SEC ownership of CME GROUP INC.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001156375.

Comparable stake leader

VANGUARD CAPITAL MANAGEMENT LLC

Disclosed value leader

VANGUARD CAPITAL MANAGEMENT LLC

Comparable rows

50/50

Latest evidence

30 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001156375
Issuer location
Chicago, IL

Ownership snapshot

Top shareholders of CME GROUP INC. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
VANGUARD CAPITAL MANAGEME...
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G 13F Lead comparable stake: 7.4% 13D/G row: VANGUARD CAPITAL MANAGEMENT LLC Showing 1-8 of 50 holder rows.

Quick read

VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.4%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership Top 5
VANGUARD CAPITAL MANAGEMENT LLC 7.4%
BlackRock, Inc. 8.4%
STATE STREET CORP 4.5%
MORGAN STANLEY 2.7%
GEODE CAPITAL MANAGEMENT, LLC 2.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
7.4%
$7,987,654,803
27,044,709 shares
$0 31 Mar 2026
BlackRock, Inc.
13F
Company
13F
8.4%
$6,749,965,373
30,566,342 shares
30 Jun 2026
STATE STREET CORP
13F
Company
13F
4.5%
$3,609,724,721
16,346,170 shares
30 Jun 2026
MORGAN STANLEY
13F
Company
13F
2.7%
$2,148,277,844
9,728,195 shares
30 Jun 2026
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
2.6%
$2,047,429,125
9,271,309 shares
30 Jun 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
Company
13F
2.5%
$2,024,464,325
9,167,524 shares
30 Jun 2026
Capital World Investors
13F
Company
13F
1.9%
$1,506,571,372
6,822,315 shares
30 Jun 2026
JPMORGAN CHASE & CO
13F
Company
13F
1.6%
$1,260,711,104
5,767,731 shares
30 Jun 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$29,448,318.

Buys
$660,967
Insiders: 1
Sells
$30,109,285
Insiders: 10
Net
-$29,448,318
Shares: -102,199
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 2,345 Shares: 104,544
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 339 15,500 $78,186 $4,256,594 -$4,178,408
3-6 1,470 40,753 $437,101 $12,200,402 -$11,763,301
6-9 262 14,699 $73,008 $4,562,441 -$4,489,433
9-12 274 33,592 $72,672 $9,089,848 -$9,017,176

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 41 reporting-owner rows connected to CME GROUP INC.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
41
Largest Forms 3/4/5 holder
William R. Shepard
Net 12M change
-$29,345,614
Latest report
15 Sep 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
William R. Shepard Director $60,885,026 +$660,967 +1.1% Filing P/S 25 Jun 2026
William W. Hobert Director $48,045,909 Mixed 01 May 2026
Howard J. Siegel Director $34,027,524 Mixed 25 Jun 2026
Patrick J. Mulchrone Director $18,055,436 Mixed 25 Jun 2026
Larry G. Gerdes Director $17,643,970 Mixed 24 Apr 2025
Julie Holzrichter Sr MD Chief Operating Officer $17,192,178 Mixed 15 Sep 2024
Bryan T. Durkin Director $13,317,117 -$1,300,530 -8.9% Mixed 25 Jun 2026
Kevin Kometer Sr MD Chief Information Office $12,795,625 Mixed 10 Feb 2022
John W. Pietrowicz Sr MD Chief Financial Officer $11,182,381 Mixed 15 Sep 2022
Terrence A. Duffy Chairman and CEO, Director $11,174,468 -$21,303,221 -66% Mixed 15 Sep 2026
Hilda Harris Piell Sr MD & Chief HR Officer $8,438,860 -$1,752,536 -17% Filing P/S 18 May 2026
Kathleen M. Cronin Sr MD Gen Counsel & Corp Secr $8,394,377 Mixed 15 Mar 2022
Derek Sammann Sr MD Gl Hd Commodities Mkts $7,829,826 -$1,984,798 -20% Mixed 15 Sep 2026
Martin J. Gepsman Director $7,647,194 -$91,770 -1.2% Mixed 25 Jun 2026
Julie Winkler Sr MD Chief Commercial Officer $6,628,782 Mixed 15 Sep 2026
Jack J. Tobin MD Chief Accounting Officer $6,517,835 Mixed 15 Sep 2026
Robert J. Tierney Jr. Director $6,296,419 Mixed 25 Jun 2026
Lynne Fitzpatrick President and CFO $5,436,682 Mixed 15 Sep 2026
Timothy S. Bitsberger Director $5,285,791 Mixed 25 Jun 2026
Elizabeth A. Cook Director $5,022,977 -$460,055 -8.4% Mixed 14 Sep 2026

Recent insider transactions for CME GROUP INC.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Julie Winkler CME Common Stock Class A Tax liability -1.12% -359 31,561 16 Sep 2026 Direct
Ken Vroman CME Common Stock Class A Tax liability -1.5% -308 20,232 16 Sep 2026 Direct
Jack J. Tobin CME Common Stock Class A Tax liability -0.2% -51 25,762 16 Sep 2026 Direct
Suzanne Sprague CME Common Stock Class A Tax liability -1.94% -308 15,548 16 Sep 2026 Direct
Derek Sammann CME Common Stock Class A Tax liability -3.42% -359 10,134 16 Sep 2026 Direct
Timothy Francis McCourt CME Common Stock Class A Tax liability -2.65% -364 13,366 16 Sep 2026 Direct
John Clifford Marchese CME Common Stock Class A Tax liability -1.21% -44 3,598 16 Sep 2026 Direct
Lynne Fitzpatrick CME Common Stock Class A Tax liability -1.33% -359 26,661 16 Sep 2026 Direct
Michael G. Dennis CME Common Stock Class A Tax liability -2.5% -274 10,682 16 Sep 2026 Direct
Sunil Cutinho CME Common Stock Class A Tax liability -1.41% -359 25,037 16 Sep 2026 Direct
Julie Winkler CME Common Stock Class A Tax liability -3.2% -1,054 31,920 15 Sep 2026 Direct
Julie Winkler CME Common Stock Class A Award 9.51% 2,864 32,974 15 Sep 2026 Direct
Ken Vroman CME Common Stock Class A Tax liability -4.21% -903 20,540 15 Sep 2026 Direct
Ken Vroman CME Common Stock Class A Award 13.8% 2,592 21,443 15 Sep 2026 Direct
Jack J. Tobin CME Common Stock Class A Tax liability -1.13% -296 25,813 15 Sep 2026 Direct
Jack J. Tobin CME Common Stock Class A Award 2.75% 700 26,109 15 Sep 2026 Direct
Suzanne Sprague CME Common Stock Class A Tax liability -5.05% -844 15,856 15 Sep 2026 Direct
Suzanne Sprague CME Common Stock Class A Award 20.7% 2,864 16,700 15 Sep 2026 Direct
Derek Sammann CME Common Stock Class A Tax liability -9.13% -1,054 10,493 15 Sep 2026 Direct
Derek Sammann CME Common Stock Class A Award 33% 2,864 11,547 15 Sep 2026 Direct
Timothy Francis McCourt CME Common Stock Class A Tax liability -6.6% -970 13,730 15 Sep 2026 Direct
Timothy Francis McCourt CME Common Stock Class A Award 21.4% 2,592 14,700 15 Sep 2026 Direct
John Clifford Marchese CME Common Stock Class A Tax liability -5.13% -197 3,642 15 Sep 2026 Direct
John Clifford Marchese CME Common Stock Class A Award 25.7% 784 3,839 15 Sep 2026 Direct
Lynne Fitzpatrick CME Common Stock Class A Tax liability -3.5% -981 27,020 15 Sep 2026 Direct
Lynne Fitzpatrick CME Common Stock Class A Award 17.1% 4,088 28,001 15 Sep 2026 Direct
Terrence A. Duffy CME Common Stock Class A Award 53.7% 21,812 62,442 15 Sep 2026 Direct
Michael G. Dennis CME Common Stock Class A Tax liability -2.44% -274 10,956 15 Sep 2026 Direct
Michael G. Dennis CME Common Stock Class A Award 30% 2,592 11,230 15 Sep 2026 Direct
Sunil Cutinho CME Common Stock Class A Tax liability -3.98% -1,054 25,396 15 Sep 2026 Direct
Sunil Cutinho CME Common Stock Class A Award 12.1% 2,864 26,450 15 Sep 2026 Direct
Elizabeth A. Cook CME Common Stock Class A Sale -2.72% $140,055 $280.11 -500 17,916 14 Sep 2026 by Trust
Terrence A. Duffy CME Common Stock Class A Sale -27% $4,116,539 $274.44 -15,000 40,630 10 Sep 2026 Direct
Robert J. Tierney Jr. CME Common Stock Class A Award 4.71% 645 14,345 25 Jun 2026 Direct
Martin J. Gepsman CME Common Stock Class A Award 2.58% 645 25,644 25 Jun 2026 Direct
William R. Shepard CME Common Stock Class A Purchase 0.12% $74,885 $230.57 325 260,442 25 Jun 2026 by Trust
William R. Shepard CME Common Stock Class A Purchase 0.4% $3,301 $230.57 14.32 3,621 25 Jun 2026 Direct
William R. Shepard CME Common Stock Class A Award 42% 1,067 3,606 25 Jun 2026 Direct
Rahael Seifu CME Common Stock Class A Award 15.8% 645 4,739 25 Jun 2026 Direct
Dennis A. Suskind CME Common Stock Class A Award 23.9% 645 3,344 25 Jun 2026 Direct
Howard J. Siegel CME Common Stock Class A Award 2.23% 1,067 48,858 25 Jun 2026 Direct
Patrick J. Mulchrone CME Common Stock Class A Award 2.26% 645 29,130 25 Jun 2026 Direct
Patrick W. Maloney CME Common Stock Class A Award 15.7% 645 4,743 25 Jun 2026 Direct
Deborah J. Lucas CME Common Stock Class A Award 16.6% 645 4,533 25 Jun 2026 Direct
Phyllis M. Lockett CME Common Stock Class A Award 17.7% 645 4,285 25 Jun 2026 Direct
Daniel G. Kaye CME Common Stock Class A Award 15.4% 645 4,845 25 Jun 2026 Direct
William W. Hobert CME Common Stock Class A Award 1% 1,067 108,006 25 Jun 2026 Direct
Harold E. Ford Jr. CME Common Stock Class A Award 97.8% 1,067 2,158 25 Jun 2026 Direct
Bryan T. Durkin CME Common Stock Class A Award 1.5% 645 43,652 25 Jun 2026 Direct
Elizabeth A. Cook CME Common Stock Class A Award 3.63% 645 18,416 25 Jun 2026 by Trust
* marks a reported price that did not pass the local price check.
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