Andreas Halvorsen - Viking Global Investors
Holding/activity history for Biogen Inc. (BIIB)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2017 Q2 | 0 | 0.00 | Sell 100.00% | 0.85 | SEC | ||
| 2017 Q1 | 688,765 | 0.85 | Reduce 64.10% | 1.61 | $273.42 | $188,322,000 | SEC |
| 2016 Q4 | 1,918,812 | 2.51 | Reduce 12.24% | 0.37 | $283.58 | $544,137,000 | SEC |
| 2016 Q3 | 2,186,336 | 3.03 | Reduce 31.90% | 1.07 | $313.03 | $684,389,000 | SEC |
| 2016 Q2 | 3,210,507 | 3.34 | Add 1,290.15% | 3.10 | $241.82 | $776,365,000 | SEC |
| 2016 Q1 | 230,947 | 0.27 | Reduce 37.39% | 0.17 | $260.32 | $60,120,000 | SEC |
| 2015 Q4 | 368,864 | 0.45 | Buy | 0.45 | $306.35 | $113,001,000 | SEC |
| 2015 Q3 | 0 | 0.00 | Sell 100.00% | 0.85 | SEC | ||
| 2015 Q2 | 513,444 | 0.85 | Buy | 0.85 | $403.94 | $207,401,000 | SEC |
| 2014 Q2 | 0 | 0.00 | Sell 100.00% | 0.54 | SEC | ||
| 2014 Q1 | 388,900 | 0.54 | Buy | 0.54 | $305.87 | $118,953,000 | SEC |
| 2013 Q4 | 0 | 0.00 | Sell 100.00% | 0.43 | SEC | ||
| 2013 Q3 | 290,345 | 0.43 | Reduce 69.95% | 0.88 | $240.76 | $69,903,000 | SEC |
| 2013 Q2 | 966,288 | 1.26 | Reduce 24.91% | 0.52 | $215.20 | $207,945,000 | SEC |
| 2013 Q1 | 1,286,835 | 2.07 | Reduce 52.79% | 2.00 | $192.62 | $247,867,000 | SEC |
| 2012 Q4 | 2,725,961 | 3.79 | Add 36.30% | 1.01 | $146.37 | $398,998,000 | SEC |
| 2012 Q3 | 2,000,023 | 2.85 | Reduce 44.23% | 2.60 | $149.21 | $298,423,000 | SEC |
| 2012 Q2 | 3,586,445 | 5.88 | Add 11.54% | 0.61 | $144.38 | $517,810,000 | SEC |
| 2012 Q1 | 3,215,487 | 4.92 | Add 117.78% | 2.66 | $126.00 | $405,151,000 | SEC |
| 2011 Q4 | 1,476,496 | 2.23 | Reduce 41.62% | 1.57 | $110.05 | $162,488,000 | SEC |
| 2011 Q3 | 2,529,322 | 3.76 | Add 82.10% | 1.70 | $93.15 | $235,606,000 | SEC |
| 2011 Q2 | 1,388,966 | 1.86 | Buy | 1.86 | $106.92 | $148,508,000 | SEC |
| 2004 Q3 | 0 | 0.00 | Sell 100.00% | 4.32 | SEC | ||
| 2004 Q2 | 741,600 | 4.32 | Reduce 38.89% | 2.39 | $63.25 | $46,906,000 | SEC |
| 2004 Q1 | 1,213,600 | 6.14 | Reduce 42.01% | 3.71 | $55.60 | $67,476,000 | SEC |
| 2003 Q4 | 2,092,900 | 8.83 | Buy | 8.83 | $36.70 | $76,809,000 | SEC |