| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 5 | 1 | 0.00% | 0.00% | 0.01% | Q2 2013 | Q2 2017 | 12 |
| SIMPLEX TRADING, LLC | 12 | 12 | 0.00% | 0.00% | 0.00% | Q4 2014 | Q3 2017 | 12 |
| Citadel Advisors | 9 | 9 | 0.00% | 0.00% | 0.00% | Q2 2014 | Q2 2016 | 9 |
| HARVEST MANAGEMENT LLC | 1 | 1 | 0.29% | 0.29% | 0.29% | Q2 2017 | Q2 2017 | 1 |
| JPMORGAN CHASE & CO | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2016 | Q2 2016 | 1 |
This page lists all the filers that currently own PAREXEL INTL CORP or have owned PAREXEL INTL CORP in the past.