| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 38 | 38 | 0.00% | 0.00% | 0.02% | Q2 2013 | Q3 2022 | 38 |
| SIMPLEX TRADING, LLC | 16 | 1 | 0.00% | 0.00% | 0.01% | Q4 2014 | Q3 2022 | 29 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 17 | 17 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2022 | 17 |
| Citadel Advisors | 12 | 12 | 0.00% | 0.00% | 0.00% | Q3 2013 | Q2 2016 | 12 |
| SABBY MANAGEMENT, LLC | 4 | 4 | 0.02% | 0.04% | 0.06% | Q4 2013 | Q3 2014 | 4 |
| BOLTON LP | 1 | 1 | 0.01% | 0.01% | 0.01% | Q3 2013 | Q3 2013 | 1 |
This page lists all the filers that currently own AMPIO PHARMACEUTICALS INC or have owned AMPIO PHARMACEUTICALS INC in the past.