CME GROUP INC. (CME) insider trading
CME GROUP INC. insiders have made 1 open-market purchase worth $79k since Sep 28, 2026, by 1 insider. The latest: William R. Shepard (Director) bought $79k, filed Sep 28, 2026, scored 26 out of 100.
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Insider purchases
| Filed | Insider | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 28 Form 4 (opens sec.gov) |
William R. ShepardDirectorDirector | +0% stake | 26 | $79k 293 at $268.76 |
+2.6% | +12.6% |
Track record (hypothetical): a week after the filing, these buys averaged +2.6% (100% up, 1 measured); a month after, +12.6% (100% up, 1 measured).
Insider sales
2 open-market sales on record
| Filed | Insider | Sold |
|---|---|---|
| Oct 27 Form 4 (opens sec.gov) |
Sunil CutinhoChief Information Officer | $1.5M 5,000 at $298.70 · 20% of holdings |
| Oct 22 Form 4 (opens sec.gov) |
Martin J. GepsmanDirector | $121k 400 at $302.50 · 2% of holdings |
Most insider sales are planned in advance or made for personal reasons, so a sale says less than a buy.
CME trades reported by members of Congress
| Reported | Member | Trade | Amount |
|---|---|---|---|
| Jul 21 |  Alan ArmstrongR-OK · Senate116 days after the trade | Buy | $1K–$15K |
Members of Congress report trades up to 45 days later, in dollar ranges. Every member's trades.
Planned insider sales of CME (Form 144)
| Filed | Insider | To sell |
|---|---|---|
| Oct 27 Form 144 | SUNIL CUTINHOOfficer · no trading plan named | $1.5M 5,000 shares from Oct 27 |
| Oct 22 Form 144 | MARTIN J GEPSMANDirector · no trading plan named | $121k 400 shares from Oct 22 |
A Form 144 is filed before an insider sells restricted or control shares; the Form 4 reports the sale once made.
Insiders who bought CME
- William R. Shepard Director
Questions
Are insiders buying CME stock?
Yes. In the last 90 days, 1 open-market purchase was filed, worth $79k, against $1.6M of open-market sales.
Who bought CME stock most recently?
William R. Shepard, Director, bought 293 shares for $79k (Form 4 (opens sec.gov), filed Sep 28, 2026).
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Data as of Oct 27, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer