Over the last 12 months, CME Group insiders reported 8 buys totaling $661K and 12 sales totaling $13.9M across SEC Form 4 filings. 15% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jun 25, 2026 | SHEPARD WILLIAM RD | ▲ Buy | 324.782 | $230.57 | $75K | +0.1% | indirect |
| Jun 25, 2026 | SHEPARD WILLIAM RD | ▲ Buy | 14.318 | $230.57 | $3K | +0.4% | — |
| Mar 26, 2026 | SHEPARD WILLIAM RD | ▲ Buy | 62.06 | $297.38 | $18K | +2.5% | — |
| Mar 26, 2026 | SHEPARD WILLIAM RD | ▲ Buy | 1,407.78 | $297.38 | $419K | +0.5% | indirect |
| Mar 17, 2026 | Marcus Jonathan LSr MD General Counsel · O | ▼ Sale | 3,291 | $333.37 | $1.1M | -31.4% | plan |
| Mar 12, 2026 | Vroman KenChief Transformation Officer · O | ▼ Sale | 5,160 | $309 | $1.6M | -25.7% | — |
| Mar 6, 2026 | Cook Elizabeth AD | ▼ Sale | 1,000 | $320 | $320K | -5.3% | indirect |
| Feb 23, 2026 | Durkin Bryan TD | ▼ Sale | 4,200 | $309.65 | $1.3M | -8.9% | — |
| Feb 20, 2026 | GEPSMAN MARTIN JD | ▼ Sale | 300 | $305.9 | $92K | -1.2% | — |
| Feb 6, 2026 | Suskind DennisD | ▼ Sale | 748 | $300 | $224K | -21.7% | — |
| Dec 30, 2025 | SHEPARD WILLIAM RD | ▲ Buy | 251.21 | $278.37 | $70K | +0.1% | indirect |
| Dec 30, 2025 | SHEPARD WILLIAM RD | ▲ Buy | 11.06 | $278.37 | $3K | +0.4% | — |
| Dec 11, 2025 | DUFFY TERRENCE AChairman and CEO · O·D | ▼ Sale | 25,000 | $269.55 | $6.7M | -27.5% | 2 tranches |
| Nov 20, 2025 | Sammann DerekSr MD Gl Hd Commodities Mkts · O | ▼ Sale | 7,200 | $275.67 | $2.0M | -50.6% | 2 tranches · indirect |
| Nov 3, 2025 | Ford Harold Eugene Jr.D | ▼ Sale | 1,000 | $263.53 | $264K | -47.8% | — |
| Sep 25, 2025 | SHEPARD WILLIAM RD | ▲ Buy | 11.57 | $265.22 | $3K | +0.5% | — |
| Sep 25, 2025 | SHEPARD WILLIAM RD | ▲ Buy | 262.465 | $265.19 | $70K | +0.1% | indirect |
| Sep 18, 2025 | Marcus Jonathan LSr MD General Counsel · O | ▼ Sale | 392 | $262 | $103K | -4.8% | plan |
| Sep 16, 2025 | Marcus Jonathan LSr MD General Counsel · O | ▼ Sale | 376 | $258.96 | $97K | -4.2% | plan |
| Sep 16, 2025 | McCourt Timothy FrancisSr MD Global Head Equity & FX · O | ▼ Sale | 379 | $259.83 | $98K | -3.8% | — |
| Aug 26, 2025 | Cutinho SunilChief Information Officer · O | ▼ Sale | 11,896 | $271.47 | $3.2M | -40.6% | 2 tranches |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? CME Group filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $CME feed.