SIEGEL JAY PHILIP (CIK 1722857) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-20). Recent activity: Buy MGNX (3,750 shares), Buy MGNX (6,500 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-20 | MACROGENICS INC (MGNX) | Director | Buy | 3,750 | $0 |
| 2025-05-22 | MACROGENICS INC (MGNX) | Director | Buy | 6,500 | $0 |
Source: SEC Form 4 filings · as of 2026-05-20