| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 45 | 45 | 0.00% | 0.01% | 0.05% | Q2 2013 | Q2 2024 | 45 |
| SIMPLEX TRADING, LLC | 36 | 1 | 0.00% | 0.00% | 0.01% | Q4 2014 | Q2 2024 | 37 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 24 | 24 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q2 2024 | 24 |
| Citadel Advisors | 13 | 13 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q2 2016 | 13 |
| JANE STREET GROUP, LLC | 7 | 1 | 0.00% | 0.00% | 0.00% | Q2 2022 | Q2 2024 | 8 |
| Timber Hill LLC | 3 | 1 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q4 2016 | 7 |
| HBK INVESTMENTS L P | 3 | 3 | 0.01% | 0.01% | 0.01% | Q1 2021 | Q3 2021 | 3 |
| Virtu KCG Holdings LLC | 2 | 2 | 0.00% | 0.00% | 0.00% | Q1 2014 | Q2 2014 | 2 |
| PEAK6 Group LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q3 2014 | 1 |
This page lists all the filers that currently own IRIDIUM COMMUNICATIONS INC or have owned IRIDIUM COMMUNICATIONS INC in the past.