Cormorant Global Healthcare GP, LLC, 10% Owner, Director at PROTEOSTASIS THERAPEUTICS, INC. (PTI), bought 142,602 shares at $10.79 ($1.5M) on 2016-12-12, disclosed to the SEC on 2016-12-14.
Open-market purchase of $1.5M 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 C.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $10.79 | 100,000 | $1.1M | 69.8% |
| 2 | $10.98 | 21,301 | $234K | 15.1% |
| 3 | $10.98 | 21,301 | $234K | 15.1% |
| Total | $10.85 avg | 142,602 | $1.5M | 100% |
| Filing → |
| PTI | BUY | 2016-12-09 | $962K | — | Filing → |
| PTI | BUY | 2016-12-06 | $1.3M | — | Filing → |
| PTI | BUY | 2016-12-01 | $3.5M | — | Filing → |