Cormorant Global Healthcare GP, LLC, 10% Owner, Director at PROTEOSTASIS THERAPEUTICS, INC. (PTI), bought 125,946 shares at $10.89 ($1.3M) on 2016-12-06, disclosed to the SEC on 2016-12-06.
Open-market purchase of $1.3M 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 | $10.48 | 50,000 | $524K | 39.0% |
| 2 | $10.78 | 29,757 | $321K | 23.9% |
| 3 | $10.78 | 29,757 | $321K | 23.9% |
| 4 | $10.89 | 8,216 | $89K | 6.7% |
| 5 | $10.89 | 8,216 | $89K | 6.7% |
| Total | $10.68 avg | 125,946 |
| $1.3M |
| 100% |
| Filing → |
| PTI | BUY | 2016-12-14 | $1.5M | — | Filing → |
| PTI | BUY | 2016-12-09 | $962K | — | Filing → |
| PTI | BUY | 2016-12-01 | $3.5M | — | Filing → |