CMENasdaq · Security & Commodity Brokers, Dealers, Exchanges & Services

CME GROUP INC.

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Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Oct 23 Sale GEPSMAN MARTIN J Insider

1 week

Result in5 trading days

1 month

Result in21 trading days

3 months

Result in63 trading days

6 months

Result in126 trading days

Sep 29 Buy SHEPARD WILLIAM R Insider

1 week

+2.6%S&P +1.9%

1 month

Result in3 trading days

3 months

Result in45 trading days

6 months

Result in108 trading days

Sep 15 Sale Cook Elizabeth A Insider

1 week

−2.9%S&P +2.4%

1 month

+3.8%S&P +1.9%

3 months

Result in35 trading days

6 months

Result in98 trading days

Sep 12 Sale DUFFY TERRENCE A Insider

1 week

−1.8%S&P +1.9%

1 month

−0.9%S&P +2.5%

3 months

Result in34 trading days

6 months

Result in97 trading days

Jul 21 Buy Sen. Alan Armstrong Senate

1 week

+6.5%S&P −2.4%

1 month

+8.7%S&P +2.0%

3 months

+19.0%S&P +3.2%

6 months

Result in60 trading days

Show all 35

Jul 2 Sale Rep. Gilbert Cisneros House

1 week

+4.4%S&P −0.3%

1 month

+11.9%S&P +2.7%

3 months

+12.6%S&P +2.7%

6 months

Result in48 trading days

Jun 30 Buy SHEPARD WILLIAM R Insider

1 week

+10.1%S&P −0.2%

1 month

+21.0%S&P −0.7%

3 months

+19.8%S&P +2.6%

6 months

Result in45 trading days

May 20 Sale Piell Hilda Harris Insider

1 week

−4.4%S&P +1.8%

1 month

−15.1%S&P +0.7%

3 months

−6.2%S&P +3.1%

6 months

Result in18 trading days

May 19 Sale DUFFY TERRENCE A Insider

1 week

−7.7%S&P +2.3%

1 month

−18.1%S&P +2.0%

3 months

−11.3%S&P +5.1%

6 months

Result in17 trading days

Mar 31 Buy SHEPARD WILLIAM R Insider

1 week

+2.5%S&P +3.9%

1 month

−2.5%S&P +10.5%

3 months

−21.4%S&P +15.0%

6 months

−10.4%S&P +17.9%

Mar 19 Sale Marcus Jonathan L Insider

1 week

−4.2%S&P −2.0%

1 month

−7.5%S&P +7.7%

3 months

−20.3%S&P +13.8%

6 months

−10.3%S&P +16.3%

Mar 13 Sale Vroman Ken Insider

1 week

−1.3%S&P −1.8%

1 month

−4.6%S&P +5.1%

3 months

−13.0%S&P +12.3%

6 months

−9.0%S&P +15.5%

Mar 10 Sale Cook Elizabeth A Insider

1 week

+2.3%S&P −0.9%

1 month

−2.4%S&P +0.7%

3 months

−16.0%S&P +9.1%

6 months

−9.4%S&P +13.2%

Feb 24 Sale Durkin Bryan T Insider

1 week

+1.9%S&P −1.0%

1 month

−5.6%S&P −4.2%

3 months

−9.3%S&P +9.5%

6 months

−10.5%S&P +12.0%

Feb 20 Sale GEPSMAN MARTIN J Insider

1 week

+3.7%S&P −0.5%

1 month

+1.9%S&P −4.7%

3 months

−3.8%S&P +8.0%

6 months

−8.1%S&P +11.7%

Feb 13 Buy Rep. Gilbert Cisneros House

1 week

+5.2%S&P +0.7%

1 month

+4.3%S&P −3.1%

3 months

+3.1%S&P +8.5%

6 months

−7.8%S&P +13.0%

Feb 9 Sale Suskind Dennis Insider

1 week

−1.3%S&P −1.6%

1 month

+1.1%S&P −2.5%

3 months

−5.8%S&P +6.8%

6 months

−13.1%S&P +11.6%

Jan 15 Sale Rep. Julie Johnson House

1 week

+1.6%S&P +0.2%

1 month

+8.2%S&P −0.8%

3 months

+5.3%S&P +2.8%

6 months

−12.6%S&P +8.8%

Jan 2 Buy SHEPARD WILLIAM R Insider

1 week

−2.7%S&P +1.6%

1 month

+8.7%S&P +0.9%

3 months

+17.2%S&P −3.3%

6 months

−8.1%S&P +10.0%

Dec 16, 2025 Sale DUFFY TERRENCE A Insider

1 week

+0.9%S&P +1.6%

1 month

+2.4%S&P +2.2%

3 months

+16.6%S&P −2.5%

6 months

−7.1%S&P +10.9%

Dec 11, 2025 Sale Rep. Julie Johnson House

1 week

−1.6%S&P +0.1%

1 month

+0.6%S&P +1.6%

3 months

+17.3%S&P −1.3%

6 months

−1.5%S&P +10.7%

Nov 22, 2025 Sale Sammann Derek Insider

1 week

+0.7%S&P +1.9%

1 month

+0.7%S&P +3.5%

3 months

+15.3%S&P +3.4%

6 months

+3.5%S&P +13.5%

Nov 4, 2025 Sale Ford Harold Eugene Jr. Insider

1 week

+4.1%S&P +1.1%

1 month

+2.0%S&P +1.4%

3 months

+11.5%S&P +0.6%

6 months

+10.2%S&P +9.0%

Oct 10, 2025 Sale Rep. Valerie Hoyle House

1 week

−1.3%S&P +1.2%

1 month

+2.8%S&P +3.0%

3 months

−0.6%S&P +4.9%

6 months

+12.6%S&P +6.2%

Sep 27, 2025 Buy SHEPARD WILLIAM R Insider

1 week

−3.7%S&P +1.2%

1 month

−2.2%S&P +3.5%

3 months

+2.7%S&P +3.9%

6 months

+11.6%S&P −1.5%

Sep 19, 2025 Sale Marcus Jonathan L Insider

1 week

+3.3%S&P −0.3%

1 month

+2.3%S&P +1.1%

3 months

+2.2%S&P +1.9%

6 months

+20.6%S&P −0.7%

Sep 17, 2025 Sale Marcus Jonathan L Insider

1 week

+0.8%S&P +0.6%

1 month

0.0%S&P +0.5%

3 months

+4.5%S&P +3.3%

6 months

+21.8%S&P +0.7%

Sep 17, 2025 Sale McCourt Timothy Francis Insider

1 week

+0.8%S&P +0.6%

1 month

0.0%S&P +0.5%

3 months

+4.5%S&P +3.3%

6 months

+21.8%S&P +0.7%

Sep 12, 2025 Buy Rep. Valerie Hoyle House

1 week

+0.9%S&P +1.2%

1 month

+3.2%S&P +0.5%

3 months

+6.2%S&P +3.4%

6 months

+24.6%S&P +2.1%

Sep 11, 2025 Buy Rep. Julie Johnson House

1 week

−0.3%S&P +1.2%

1 month

+3.4%S&P +1.1%

3 months

+3.9%S&P +5.1%

6 months

+23.1%S&P +2.3%

Sep 11, 2025 Sale Rep. Julie Johnson House

1 week

−0.3%S&P +1.2%

1 month

+3.4%S&P +1.1%

3 months

+3.9%S&P +5.1%

6 months

+23.1%S&P +2.3%

Aug 14, 2025 Buy Rep. Julie Johnson House

1 week

−1.6%S&P +0.3%

1 month

−4.7%S&P +2.6%

3 months

+4.0%S&P +4.7%

6 months

+11.7%S&P +6.7%

Jun 22, 2025 Sale Rep. Jefferson Shreve House

1 week

+1.1%S&P +2.9%

1 month

+1.4%S&P +5.7%

3 months

−3.8%S&P +11.4%

6 months

−0.4%S&P +14.0%

May 8, 2025 Buy Rep. Rob Bresnahan House

1 week

−2.8%S&P +5.3%

1 month

−6.0%S&P +6.9%

3 months

+1.0%S&P +13.0%

6 months

−1.8%S&P +19.6%

Apr 11, 2025 Buy Rep. Carol Devine Miller House

1 week

+0.7%S&P −2.2%

1 month

+1.0%S&P +9.0%

3 months

+5.7%S&P +16.1%

6 months

+2.3%S&P +23.5%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for CME

107 held · newest 5107 held · newest 2

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See all 107 filings for CME

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Signal history

Sep 28 Insider

SHEPARD WILLIAM R (director) bought $79K

A week later+2.6%S&P +1.9%

Result in 3 trading days

Result in 45 trading days

Result in 108 trading days

Stakes

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 7.5%, 27,044,709 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Feb 27, 2026 Schedule 13G, amended

The Vanguard Group: 10.1%, 36,248,559 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

$400KQ4 2025

$430KQ1 2026

$620KQ2 2026

$460KQ3 2026

Down 26 percent from Q2 2026. Reported by the company to the Senate each quarter.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 21, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.