME on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	30.6M	8.54%	−881.9K (−2.8%)	≤2021	0.1%
Shares held by quarter Peak holding32.6M (Q1'25) Change over 8 quarters+1.8M Share of the company8.540% BlackRock, Inc.'s full portfolio →
VC Vanguard Capital Management LLC	23.7M	6.61%	+294.6K (+1.3%)	≤2021	0.1%
Shares held by quarter Peak holding23.7M (Q2'26) Change over 8 quarters+23.7M Share of the company6.610% Vanguard Capital Management LLC's full portfolio →

BlackRock, Inc.

30.6M

% of company

8.54%

Change vs last qtr

−881.9K (−2.8%)

Held since

≤2021

Vanguard Capital Management LLC

23.7M

% of company

6.61%

Change vs last qtr

+294.6K (+1.3%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding CME Group Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting CME on Form N-PORT; together they hold 32.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$2.54B	11.5M	3.21%	0.11%	June 30, 2026
V5 Vanguard 500 Index Fund Vanguard Index Funds	$2.07B	9.4M	2.62%	0.12%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$2.54B

% of company

3.21%

% of the fund

0.11%

As of

June 30, 2026

Vanguard 500 Index Fund

Vanguard Index Funds

Position value

$2.07B

% of company

2.62%

% of the fund

0.12%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding CME Group Inc. and how much of the fund the position is.

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