Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2011-04-20 | 84.410 | 86.570 | 84.410 | 86.570 | 86.570 | 2,784,400 |
| 2011-04-19 | 82.880 | 83.990 | 82.610 | 83.990 | 83.990 | 1,945,900 |
| 2011-04-18 | 82.210 | 82.750 | 81.260 | 82.610 | 82.610 | 2,179,200 |
| 2011-04-15 | 82.230 | 83.100 | 81.240 | 82.960 | 82.960 | 2,312,700 |
| 2011-04-14 | 80.410 | 82.230 | 79.930 | 82.190 | 82.190 | 2,958,800 |
| 2011-04-13 | 78.190 | 81.010 | 78.190 | 80.960 | 80.960 | 3,985,900 |
| 2011-04-12 | 78.990 | 79.230 | 78.160 | 78.190 | 78.190 | 2,744,300 |
| 2011-04-11 | 76.710 | 78.750 | 76.400 | 78.550 | 78.550 | 6,893,400 |
| 2011-04-08 | 73.370 | 73.650 | 72.970 | 73.290 | 73.290 | 1,428,900 |
| 2011-04-07 | 73.320 | 73.950 | 72.700 | 73.030 | 73.030 | 1,589,600 |
| 2011-04-06 | 73.570 | 74.200 | 73.400 | 73.600 | 73.600 | 1,353,400 |
| 2011-04-05 | 72.900 | 73.990 | 72.900 | 73.250 | 73.250 | 1,481,600 |
| 2011-04-04 | 73.250 | 73.320 | 72.970 | 73.270 | 73.270 | 1,083,200 |
| 2011-04-01 | 73.590 | 73.660 | 72.800 | 72.960 | 72.960 | 1,923,300 |
| 2011-03-31 | 71.950 | 73.530 | 71.900 | 73.470 | 73.470 | 2,508,600 |
| 2011-03-30 | 71.480 | 72.200 | 71.450 | 71.900 | 71.900 | 2,167,100 |
| 2011-03-29 | 70.410 | 71.240 | 70.390 | 71.100 | 71.100 | 1,393,000 |
| 2011-03-28 | 71.170 | 71.320 | 70.380 | 70.540 | 70.540 | 1,243,800 |
| 2011-03-25 | 71.550 | 71.930 | 71.200 | 71.200 | 71.200 | 1,482,000 |
| 2011-03-24 | 70.170 | 71.450 | 69.650 | 71.270 | 71.270 | 1,349,900 |
| 2011-03-23 | 69.720 | 70.310 | 69.190 | 70.070 | 70.070 | 1,458,200 |
| 2011-03-22 | 69.580 | 70.130 | 69.130 | 69.760 | 69.760 | 1,794,200 |
| 2011-03-21 | 70.000 | 70.540 | 69.530 | 69.610 | 69.610 | 1,506,200 |
| 2011-03-18 | 69.430 | 70.260 | 69.250 | 69.530 | 69.530 | 2,608,800 |
| 2011-03-17 | 69.400 | 69.710 | 69.120 | 69.250 | 69.250 | 1,164,500 |
| 2011-03-16 | 69.140 | 69.680 | 68.310 | 68.700 | 68.700 | 2,325,100 |
| 2011-03-15 | 69.270 | 69.950 | 68.810 | 69.560 | 69.560 | 1,608,500 |
| 2011-03-14 | 70.460 | 71.500 | 70.110 | 70.650 | 70.650 | 1,546,500 |
| 2011-03-11 | 70.620 | 71.350 | 70.470 | 71.000 | 71.000 | 1,321,400 |
| 2011-03-10 | 71.050 | 71.410 | 70.100 | 70.600 | 70.600 | 1,632,000 |
| 2011-03-09 | 71.330 | 71.830 | 70.990 | 71.740 | 71.740 | 1,031,900 |
| 2011-03-08 | 71.310 | 72.000 | 70.830 | 71.600 | 71.600 | 1,688,400 |
| 2011-03-07 | 71.410 | 71.880 | 70.450 | 71.240 | 71.240 | 1,999,200 |
| 2011-03-04 | 71.250 | 71.760 | 70.630 | 71.150 | 71.150 | 1,387,400 |
| 2011-03-03 | 70.050 | 71.950 | 70.040 | 71.420 | 71.420 | 1,815,500 |
| 2011-03-02 | 69.730 | 70.460 | 69.000 | 70.000 | 70.000 | 1,938,700 |
| 2011-03-01 | 68.410 | 70.730 | 68.260 | 70.180 | 70.180 | 3,840,800 |
| 2011-02-28 | 67.800 | 68.500 | 67.740 | 68.400 | 68.400 | 2,027,000 |
| 2011-02-25 | 67.420 | 68.250 | 67.350 | 67.780 | 67.780 | 1,394,800 |
| 2011-02-24 | 67.230 | 67.720 | 66.790 | 67.260 | 67.260 | 1,952,500 |
| 2011-02-23 | 67.170 | 67.640 | 66.750 | 66.760 | 66.760 | 2,355,400 |
| 2011-02-22 | 67.290 | 68.180 | 67.070 | 67.090 | 67.090 | 1,974,600 |
| 2011-02-18 | 67.540 | 67.870 | 67.130 | 67.640 | 67.640 | 1,882,000 |
| 2011-02-17 | 67.010 | 67.950 | 66.690 | 67.650 | 67.650 | 1,092,900 |
| 2011-02-16 | 67.170 | 67.480 | 66.830 | 67.360 | 67.360 | 1,587,400 |
| 2011-02-15 | 66.880 | 67.190 | 66.710 | 67.090 | 67.090 | 2,147,400 |
| 2011-02-14 | 65.660 | 67.290 | 65.660 | 67.270 | 67.270 | 1,761,600 |
| 2011-02-11 | 65.850 | 66.110 | 65.390 | 65.830 | 65.830 | 1,257,000 |
| 2011-02-10 | 66.000 | 66.350 | 65.830 | 66.220 | 66.220 | 1,589,100 |
| 2011-02-09 | 65.980 | 66.130 | 65.480 | 66.000 | 66.000 | 2,105,800 |
| 2011-02-08 | 65.140 | 66.160 | 64.770 | 66.150 | 66.150 | 1,802,800 |
| 2011-02-07 | 65.880 | 66.130 | 65.200 | 65.250 | 65.250 | 1,586,200 |
| 2011-02-04 | 65.640 | 65.930 | 64.610 | 65.930 | 65.930 | 1,638,900 |
| 2011-02-03 | 66.170 | 66.210 | 65.120 | 65.580 | 65.580 | 1,440,900 |
| 2011-02-02 | 65.280 | 66.280 | 64.920 | 66.150 | 66.150 | 1,541,100 |
| 2011-02-01 | 67.750 | 68.000 | 65.130 | 65.490 | 65.490 | 4,033,400 |
| 2011-01-31 | 65.570 | 65.940 | 64.280 | 65.470 | 65.470 | 2,181,200 |
| 2011-01-28 | 67.300 | 67.480 | 64.850 | 65.080 | 65.080 | 2,319,100 |
| 2011-01-27 | 67.340 | 67.610 | 67.080 | 67.090 | 67.090 | 1,338,500 |
| 2011-01-26 | 67.020 | 67.860 | 66.650 | 67.500 | 67.500 | 1,642,900 |
Stock splits
| Date | Split (new : old) |
|---|---|
| 2001-01-18 | 3:1 |
| 1999-12-21 | 2:1 |
Dividends
No dividends on record.
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.