| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 42 | 42 | 0.00% | 0.03% | 0.20% | Q2 2013 | Q3 2023 | 42 |
| SIMPLEX TRADING, LLC | 36 | 36 | 0.00% | 0.01% | 0.02% | Q4 2014 | Q3 2023 | 36 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| Citadel Advisors | 13 | 13 | 0.00% | 0.00% | 0.01% | Q2 2013 | Q2 2016 | 13 |
| JPMORGAN CHASE & CO | 4 | 1 | 0.00% | 0.00% | 0.00% | Q1 2018 | Q3 2023 | 13 |
| SABBY MANAGEMENT, LLC | 8 | 2 | 0.17% | 0.70% | 2.43% | Q2 2014 | Q1 2018 | 12 |
| Timber Hill LLC | 4 | 1 | 0.00% | 0.00% | 0.01% | Q2 2013 | Q1 2017 | 8 |
| BOOTHBAY FUND MANAGEMENT, LLC | 3 | 1 | 0.03% | 0.13% | 0.28% | Q2 2018 | Q4 2020 | 7 |
| JANE STREET GROUP, LLC | 6 | 6 | 0.00% | 0.01% | 0.02% | Q2 2022 | Q3 2023 | 6 |
| Twin Tree Management, LP | 3 | 1 | 0.00% | 0.08% | 0.17% | Q2 2022 | Q3 2023 | 4 |
| PURA VIDA INVESTMENTS, LLC | 2 | 1 | 0.26% | 0.35% | 0.42% | Q1 2022 | Q4 2022 | 3 |
| SG Americas Securities, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q1 2018 | Q1 2020 | 2 |
| Daiwa Securities Group Inc. | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2022 | Q3 2022 | 1 |
| Marathon Trading Investment Management LLC | 1 | 1 | 0.03% | 0.03% | 0.03% | Q3 2020 | Q3 2020 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q3 2014 | 1 |
| Iguana Healthcare Management, LLC | 1 | 1 | 0.58% | 0.58% | 0.58% | Q1 2016 | Q1 2016 | 1 |
| WELLS FARGO & COMPANY/MN | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2021 | Q3 2021 | 1 |
| SPHERA FUNDS MANAGEMENT LTD. | 1 | 1 | 0.86% | 0.86% | 0.86% | Q2 2016 | Q2 2016 | 1 |
This page lists all the filers that currently own ALNYLAM PHARMACEUTICALS INC or have owned ALNYLAM PHARMACEUTICALS INC in the past.