| # | % | |||||
|---|---|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | 412,600 | 23,295,000 | 45.91% | Call | |
| 2 | Timber Hill LLC | 412,400 | 23,284,000 | 45.89% | Call | |
| 3 | Virtu KCG Holdings LLC | 35,100 | 1,982,000 | 3.91% | Call | |
| 4 | PFM Health Sciences, LP | 2,713,000 | 1,009,000 | 1.99% | Call | |
| 5 | SG Americas Securities, LLC | 150,800 | 641,000 | 1.26% | ||
| 6 | HARVEST MANAGEMENT LLC | 5,000 | 282,000 | 0.56% | Call | |
| 7 | SIMPLEX TRADING, LLC | 3,282 | 186,000 | 0.37% | Call | |
| 8 | JPMORGAN CHASE & CO | 700 | 40,000 | 0.08% | Call | |
| 9 | Partner Investment Management, L.P. | 53,000 | 20,000 | 0.04% | Call |
From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.
