| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 10 | 1 | 0.00% | 0.06% | 0.26% | Q3 2013 | Q3 2017 | 13 |
| Citadel Advisors | 13 | 13 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q2 2016 | 13 |
| SIMPLEX TRADING, LLC | 9 | 1 | 0.00% | 0.01% | 0.02% | Q4 2014 | Q3 2017 | 10 |
| Pentwater Capital Management LP | 6 | 6 | 0.08% | 0.17% | 0.35% | Q2 2016 | Q3 2017 | 6 |
| HARVEST MANAGEMENT LLC | 4 | 1 | 0.34% | 0.97% | 2.45% | Q1 2016 | Q3 2017 | 5 |
| JPMORGAN CHASE & CO | 2 | 1 | 0.00% | 0.00% | 0.00% | Q1 2016 | Q3 2017 | 3 |
| Tamarack Advisers, LP | 1 | 1 | 0.01% | 0.01% | 0.01% | Q3 2017 | Q3 2017 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.01% | 0.01% | 0.01% | Q3 2014 | Q3 2014 | 1 |
| GLAZER CAPITAL, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2017 | Q3 2017 | 1 |
| SG Americas Securities, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2016 | Q4 2016 | 1 |
| Hudson Bay Capital Management LP | 1 | 1 | 0.12% | 0.12% | 0.12% | Q4 2016 | Q4 2016 | 1 |
This page lists all the filers that currently own ALERE INC or have owned ALERE INC in the past.