Andreas Halvorsen - Viking Global Investors
Holding/activity history for Alexion Pharmaceuticals Inc (ALXN)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2015 Q3 | 0 | 0.00 | Sell 100.00% | 0.15 | SEC | ||
| 2015 Q2 | 201,756 | 0.15 | Buy | 0.15 | $180.77 | $36,471,000 | SEC |
| 2015 Q1 | 0 | 0.00 | Sell 100.00% | 0.38 | SEC | ||
| 2014 Q4 | 390,271 | 0.38 | Reduce 82.25% | 1.33 | $185.03 | $72,212,000 | SEC |
| 2014 Q3 | 2,198,451 | 1.62 | Add 9.59% | 0.14 | $165.82 | $364,547,000 | SEC |
| 2014 Q2 | 2,006,092 | 1.52 | Add 9.23% | 0.13 | $156.25 | $313,452,000 | SEC |
| 2014 Q1 | 1,836,658 | 1.28 | Reduce 36.16% | 0.71 | $152.13 | $279,411,000 | SEC |
| 2013 Q4 | 2,877,008 | 1.96 | Reduce 16.72% | 0.41 | $132.88 | $382,308,000 | SEC |
| 2013 Q3 | 3,454,640 | 2.47 | Reduce 37.70% | 1.17 | $116.16 | $401,290,000 | SEC |
| 2013 Q2 | 5,544,949 | 3.10 | Reduce 41.40% | 3.01 | $92.24 | $511,466,000 | SEC |
| 2013 Q1 | 9,462,442 | 7.27 | Add 135.72% | 4.19 | $92.14 | $871,869,000 | SEC |
| 2012 Q4 | 4,014,242 | 3.58 | Buy | 3.58 | $93.74 | $376,295,000 | SEC |
| 2012 Q1 | 0 | 0.00 | Sell 100.00% | 3.27 | SEC | ||
| 2011 Q4 | 3,343,896 | 3.27 | Add 369.78% | 2.57 | $71.50 | $239,088,000 | SEC |
| 2011 Q3 | 711,800 | 0.73 | Buy | 0.73 | $64.06 | $45,597,000 | SEC |
| 2006 Q2 | 0 | 0.00 | Sell 100.00% | 0.33 | SEC | ||
| 2006 Q1 | 262,600 | 0.33 | Add 14.67% | 0.04 | $35.42 | $9,301,000 | SEC |
| 2005 Q4 | 229,000 | 0.21 | Buy | 0.21 | $20.25 | $4,637,000 | SEC |
| 2004 Q1 | 0 | 0.00 | Sell 100.00% | 3.85 | SEC | ||
| 2003 Q4 | 1,970,700 | 3.85 | Reduce 2.68% | 0.10 | $17.01 | $33,522,000 | SEC |
| 2003 Q3 | 2,025,000 | 3.73 | Buy | 3.73 | $16.93 | $34,283,000 | SEC |