ALEXION PHARMACEUTICALS INC's ticker is and the CUSIP is 015351959. A total of 7 filers reported holding ALEXION PHARMACEUTICALS INC in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $7,093,000 | +569.2% | 45,400 | +284.7% | 0.01% | +350.0% |
| Q1 2020 | $1,060,000 | -15.5% | 11,800 | +1.7% | 0.00% | -33.3% |
| Q4 2019 | $1,255,000 | -36.6% | 11,600 | -42.6% | 0.00% | -50.0% |
| Q3 2019 | $1,978,000 | +39.8% | 20,200 | +87.0% | 0.01% | +20.0% |
| Q2 2019 | $1,415,000 | -54.1% | 10,800 | -52.6% | 0.01% | -54.5% |
| Q1 2019 | $3,082,000 | +112.4% | 22,800 | +53.0% | 0.01% | +175.0% |
| Q4 2018 | $1,451,000 | – | 14,900 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 149,800 | $23,405,000 | 0.04% |
| SIMPLEX TRADING, LLC | 763 | $11,921,000 | 0.02% |
| IMC-Chicago, LLC | 45,400 | $7,093,000 | 0.01% |
| JPMORGAN CHASE & CO | 109,600 | $17,124,000 | 0.00% |
| SG Americas Securities, LLC | 199,400 | $32,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| OSAIC HOLDINGS, INC. | 2 | $0 | 0.00% |