| 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 | 32 | 32 | 0.00% | 0.00% | 0.01% | Q4 2014 | Q3 2022 | 32 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 17 | 17 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2022 | 17 |
| Citadel Advisors | 10 | 1 | 0.00% | 0.00% | 0.00% | Q3 2013 | Q2 2016 | 11 |
| Cypress Capital Management LLC (WY) | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2018 | Q2 2018 | 1 |
This page lists all the filers that currently own AMPIO PHARMACEUTICALS INC or have owned AMPIO PHARMACEUTICALS INC in the past.