| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2 | 2 | 0.01% | 0.01% | 0.02% | Q2 2015 | Q3 2015 | 2 |
| NORTHERN TRUST CORP | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2015 | Q2 2015 | 1 |
This page lists all the filers that currently own PTC THERAPEUTICS INC or have owned PTC THERAPEUTICS INC in the past.