Cormorant Global Healthcare GP, LLC, 10% Owner, Director at PROTEOSTASIS THERAPEUTICS, INC. (PTI), bought 88,834 shares at $10.74 ($962K) on 2016-12-07, disclosed to the SEC on 2016-12-09.
Open-market purchase of $962k PTI by 10% Owner, 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 D.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $10.74 | 22,598 | $243K | 25.2% |
| 2 | $10.74 | 22,598 | $243K | 25.2% |
| 3 | $10.93 | 21,819 | $238K | 24.8% |
| 4 | $10.93 | 21,819 | $238K | 24.8% |
| Total | $10.83 avg | 88,834 | $962K | 100% |
| Filing → |
| PTI | BUY | 2016-12-14 | $1.5M | — | Filing → |
| PTI | BUY | 2016-12-06 | $1.3M | — | Filing → |
| PTI | BUY | 2016-12-01 | $3.5M | — | Filing → |