Thomas Spitznagel is VP at MACROGENICS INC (MGNX). They have made 5 open-market trades across 1 company since 2019, most recently 2026-02-15.
CIK 0001675464
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MGNX | 38,543 | $125K |
Shares reported on the most recent Form 4, priced at the 2026-02-17 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MGNX | SELL · 10b5-1 | 2024-03-04 | 2024-03-06 | $20.00 | $200K | -27.7% | -15.5% | -79.8% |
| MGNX | SELL | 2021-07-16 | 2021-07-20 | $25.01 | $250K | -2.7% | -15.5% | -23.0% |
| MGNX | SELL | 2021-04-15 | 2021-04-19 | $30.91 | $155K | +10.9% | -2.6% | -22.5% |
| MGNX | SELL | 2020-08-20 | 2020-08-21 | $26.87 | $202K | +0.7% | +4.0% | -17.9% |
| MGNX | SELL | 2020-05-20 | 2020-05-21 | $25.30 | $190K | -16.5% | +13.0% | +7.8% |
| MGNX | SELL | 2019-02-06 | 2019-02-08 | $30.00 | $53K | -2.5% | -11.9% | -22.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.