Franklin M. Berger, Director at PROTEOSTASIS THERAPEUTICS, INC. (PTI), bought 60,000 shares at $5.00 ($300K) on 2017-12-18, disclosed to the SEC on 2017-12-19.
Open-market purchase of $300k PTI by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade C.
Nothing distinguishes this filing.
| Filing → |
| EPIX | BUY | 2023-11-22 | $267K | — | Filing → |
| EPIX | BUY | 2023-11-16 | $518K | — | Filing → |
| EPIX | SELL | 2023-01-05 | $1.0M | — | Filing → |