MGNX MACROGENICS INC
Nasdaq · SEC CIK 1125345 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $129.1K 1 sales by 1 insiders
- Filings on record
- 164 since 2021-07-20, latest 2026-08-20 18:19
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Peters Jeffrey Stuart | GC, Senior VP, Sec | — | $129.1K |
| Smith Beth Ann | VP, Ctrl, Treas | — | — |
| SIEGEL JAY PHILIP | Dir | — | — |
| Spitznagel Thomas | SVP, Technical Ops | — | — |
| Ferrante Karen Jean | Dir | — | — |
| Bonvini Ezio | SVP, CSO, Research | — | — |
| Risser Eric Blasius | Pres, CEO, Dir | — | — |
| Koenig Scott | Dir | — | — |
| Karrels James | SVP, CFO | — | — |
| Jackson Scott Thomas | Dir | — | — |
Transactions 153
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-08-20 18:19 | 2026-08-19 | MGNX | Peters Jeffrey Stuart | GC, Senior VP, Sec | S - Sale | $4.15 | -31.1K | 0 | -100% | -$129.1K |
| D | 2026-08-18 16:19 | 2026-08-17 | MGNX | Bonvini Ezio | SVP, CSO, Research | M - OptEx | $2.60 | +40.0K | 185.8K | +27% | +$104.0K |
| D | 2026-05-20 16:14 | 2026-05-18 | MGNX | O'Brien Federica F. | Dir | M - OptEx | — | +3,750 | 14.8K | +34% | — |
| D | 2026-05-20 16:14 | 2026-05-18 | MGNX | Jackson Scott Thomas | Dir | M - OptEx | — | +3,750 | 14.8K | +34% | — |
| D | 2026-05-20 16:14 | 2026-05-18 | MGNX | HEIDEN WILLIAM K | Dir | M - OptEx | — | +3,750 | 114.8K | +3% | — |
| D | 2026-05-20 16:13 | 2026-05-18 | MGNX | SIEGEL JAY PHILIP | Dir | M - OptEx | — | +3,750 | 14.8K | +34% | — |
| D | 2026-05-20 16:13 | 2026-05-18 | MGNX | Liu Margaret | Dir | M - OptEx | — | +3,750 | 14.8K | +34% | — |
| D | 2026-05-20 16:13 | 2026-05-18 | MGNX | Chhabra Meenu | Dir | M - OptEx | — | +3,750 | 14.8K | +34% | — |
| D | 2026-05-20 16:13 | 2026-05-18 | MGNX | HURWITZ EDWARD | Dir | M - OptEx | — | +3,750 | 47.8K | +9% | — |
| D | 2026-05-20 16:13 | 2026-05-18 | MGNX | STUMP DAVID C | Dir | M - OptEx | — | +3,750 | 14.8K | +34% | — |
| D | 2026-05-20 16:13 | 2026-05-18 | MGNX | Ferrante Karen Jean | Dir | M - OptEx | — | +3,750 | 14.8K | +34% | — |
| D | 2026-02-17 | 2026-02-15 | MGNX | Peters Jeffrey Stuart | GC, Senior VP, Sec | M - OptEx | — | +13.3K | 36.3K | +58% | — |
| D | 2026-02-17 | 2026-02-15 | MGNX | Peters Jeffrey Stuart | GC, Senior VP, Sec | F - Tax | $1.71 | -5,147 | 31.1K | -14% | -$8,801 |
| D | 2026-02-17 | 2026-02-15 | MGNX | Smith Beth Ann | VP, Ctrl, Treas | F - Tax | $1.71 | -423 | 12.8K | -3% | -$723.33 |
| D | 2026-02-17 | 2026-02-15 | MGNX | Smith Beth Ann | VP, Ctrl, Treas | M - OptEx | — | +1,095 | 13.2K | +9% | — |
| D | 2026-02-17 | 2026-02-15 | MGNX | Karrels James | SVP, CFO | M - OptEx | — | +15.0K | 211.8K | +8% | — |
| D | 2026-02-17 | 2026-02-15 | MGNX | Karrels James | SVP, CFO | F - Tax | $1.71 | -5,790 | 206.0K | -3% | -$9,901 |
| D | 2026-02-17 | 2026-02-15 | MGNX | Risser Eric Blasius | Pres, CEO, Dir | M - OptEx | — | +16.7K | 83.6K | +25% | — |
| D | 2026-02-17 | 2026-02-15 | MGNX | Risser Eric Blasius | Pres, CEO, Dir | F - Tax | $1.71 | -6,433 | 77.2K | -8% | -$11.0K |
| D | 2026-02-17 | 2026-02-15 | MGNX | Koenig Scott | Dir | M - OptEx | $0.00 | +21.2K | 867.2K | +3% | $0 |
| D | 2026-02-17 | 2026-02-15 | MGNX | Bonvini Ezio | SVP, CSO, Research | M - OptEx | — | +16.7K | 152.2K | +12% | — |
| D | 2026-02-17 | 2026-02-15 | MGNX | Bonvini Ezio | SVP, CSO, Research | F - Tax | $1.71 | -6,433 | 145.8K | -4% | -$11.0K |
| D | 2026-02-17 | 2026-02-15 | MGNX | Spitznagel Thomas | SVP, Technical Ops | M - OptEx | — | +13.3K | 44.1K | +43% | — |
| D | 2026-02-17 | 2026-02-15 | MGNX | Spitznagel Thomas | SVP, Technical Ops | F - Tax | $1.71 | -5,520 | 38.5K | -13% | -$9,439 |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Karrels James | SVP, CFO | M - OptEx | — | +16.3K | 193.1K | +9% | — |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Karrels James | SVP, CFO | F - Tax | $1.81 | -6,306 | 196.8K | -3% | -$11.4K |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Peters Jeffrey Stuart | GC, Senior VP, Sec | F - Tax | $1.81 | -5,791 | 22.9K | -20% | -$10.5K |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Peters Jeffrey Stuart | GC, Senior VP, Sec | M - OptEx | — | +15.0K | 26.4K | +132% | — |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Bonvini Ezio | SVP, CSO, Research | M - OptEx | — | +18.2K | 131.4K | +16% | — |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Bonvini Ezio | SVP, CSO, Research | F - Tax | $1.81 | -7,014 | 135.6K | -5% | -$12.7K |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Smith Beth Ann | VP, Ctrl, Treas | F - Tax | $1.81 | -1,623 | 11.1K | -13% | -$2,938 |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Smith Beth Ann | VP, Ctrl, Treas | M - OptEx | — | +4,200 | 12.7K | +49% | — |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Spitznagel Thomas | SVP, Technical Ops | M - OptEx | — | +15.0K | 33.9K | +79% | — |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Spitznagel Thomas | SVP, Technical Ops | F - Tax | $1.81 | -5,671 | 24.9K | -19% | -$10.3K |
| D | 2026-02-10 | 2026-02-08 | MGNX | Koenig Scott | Dir | M - OptEx | — | +15.8K | 846.1K | +2% | — |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Risser Eric Blasius | Pres, CEO, Dir | M - OptEx | — | +17.8K | 71.2K | +33% | — |
| DM | 2026-02-10 | 2026-02-07+ | MGNX | Risser Eric Blasius | Pres, CEO, Dir | F - Tax | $1.81 | -6,886 | 60.1K | -10% | -$12.5K |
| M | 2025-08-21 | 2025-08-19+ | MGNX | HEIDEN WILLIAM K | Dir | P - Purchase | $1.51 | +100.0K | 61.5K | New | +$150.5K |
| DM | 2025-08-15 | 2025-08-13 | MGNX | Koenig Scott | Dir | M - OptEx | $0.00 | +52.8K | 830.2K | +7% | $0 |
| D | 2025-05-22 | 2025-05-20 | MGNX | Liu Margaret | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | HEIDEN WILLIAM K | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | Ferrante Karen Jean | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | O'Brien Federica F. | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | Chhabra Meenu | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | HURWITZ EDWARD | Dir | M - OptEx | — | +6,500 | 44.1K | +17% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | SIEGEL JAY PHILIP | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | STUMP DAVID C | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-05-22 | 2025-05-20 | MGNX | Jackson Scott Thomas | Dir | M - OptEx | — | +6,500 | 11.0K | +144% | — |
| D | 2025-02-19 | 2025-02-15 | MGNX | Bonvini Ezio | SVP, CSO, Research | M - OptEx | $0.00 | +16.7K | 124.4K | +15% | $0 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Eck Stephen L. | Chief Medical Off | M - OptEx | $0.00 | +16.7K | 34.3K | +94% | $0 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Eck Stephen L. | Chief Medical Off | F - Tax | $2.56 | -4,942 | 29.4K | -14% | -$12.7K |
| D | 2025-02-19 | 2025-02-15 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | F - Tax | $2.56 | -5,147 | 13.7K | -27% | -$13.2K |
| D | 2025-02-19 | 2025-02-15 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | M - OptEx | $0.00 | +13.3K | 18.9K | +241% | $0 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Karrels James | SVP, CFO, Sec | F - Tax | $2.56 | -5,790 | 186.8K | -3% | -$14.8K |
| D | 2025-02-19 | 2025-02-15 | MGNX | Karrels James | SVP, CFO, Sec | M - OptEx | $0.00 | +15.0K | 192.6K | +8% | $0 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Koenig Scott | Pres, CEO, Dir | M - OptEx | $0.00 | +42.3K | 777.4K | +6% | $0 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Smith Beth Ann | VP, Ctrl, Treas | S - Sale+OE | $2.56 | -423 | 9,532 | -4% | -$1,083 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Smith Beth Ann | VP, Ctrl, Treas | M - OptEx | $0.00 | +1,095 | 9,955 | +12% | $0 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Spitznagel Thomas | SVP, Technical Ops | F - Tax | $2.56 | -5,520 | 21.4K | -21% | -$14.1K |
| D | 2025-02-19 | 2025-02-15 | MGNX | Spitznagel Thomas | SVP, Technical Ops | M - OptEx | $0.00 | +13.3K | 26.9K | +98% | $0 |
| D | 2025-02-19 | 2025-02-15 | MGNX | Risser Eric Blasius | COO | F - Tax | $2.56 | -6,433 | 56.0K | -10% | -$16.5K |
| D | 2025-02-19 | 2025-02-15 | MGNX | Risser Eric Blasius | COO | M - OptEx | $0.00 | +16.7K | 62.4K | +36% | $0 |
| D | 2025-02-11 | 2025-02-08 | MGNX | Karrels James | SVP, CFO, Sec | F - Tax | $2.60 | -3,861 | 177.6K | -2% | -$10.0K |
| D | 2025-02-11 | 2025-02-08 | MGNX | Karrels James | SVP, CFO, Sec | M - OptEx | — | +10.0K | 181.5K | +6% | — |
| D | 2025-02-11 | 2025-02-08 | MGNX | Koenig Scott | Pres, CEO, Dir | A - Grant | $0.00 | +31.7K | 735.1K | +5% | $0 |
| D | 2025-02-11 | 2025-02-08 | MGNX | Eck Stephen L. | Chief Medical Off | F - Tax | $2.60 | -3,312 | 17.7K | -16% | -$8,611 |
| D | 2025-02-11 | 2025-02-08 | MGNX | Eck Stephen L. | Chief Medical Off | M - OptEx | $0.00 | +11.2K | 21.0K | +114% | $0 |
| D | 2025-02-11 | 2025-02-08 | MGNX | Smith Beth Ann | VP, Ctrl, Treas | F - Tax | $2.60 | -612 | 8,860 | -6% | -$1,591 |
| D | 2025-02-11 | 2025-02-08 | MGNX | Smith Beth Ann | VP, Ctrl, Treas | M - OptEx | — | +1,583 | 9,472 | +20% | — |
| D | 2025-02-11 | 2025-02-08 | MGNX | Risser Eric Blasius | COO | M - OptEx | — | +11.2K | 50.1K | +29% | — |
| D | 2025-02-11 | 2025-02-08 | MGNX | Risser Eric Blasius | COO | F - Tax | $2.60 | -4,311 | 45.8K | -9% | -$11.2K |
| D | 2025-02-11 | 2025-02-08 | MGNX | Spitznagel Thomas | SVP, Technical Ops | F - Tax | $2.60 | -3,727 | 13.6K | -22% | -$9,690 |
| D | 2025-02-11 | 2025-02-08 | MGNX | Spitznagel Thomas | SVP, Technical Ops | M - OptEx | — | +9,001 | 17.3K | +108% | — |
| D | 2025-02-11 | 2025-02-08 | MGNX | Bonvini Ezio | SVP, CSO, Research | M - OptEx | — | +11.2K | 112.1K | +11% | — |
| D | 2025-02-11 | 2025-02-08 | MGNX | Bonvini Ezio | SVP, CSO, Research | F - Tax | $2.60 | -4,311 | 107.7K | -4% | -$11.2K |
| D | 2025-02-11 | 2025-02-08 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | F - Tax | $2.60 | -3,475 | 5,526 | -39% | -$9,035 |
| D | 2025-02-11 | 2025-02-08 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | M - OptEx | — | +9,001 | 9,001 | New | — |
| 2024-10-09 | 2024-10-07 | MGNX | Koenig Scott | Pres, CEO, Dir | G - Gift | — | -53.3K | 0 | -100% | — | |
| I | 2024-10-09 | 2024-10-07 | MGNX | Koenig Scott | Pres, CEO, Dir | G - Gift | — | +53.3K | 427.5K | +14% | — |
| I | 2024-09-25 | 2024-09-23 | MGNX | Koenig Scott | Pres, CEO, Dir | G - Gift | — | +374.2K | 374.2K | New | — |
| 2024-09-25 | 2024-09-23 | MGNX | Koenig Scott | Pres, CEO, Dir | G - Gift | — | -374.2K | 703.4K | -35% | — | |
| D | 2024-05-22 | 2024-05-20 | MGNX | Chhabra Meenu | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | HURWITZ EDWARD | Dir | M - OptEx | $0.00 | +4,500 | 37.6K | +14% | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | STUMP DAVID C | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | Liu Margaret | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | SIEGEL JAY PHILIP | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | Jackson Scott Thomas | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | HEIDEN WILLIAM K | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | O'Brien Federica F. | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-05-22 | 2024-05-20 | MGNX | Ferrante Karen Jean | Dir | M - OptEx | $0.00 | +4,500 | 4,500 | New | $0 |
| D | 2024-04-08 | 2024-04-04 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | M - OptEx | $4.82 | +42.5K | 51.4K | +478% | +$204.8K |
| DM | 2024-04-08 | 2024-04-04 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | S - Sale+OE | $15.55 | -51.4K | 0 | -100% | -$799.1K |
| DM | 2024-03-08 | 2024-03-06 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | M - OptEx | $10.90 | +19.6K | 19.8K | +13,534% | +$213.9K |
| D | 2024-03-08 | 2024-03-06 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | S - Sale+OE | $21.50 | -19.6K | 8,895 | -69% | -$421.9K |
| 2024-03-06 | 2024-03-04 | MGNX | Karrels James | SVP, CFO, Sec | S - Sale | $20.50 | -30.0K | 171.5K | -15% | -$615.0K | |
| D | 2024-03-06 | 2024-03-04 | MGNX | Risser Eric Blasius | COO | M - OptEx | $10.15 | +15.0K | 80.1K | +23% | +$152.2K |
| DM | 2024-03-06 | 2024-03-04 | MGNX | Risser Eric Blasius | COO | S - Sale+OE | $19.76 | -41.2K | 38.9K | -51% | -$813.5K |
| D | 2024-03-06 | 2024-03-04 | MGNX | Spitznagel Thomas | SVP, Technical Ops | M - OptEx | $11.50 | +10.0K | 18.3K | +120% | +$115.0K |
| D | 2024-03-06 | 2024-03-04 | MGNX | Spitznagel Thomas | SVP, Technical Ops | S - Sale+OE | $20.00 | -10.0K | 8,316 | -55% | -$200.0K |
| 2024-02-28 | 2024-02-26 | MGNX | Peters Jeffrey Stuart | GC, Senior VP | S - Sale | $17.22 | -16.1K | 8,895 | -64% | -$277.7K |
Purchase Sale Sale after option exercise All abbreviations