MGNX
MacroGenics Inc
NASDAQ: MGNX · HEALTHCARE · BIOTECHNOLOGY
$2.38
-3.64% today
Updated 2026-10-29
Market cap
$143.32M
P/E ratio
—
P/S ratio
0.82x
EPS (TTM)
$-1.05
Dividend yield
—
52W range
$1 – $5
Volume
0.7M
MacroGenics Inc (MGNX) Insider transactions
Net insider activity
Net buying (1,721,987 shares)
Buy transactions
57
Sell transactions
43
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-19 | STUMP, DAVID C | Director | Buy | 22,000 | — | — |
| 2026-05-19 | STUMP, DAVID C | Director | Buy | 3,750 | — | — |
| 2026-05-19 | O'BRIEN, FEDERICA F. | Director | Buy | 22,000 | — | — |
| 2026-05-19 | O'BRIEN, FEDERICA F. | Director | Buy | 3,750 | — | — |
| 2026-05-19 | LIU, MARGARET | Director | Buy | 22,000 | — | — |
| 2026-05-19 | LIU, MARGARET | Director | Buy | 3,750 | — | — |
| 2026-05-19 | KOENIG, SCOTT | Director | Buy | 22,000 | — | — |
| 2026-05-19 | KOENIG, SCOTT | Director | Buy | 3,750 | — | — |
| 2026-05-19 | JACKSON, SCOTT THOMAS | Director | Buy | 22,000 | — | — |
| 2026-05-19 | JACKSON, SCOTT THOMAS | Director | Buy | 3,750 | — | — |
| 2026-05-19 | HURWITZ, EDWARD | Director | Buy | 22,000 | — | — |
| 2026-05-19 | HURWITZ, EDWARD | Director | Buy | 3,750 | — | — |
| 2026-05-19 | HEIDEN, WILLIAM K | Director | Buy | 22,000 | — | — |
| 2026-05-19 | HEIDEN, WILLIAM K | Director | Buy | 3,750 | — | — |
| 2026-05-19 | FERRANTE, KAREN JEAN | Director | Buy | 22,000 | — | — |
| 2026-05-19 | FERRANTE, KAREN JEAN | Director | Buy | 3,750 | — | — |
| 2026-05-19 | CHHABRA, MEENU | Director | Buy | 22,000 | — | — |
| 2026-05-19 | CHHABRA, MEENU | Director | Buy | 3,750 | — | — |
| 2026-05-18 | STUMP, DAVID C | Director | Sale | 3,750 | — | — |
| 2026-05-18 | STUMP, DAVID C | Director | Buy | 3,750 | — | — |
| 2026-05-18 | SIEGEL, JAY PHILIP | Director | Sale | 3,750 | — | — |
| 2026-05-18 | SIEGEL, JAY PHILIP | Director | Buy | 3,750 | — | — |
| 2026-05-18 | O'BRIEN, FEDERICA F. | Director | Sale | 3,750 | — | — |
| 2026-05-18 | O'BRIEN, FEDERICA F. | Director | Buy | 3,750 | — | — |
| 2026-05-18 | LIU, MARGARET | Director | Sale | 3,750 | — | — |
| 2026-05-18 | LIU, MARGARET | Director | Buy | 3,750 | — | — |
| 2026-05-18 | JACKSON, SCOTT THOMAS | Director | Sale | 3,750 | — | — |
| 2026-05-18 | JACKSON, SCOTT THOMAS | Director | Buy | 3,750 | — | — |
| 2026-05-18 | HURWITZ, EDWARD | Director | Sale | 3,750 | — | — |
| 2026-05-18 | HURWITZ, EDWARD | Director | Buy | 3,750 | — | — |
| 2026-05-18 | HEIDEN, WILLIAM K | Director | Sale | 3,750 | — | — |
| 2026-05-18 | HEIDEN, WILLIAM K | Director | Buy | 3,750 | — | — |
| 2026-05-18 | FERRANTE, KAREN JEAN | Director | Sale | 3,750 | — | — |
| 2026-05-18 | FERRANTE, KAREN JEAN | Director | Buy | 3,750 | — | — |
| 2026-05-18 | CHHABRA, MEENU | Director | Sale | 3,750 | — | — |
| 2026-05-18 | CHHABRA, MEENU | Director | Buy | 3,750 | — | — |
| 2026-02-15 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Sale | 13,332 | — | — |
| 2026-02-15 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Buy | 13,332 | — | — |
| 2026-02-15 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Sale | 5,520 | $1.71 | $9439.20 |
| 2026-02-15 | SMITH, BETH ANN | VP, Controller & Treasurer | Sale | 1,095 | — | — |
| 2026-02-15 | SMITH, BETH ANN | VP, Controller & Treasurer | Buy | 1,095 | — | — |
| 2026-02-15 | SMITH, BETH ANN | VP, Controller & Treasurer | Sale | 423 | $1.71 | $723.33 |
| 2026-02-15 | RISSER, ERIC BLASIUS | Director, President and CEO | Sale | 16,665 | — | — |
| 2026-02-15 | RISSER, ERIC BLASIUS | Director, President and CEO | Buy | 16,665 | — | — |
| 2026-02-15 | RISSER, ERIC BLASIUS | Director, President and CEO | Sale | 6,433 | $1.71 | $11000.43 |
| 2026-02-15 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Sale | 13,332 | — | — |
| 2026-02-15 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Buy | 13,332 | — | — |
| 2026-02-15 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Sale | 5,147 | $1.71 | $8801.37 |
| 2026-02-15 | KOENIG, SCOTT | Director | Sale | 21,165 | — | — |
| 2026-02-15 | KOENIG, SCOTT | Director | Buy | 21,165 | — | — |
| 2026-02-15 | KARRELS, JAMES | SVP and CFO | Sale | 14,999 | — | — |
| 2026-02-15 | KARRELS, JAMES | SVP and CFO | Buy | 14,999 | — | — |
| 2026-02-15 | KARRELS, JAMES | SVP and CFO | Sale | 5,790 | $1.71 | $9900.90 |
| 2026-02-15 | BONVINI, EZIO | Sr VP, Research & CSO | Sale | 16,665 | — | — |
| 2026-02-15 | BONVINI, EZIO | Sr VP, Research & CSO | Buy | 16,665 | — | — |
| 2026-02-15 | BONVINI, EZIO | Sr VP, Research & CSO | Sale | 6,433 | $1.71 | $11000.43 |
| 2026-02-12 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Buy | 25,000 | — | — |
| 2026-02-12 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Buy | 150,000 | — | — |
| 2026-02-12 | SMITH, BETH ANN | VP, Controller & Treasurer | Buy | 15,625 | — | — |
| 2026-02-12 | SMITH, BETH ANN | VP, Controller & Treasurer | Buy | 93,750 | — | — |
| 2026-02-12 | RISSER, ERIC BLASIUS | Director, President and CEO | Buy | 100,000 | — | — |
| 2026-02-12 | RISSER, ERIC BLASIUS | Director, President and CEO | Buy | 595,000 | — | — |
| 2026-02-12 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Buy | 25,000 | — | — |
| 2026-02-12 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Buy | 150,000 | — | — |
| 2026-02-12 | KARRELS, JAMES | SVP and CFO | Buy | 25,000 | — | — |
| 2026-02-12 | KARRELS, JAMES | SVP and CFO | Buy | 150,000 | — | — |
| 2026-02-12 | BONVINI, EZIO | Sr VP, Research & CSO | Buy | 31,250 | — | — |
| 2026-02-12 | BONVINI, EZIO | Sr VP, Research & CSO | Buy | 187,500 | — | — |
| 2026-02-08 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Sale | 8,999 | — | — |
| 2026-02-08 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Buy | 8,999 | — | — |
| 2026-02-08 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Sale | 3,186 | $1.81 | $5766.66 |
| 2026-02-08 | SMITH, BETH ANN | VP, Controller & Treasurer | Sale | 1,583 | — | — |
| 2026-02-08 | SMITH, BETH ANN | VP, Controller & Treasurer | Buy | 1,583 | — | — |
| 2026-02-08 | SMITH, BETH ANN | VP, Controller & Treasurer | Sale | 612 | $1.81 | $1107.72 |
| 2026-02-08 | RISSER, ERIC BLASIUS | Director, President and CEO | Sale | 11,166 | — | — |
| 2026-02-08 | RISSER, ERIC BLASIUS | Director, President and CEO | Buy | 11,166 | — | — |
| 2026-02-08 | RISSER, ERIC BLASIUS | Director, President and CEO | Sale | 4,311 | $1.81 | $7802.91 |
| 2026-02-08 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Sale | 8,999 | — | — |
| 2026-02-08 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Buy | 8,999 | — | — |
| 2026-02-08 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Sale | 3,474 | $1.81 | $6287.94 |
| 2026-02-08 | KOENIG, SCOTT | Director | Sale | 15,831 | — | — |
| 2026-02-08 | KOENIG, SCOTT | Director | Buy | 15,831 | — | — |
| 2026-02-08 | KARRELS, JAMES | SVP and CFO | Sale | 9,999 | — | — |
| 2026-02-08 | KARRELS, JAMES | SVP and CFO | Buy | 9,999 | — | — |
| 2026-02-08 | KARRELS, JAMES | SVP and CFO | Sale | 3,860 | $1.81 | $6986.60 |
| 2026-02-08 | BONVINI, EZIO | Sr VP, Research & CSO | Sale | 11,166 | — | — |
| 2026-02-08 | BONVINI, EZIO | Sr VP, Research & CSO | Buy | 11,166 | — | — |
| 2026-02-08 | BONVINI, EZIO | Sr VP, Research & CSO | Sale | 4,311 | $1.81 | $7802.91 |
| 2026-02-07 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Sale | 6,001 | — | — |
| 2026-02-07 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Buy | 6,001 | — | — |
| 2026-02-07 | SPITZNAGEL, THOMAS | Sr VP, Technical Ops | Sale | 2,485 | $1.81 | $4497.85 |
| 2026-02-07 | SMITH, BETH ANN | VP, Controller & Treasurer | Sale | 2,617 | — | — |
| 2026-02-07 | SMITH, BETH ANN | VP, Controller & Treasurer | Buy | 2,617 | — | — |
| 2026-02-07 | SMITH, BETH ANN | VP, Controller & Treasurer | Sale | 1,011 | $1.81 | $1829.91 |
| 2026-02-07 | RISSER, ERIC BLASIUS | Director, President and CEO | Sale | 6,668 | — | — |
| 2026-02-07 | RISSER, ERIC BLASIUS | Director, President and CEO | Buy | 6,668 | — | — |
| 2026-02-07 | RISSER, ERIC BLASIUS | Director, President and CEO | Sale | 2,575 | $1.81 | $4660.75 |
| 2026-02-07 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Sale | 6,001 | — | — |
| 2026-02-07 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Buy | 6,001 | — | — |
| 2026-02-07 | PETERS, JEFFREY STUART | Senior VP, GC, and Secretary | Sale | 2,317 | $1.81 | $4193.77 |
Frequently asked questions
Are MGNX insiders buying or selling?
Over the transactions on record, MGNX insiders have been net buyers, with about $101802.68 in stock sold across 43 sales. The entries tagged as buys are stock grants and option exercises recorded at $0, not open-market purchases.
Does insider selling at MGNX mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which MGNX insiders are selling the most?
Recent selling is concentrated in a few names. RISSER, ERIC BLASIUS accounts for the largest share on record, with about $23464.09 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.