William R Shepard bought $73k of CME
director at CME GROUP INC.. 262 shares at an average of $278.37, traded Dec 30, 2025, filed Jan 2, 2026.
Score components
- +15RoleDirector
- +8Trade size$73k at market
- +3Relative to holdingsHoldings up 11%
- 0Price contextNear the top of the 52-week range
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001628280-26-000085, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 30, 2025 | POpen-market purchase Common Stock Class A | +11 | $278.37 | $3,079 | 2,477 | Jan 2, 2026 |
| Dec 30, 2025 | POpen-market purchase Common Stock Class Aindirect: by Trust | +251 | $278.37 | $70k | 258,710 | Jan 2, 2026 |
Related signals
Other insiders at CME GROUP INC. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 19Weak | CMEbuy CME GROUP INC. | William R Shepard director | $79k 293 shares | +0% | |
| 34Weak | CME GROUP INC. | Elizabeth A Cook director | $140k 500 shares | -3% | |
| 68Notable | CME GROUP INC. | Terrence A Duffy Chairman and CEO | $4.1M 15,000 shares | -27% | |
| 32Weak | CMEbuy CME GROUP INC. | William R Shepard director | $437k 1,470 shares | +1% | |
| 45Moderate | CME GROUP INC. | Jonathan L Marcus Sr MD General Counsel | $1.0M 3,291 shares | -31% | |
| 45Moderate | CME GROUP INC. | Jonathan L Marcus Sr MD General Counsel | $1.1M 3,291 shares | -31% | |
| 65Notable | CME GROUP INC. | Ken Vroman Chief Transformation Officer | $1.6M 5,160 shares | -26% | |
| 44Moderate | CME GROUP INC. | Elizabeth A Cook director | $320k 1,000 shares | -5% | |
| 55Moderate | CME GROUP INC. | Bryan T Durkin director | $1.3M 4,200 shares | -9% | |
| 39Weak | CME GROUP INC. | Martin J Gepsman director | $92k 300 shares | -1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.