Insider · SEC Form 4 filer

William Shepard

Past buys: 4 of 10 beat

Companies

Where they file as an insider

CME Group (CME) Director Latest filing Sep 25, 2026

Track record

Did their buys beat the typical stock?

Open-market buys29
Quarters checked 6 months later10
Beat the typical stock 4 of 10
Quarters too new to check2

4 of 10 checked quarters beat the typical stock. A past record is data, not a forecast.

CME Group (CME) Bought Sep 25, 2026 · $78.6K · 293 shares Too new Too new. Its 6-month check uses prices as of Mar 31, 2027.
CME Group (CME) Bought Jun 25, 2026 · $78.2K · 339 shares Too new Too new. Its 6-month check uses prices as of Dec 31, 2026.
CME Group (CME) Bought Mar 26, 2026 · $437K · 1,470 shares Behind typical Mar 31, 2026 $295.35 → Sep 30, 2026 $261.98 · −11.3% (typical stock +1.7%)
CME Group (CME) Bought Dec 30, 2025 · $73K · 262 shares Behind typical Dec 31, 2025 $273.08 → Jun 30, 2026 $220.83 · −19.1% (typical stock +4.7%)
CME Group (CME) Bought Sep 25, 2025 · $72.7K · 274 shares Beat typical Sep 30, 2025 $270.19 → Mar 31, 2026 $295.35 · +9.3% (typical stock −3.4%)
CME Group (CME) Bought Jun 25, 2025 · $72.3K · 267 shares Behind typical Jun 30, 2025 $275.62 → Dec 31, 2025 $273.08 · −0.9% (typical stock +2.1%)
CME Group (CME) Bought Jan 16–Mar 26, 2025 · $398K · 1,703 shares Behind typical Mar 31, 2025 $265.29 → Sep 30, 2025 $270.19 · +1.8% (typical stock +7.3%)
CME Group (CME) Bought Dec 27, 2024 · $64.3K · 276 shares Beat typical Dec 31, 2024 $232.23 → Jun 30, 2025 $275.62 · +18.7% (typical stock −3.4%)
CME Group (CME) Bought Sep 25, 2024 · $63.9K · 293 shares Beat typical Sep 30, 2024 $220.65 → Mar 31, 2025 $265.29 · +20.2% (typical stock −7.5%)
CME Group (CME) Bought Jun 25, 2024 · $63.6K · 326 shares Beat typical Jun 30, 2024 $196.60 → Dec 31, 2024 $232.23 · +18.1% (typical stock +3.9%)
CME Group (CME) Bought Jan 18–Mar 26, 2024 · $345K · 1,684 shares Behind typical Mar 31, 2024 $215.29 → Sep 30, 2024 $220.65 · +2.5% (typical stock +3.2%)
CME Group (CME) Bought Dec 28, 2023 · $58.6K · 278 shares Behind typical Dec 31, 2023 $210.60 → Jun 30, 2024 $196.60 · −6.6% (typical stock −1.2%)
CME Group (CME) Bought Sep 27, 2023 · $58.3K · 292 shares Not counted Not counted. We have no fund price for this stock on both Sep 30, 2023 and Mar 31, 2024.

Each row is one stock in one quarter, however many buys it took. We take the stock's price at the end of that quarter and again 6 months later, and compare it with the typical stock over the same dates. Prices are quarter-end values from funds' 13F reports (the middle value across 3 or more funds), through Sep 30, 2026. Moves past 3 times up or down, mostly stock splits, are left out. How we tested this.

Past results. This is data, not advice.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

This is data, not investment advice. About StockToast · Your watchlist