MACROGENICS INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| HEIDEN WILLIAM K | — | Purchase | 50,500 | $1.52 | $76,760 | 61,500 | Aug 20, 2025 |
| Koenig Scott | — | Option Exercise | 31,664 | — | — | 830,244 | Aug 13, 2025 |
| O'Brien Federica F. | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| Jackson Scott Thomas | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| HEIDEN WILLIAM K | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| STUMP DAVID C | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| Ferrante Karen Jean | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| Liu Margaret | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| HURWITZ EDWARD | — | Option Exercise | 6,500 | — | — | 44,074 | May 20, 2025 |
| Chhabra Meenu | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| SIEGEL JAY PHILIP | — | Option Exercise | 6,500 | — | — | 11,000 | May 20, 2025 |
| Bonvini Ezio | Sr VP, Research & CSO | Option Exercise | 16,665 | — | — | 124,414 | Feb 15, 2025 |
| Karrels James | SVP, CFO and Secretary | Option Exercise | 14,998 | — | — | 192,591 | Feb 15, 2025 |
| Koenig Scott | President and CEO | Option Exercise | 42,329 | — | — | 777,415 | Feb 15, 2025 |
| Peters Jeffrey Stuart | Senior VP and General Counsel | Option Exercise | 13,332 | — | — | 18,858 | Feb 15, 2025 |
| Risser Eric Blasius | Chief Operating Officer | Option Exercise | 16,665 | — | — | 62,422 | Feb 15, 2025 |
| Smith Beth Ann | VP, Controller & Treasurer | Option Exercise | 1,095 | — | — | 9,955 | Feb 15, 2025 |
| Spitznagel Thomas | Sr VP, Technical Ops | Option Exercise | 13,332 | — | — | 26,922 | Feb 15, 2025 |
| Eck Stephen L. | Chief Medical Officer | Tax Withholding | 4,942 | $2.56 | $12,652 | 29,377 | Feb 15, 2025 |
| Eck Stephen L. | Chief Medical Officer | Option Exercise | 11,168 | — | — | 20,966 | Feb 8, 2025 |
| Bonvini Ezio | Sr VP, Research & CSO | Tax Withholding | 4,311 | $2.60 | $11,209 | 107,749 | Feb 8, 2025 |
| Risser Eric Blasius | Chief Operating Officer | Tax Withholding | 4,311 | $2.60 | $11,209 | 45,757 | Feb 8, 2025 |
| Karrels James | SVP, CFO and Secretary | Option Exercise | 10,002 | — | — | 181,454 | Feb 8, 2025 |
| Smith Beth Ann | VP, Controller & Treasurer | Option Exercise | 1,583 | — | — | 9,472 | Feb 8, 2025 |
| Koenig Scott | President and CEO | Award / Grant | 31,673 | — | — | 735,086 | Feb 8, 2025 |
| Spitznagel Thomas | Sr VP, Technical Ops | Option Exercise | 9,001 | — | — | 17,317 | Feb 8, 2025 |
| Peters Jeffrey Stuart | Senior VP and General Counsel | Option Exercise | 9,001 | — | — | 9,001 | Feb 8, 2025 |
| Koenig Scott | President and CEO | Gift | 53,265 | — | — | 427,480 | Oct 7, 2024 |
| Koenig Scott | President and CEO | Gift | 374,215 | — | — | 703,413 | Sep 23, 2024 |
| SIEGEL JAY PHILIP | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| HEIDEN WILLIAM K | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| Jackson Scott Thomas | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| STUMP DAVID C | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| O'Brien Federica F. | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| Liu Margaret | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| Chhabra Meenu | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| Ferrante Karen Jean | — | Option Exercise | 4,500 | — | — | 4,500 | May 20, 2024 |
| HURWITZ EDWARD | — | Option Exercise | 4,500 | — | — | 37,574 | May 20, 2024 |
| Peters Jeffrey Stuart | Senior VP and General Counsel | Sale | 3,165 | $18.22 | $57,666 | — | Apr 4, 2024 |
| Peters Jeffrey Stuart | Senior VP and General Counsel | Option Exercise | 10,875 | $11.50 | $125,063 | 19,770 | Mar 6, 2024 |
| Risser Eric Blasius | Chief Operating Officer | Sale | 26,159 | $19.63 | $513,501 | 38,900 | Mar 4, 2024 |
| Spitznagel Thomas | Sr VP, Technical Ops | Sale | 10,000 | $20.00 | $200,000 | 8,316 | Mar 4, 2024 |
| Karrels James | SVP, CFO and Secretary | Sale | 30,000 | $20.50 | $615,000 | 171,452 | Mar 4, 2024 |
| Peters Jeffrey Stuart | Senior VP and General Counsel | Sale | 16,124 | $17.22 | $277,655 | 8,895 | Feb 26, 2024 |
| Peters Jeffrey Stuart | Senior VP and General Counsel | Tax Withholding | 10,126 | $17.11 | $173,256 | 25,019 | Feb 22, 2024 |
| Bonvini Ezio | Sr VP, Research & CSO | Option Exercise | 28,125 | — | — | 110,258 | Feb 22, 2024 |
| Eck Stephen L. | Chief Medical Officer | Option Exercise | 16,670 | — | — | 16,670 | Feb 15, 2024 |
| Peters Jeffrey Stuart | Senior VP and General Counsel | Tax Withholding | 4,441 | $17.40 | $77,273 | 8,895 | Feb 15, 2024 |
| Koenig Scott | President and CEO | Tax Withholding | 14,349 | $17.40 | $249,673 | 1,077,628 | Feb 15, 2024 |
| Cilinski Lynn | VP, Controller and Treasurer | Tax Withholding | 2,378 | $17.40 | $41,377 | 6,213 | Feb 15, 2024 |