| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 16 | 1 | 0.00% | 0.00% | 0.01% | Q4 2014 | Q3 2023 | 29 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| GROUP ONE TRADING, L.P. | 5 | 1 | 0.00% | 0.00% | 0.01% | Q2 2013 | Q2 2023 | 17 |
| Citadel Advisors | 11 | 1 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q2 2016 | 12 |
| JANE STREET GROUP, LLC | 4 | 4 | 0.00% | 0.00% | 0.00% | Q2 2022 | Q1 2023 | 4 |
| PURA VIDA INVESTMENTS, LLC | 1 | 1 | 0.51% | 0.68% | 0.91% | Q2 2021 | Q2 2022 | 3 |
| JPMORGAN CHASE & CO | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2022 | Q4 2022 | 1 |
This page lists all the filers that currently own PERKINELMER INC or have owned PERKINELMER INC in the past.