Macrogenics Inc. (MGNX) Insider Trading
Directors, officers and holders of more than 10% of MGNX report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 226 transactions on file: 0 with code P, 1 with code S and 49 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | Kuriakose Emil | Director | A Award | 7,500 | Not measured | Not measured |
| Oct 30, 2026 | VASCONCELLES MICHAEL | Director | A Award | 7,500 | Not measured | Not measured |
| Oct 30, 2026 | Kuriakose Emil | Director | A Award | 44,000 | Not measured | Not measured |
| Oct 30, 2026 | VASCONCELLES MICHAEL | Director | A Award | 44,000 | Not measured | Not measured |
| Oct 6, 2026 | Bonvini Ezio | Sr VP, Research & CSO | M Exercise | 8,000 | $2.60 | $20,800 |
| Oct 6, 2026 | Bonvini Ezio | Sr VP, Research & CSO | M Exercise | 8,000 | $2.60 | $20,800 |
| Aug 19, 2026 | Peters Jeffrey Stuart | Senior VP, GC, and Secretary | S Sale | 31,105 | $4.15 | $129,086 |
| Aug 17, 2026 | Bonvini Ezio | Sr VP, Research & CSO | M Exercise | 40,000 | $2.60 | $104,000 |
| Aug 17, 2026 | Bonvini Ezio | Sr VP, Research & CSO | M Exercise | 40,000 | $2.60 | $104,000 |
| May 19, 2026 | HEIDEN WILLIAM K | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | Koenig Scott | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | HEIDEN WILLIAM K | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | HURWITZ EDWARD | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | HURWITZ EDWARD | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | Ferrante Karen Jean | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | Chhabra Meenu | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | Jackson Scott Thomas | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | STUMP DAVID C | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | Liu Margaret | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | Koenig Scott | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | O'Brien Federica F. | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | Chhabra Meenu | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | STUMP DAVID C | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | Liu Margaret | Director | A Award | 3,750 | Not measured | Not measured |
| May 19, 2026 | Ferrante Karen Jean | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | Jackson Scott Thomas | Director | A Award | 22,000 | Not measured | Not measured |
| May 19, 2026 | O'Brien Federica F. | Director | A Award | 3,750 | Not measured | Not measured |
| May 18, 2026 | Jackson Scott Thomas | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | SIEGEL JAY PHILIP | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | HEIDEN WILLIAM K | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | Chhabra Meenu | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | O'Brien Federica F. | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | Ferrante Karen Jean | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | Liu Margaret | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | SIEGEL JAY PHILIP | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | HURWITZ EDWARD | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | Jackson Scott Thomas | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | STUMP DAVID C | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | STUMP DAVID C | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | Chhabra Meenu | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | O'Brien Federica F. | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | Ferrante Karen Jean | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | HURWITZ EDWARD | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | Liu Margaret | Director | M Exercise | 3,750 | Not measured | Not measured |
| May 18, 2026 | HEIDEN WILLIAM K | Director | M Exercise | 3,750 | Not measured | Not measured |
| Feb 15, 2026 | Peters Jeffrey Stuart | Senior VP, GC, and Secretary | F Tax Payment | 5,147 | $1.71 | $8,801 |
| Feb 15, 2026 | Risser Eric Blasius | President and CEO | F Tax Payment | 6,433 | $1.71 | $11,000 |
| Feb 15, 2026 | Risser Eric Blasius | President and CEO | M Exercise | 16,665 | Not measured | Not measured |
| Feb 15, 2026 | Karrels James | SVP and CFO | M Exercise | 14,999 | Not measured | Not measured |
| Feb 15, 2026 | Smith Beth Ann | VP, Controller & Treasurer | F Tax Payment | 423 | $1.71 | $723 |
The full Form 4 history is on the MGNX company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.