Profile
| Role | Director |
|---|---|
| Notability | 20/100 |
Board memberships
- CME Group Inc.
Updated Jul 16, 2026
SHEPARD WILLIAM R has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $725K. Historical track record: 3/5 stars across 8 tracked purchases.
| Role | Director |
|---|---|
| Notability | 20/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★☆☆ (3/5) |
|---|---|
| Total purchases tracked | 8 |
| Purchases with forward-return data | 8 |
| 30-day win rate | 7500% |
| 90-day win rate | 5000% |
| Avg 5-day return | +10.21% |
| Avg 30-day return | -12.80% |
| Avg 90-day return | -280.29% |
| Best 30-day return | +238.80% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-29 | CME | CME GROUP INC. | P — Open-market purchase | 325 | $230.57 | $75K |
| 2026-06-29 | CME | CME GROUP INC. | P — Open-market purchase | 14 | $230.57 | $3K |
| 2026-06-29 | CME | CME GROUP INC. | A — Grant or award | 422 | $225.00 | $95K |
| 2026-06-29 | CME | CME GROUP INC. | A — Grant or award | 645 | $225.00 | $145K |
| 2026-03-30 | CME | CME GROUP INC. | P — Open-market purchase | 62 | $297.38 | $18K |
| 2026-03-30 | CME | CME GROUP INC. | P — Open-market purchase | 1.4K | $297.38 | $419K |
| 2025-09-25 | CME | CME GROUP INC. | P — Open-market purchase | 12 | $265.22 | $3K |
| 2025-09-25 | CME | CME GROUP INC. | P — Open-market purchase | 262 | $265.19 | $70K |
| 2025-06-25 | CME | CME GROUP INC. | P — Open-market purchase | 11 | $270.53 | $3K |
| 2025-06-25 | CME | CME GROUP INC. | P — Open-market purchase | 256 | $270.53 | $69K |
| 2025-06-25 | CME | CME GROUP INC. | A — Grant or award | 879 | $273.03 | $240K |
| 2024-12-30 | CME | CME GROUP INC. | P — Open-market purchase | 264 | $232.89 | $62K |
| 2024-12-30 | CME | CME GROUP INC. | P — Open-market purchase | 12 | $232.89 | $3K |
SHEPARD WILLIAM R is a corporate insider — currently tracked as Director of CME GROUP INC. (CME). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 10 open-market purchases ($725K) and 0 open-market sales () across all tracked filings.
Across 8 tracked purchases, SHEPARD WILLIAM R averaged -12.8% avg 30-day return with a 7500% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live SHEPARD WILLIAM R profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.