| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| TOCQUEVILLE ASSET MANAGEMENT L.P. | 10 | 10 | 0.00% | 0.01% | 0.05% | Q2 2013 | Q3 2015 | 10 |
| MAIRS & POWER INC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q3 2014 | 1 |
External links
This page lists all the filers that currently own Petro River Oil Corp or have owned Petro River Oil Corp in the past.