ALEXION PHARMACEUTICALS INC's ticker is and the CUSIP is 015351959. A total of 4 filers reported holding ALEXION PHARMACEUTICALS INC in Q3 2013. The put-call ratio across all filers is - and the average weighting 0.1%.
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Hudson Bay Capital Management LP | 100,000 | $11,616,000 | 0.43% |
| Citadel Advisors | 54,000 | $6,273,000 | 0.01% |
| Virtu KCG Holdings LLC | 5,600 | $650,000 | 0.01% |
| Timber Hill LLC | 10,300 | $1,196,000 | 0.00% |