HEIDEN WILLIAM K
CIK 1214939
Transactions on file
6
Open-market buys
2
Win rate (buys)
100%
2 scored
Avg % since filing (buys)
+166.5%
Tickers traded
Recent activity
| Filed | Txn date | Issuer | Roles | Code | Shares | Value | % since Filing | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-11 | 2026-06-09 | ATRA Atara Biotherapeutics, Inc. | Grant | 12,000 | $0.00 | — | open → | |
| 2026-05-20 | 2026-05-18 | MGNX MACROGENICS INC | Director | Exer. | 3,750 | $0.00 | — | open → |
| 2025-05-22 | 2025-05-20 | MGNX MACROGENICS INC | Director | Exer. | 6,500 | — | — | open → |
| 2025-06-12 | 2025-06-10 | ATRA Atara Biotherapeutics, Inc. | Director | Grant | 7,828 | $0.00 | — | open → |
| 2025-08-21 | 2025-08-19 | MGNX MACROGENICS INC | Director | Buy | 50,500 | $76.8K | +163.8% | open → |
| 2025-08-21 | 2025-08-20 | MGNX MACROGENICS INC | Director | Buy | 49,500 | $73.8K | +169.1% | open → |
