| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 15 | 4 | 0.00% | 0.00% | 0.00% | Q1 2016 | Q3 2023 | 25 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| Citadel Advisors | 11 | 11 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q4 2015 | 11 |
| GROUP ONE TRADING, L.P. | 3 | 3 | 0.00% | 0.00% | 0.01% | Q4 2020 | Q1 2023 | 6 |
| Allianz Asset Management GmbH | 4 | 2 | 0.00% | 0.00% | 0.01% | Q4 2021 | Q3 2023 | 6 |
| JANE STREET GROUP, LLC | 3 | 2 | 0.00% | 0.00% | 0.00% | Q2 2022 | Q3 2023 | 5 |
| Twin Tree Management, LP | 4 | 4 | 0.01% | 0.03% | 0.06% | Q4 2022 | Q3 2023 | 4 |
| Waratah Capital Advisors Ltd. | 2 | 2 | 0.00% | 0.00% | 0.00% | Q3 2019 | Q4 2019 | 2 |
| WELLS FARGO & COMPANY/MN | 2 | 2 | 0.00% | 0.00% | 0.00% | Q3 2021 | Q4 2021 | 2 |
| JPMORGAN CHASE & CO | 2 | 2 | 0.00% | 0.00% | 0.00% | Q1 2016 | Q2 2016 | 2 |
| Maven Securities LTD | 1 | 1 | 0.01% | 0.01% | 0.01% | Q2 2021 | Q3 2023 | 2 |
This page lists all the filers that currently own GALLAGHER ARTHUR J & CO or have owned GALLAGHER ARTHUR J & CO in the past.