Form4.ai tracks every SEC insider trade in real time. See every MGNX insider filing with a free account — no card.
See every MGNX insider filing — free account, no card.
Free accountMACROGENICS INC (MGNX) has 5 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 1 sales totalling $129K. Most recent filing: Nov. 3, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 7, 2026 SEC filing | Bonvini Ezio Sr VP, Research & CSO | Option exercise | $41,600 | — |
| Aug 20, 2026 SEC filing | Peters Jeffrey Stuart Senior VP, GC, and Secretary | Sold | $129,086 | — |
| Aug 18, 2026 SEC filing | Bonvini Ezio Sr VP, Research & CSO | Option exercise | $208,000 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.