Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2011-10-11 | 100.40 | 100.40 | 98.590 | 98.920 | 98.920 | 1,306,200 |
| 2011-10-10 | 101.03 | 101.20 | 99.950 | 100.68 | 100.68 | 1,576,700 |
| 2011-10-07 | 99.920 | 100.77 | 98.240 | 100.01 | 100.01 | 2,051,000 |
| 2011-10-06 | 98.260 | 100.00 | 97.230 | 99.410 | 99.410 | 3,047,200 |
| 2011-10-05 | 92.550 | 98.750 | 92.180 | 98.710 | 98.710 | 3,880,800 |
| 2011-10-04 | 88.600 | 91.940 | 87.720 | 91.660 | 91.660 | 2,309,300 |
| 2011-10-03 | 92.550 | 93.590 | 88.640 | 88.960 | 88.960 | 2,133,800 |
| 2011-09-30 | 93.690 | 94.430 | 92.120 | 93.150 | 93.150 | 1,498,300 |
| 2011-09-29 | 96.320 | 97.140 | 91.840 | 94.460 | 94.460 | 1,692,200 |
| 2011-09-28 | 97.250 | 98.670 | 95.000 | 95.040 | 95.040 | 1,048,200 |
| 2011-09-27 | 96.140 | 99.340 | 96.140 | 96.670 | 96.670 | 1,641,500 |
| 2011-09-26 | 94.350 | 96.170 | 93.090 | 95.730 | 95.730 | 1,767,000 |
| 2011-09-23 | 93.930 | 95.100 | 92.780 | 93.900 | 93.900 | 1,392,600 |
| 2011-09-22 | 94.440 | 95.940 | 93.240 | 94.540 | 94.540 | 1,883,000 |
| 2011-09-21 | 99.970 | 100.80 | 96.860 | 96.960 | 96.960 | 1,586,100 |
| 2011-09-20 | 100.05 | 101.76 | 99.390 | 100.26 | 100.26 | 1,462,900 |
| 2011-09-19 | 99.640 | 100.40 | 98.430 | 99.480 | 99.480 | 1,853,100 |
| 2011-09-16 | 100.00 | 102.01 | 99.570 | 100.89 | 100.89 | 3,524,400 |
| 2011-09-15 | 99.090 | 99.680 | 98.140 | 99.400 | 99.400 | 2,136,800 |
| 2011-09-14 | 95.190 | 99.070 | 94.440 | 97.840 | 97.840 | 3,210,600 |
| 2011-09-13 | 92.470 | 94.620 | 91.990 | 94.520 | 94.520 | 2,427,000 |
| 2011-09-12 | 89.370 | 92.020 | 89.370 | 91.990 | 91.990 | 1,838,800 |
| 2011-09-09 | 91.340 | 92.340 | 90.130 | 90.240 | 90.240 | 2,015,900 |
| 2011-09-08 | 92.180 | 92.500 | 91.040 | 91.550 | 91.550 | 2,221,000 |
| 2011-09-07 | 92.990 | 93.380 | 91.580 | 93.000 | 93.000 | 1,835,700 |
| 2011-09-06 | 89.170 | 92.070 | 89.040 | 91.910 | 91.910 | 1,733,700 |
| 2011-09-02 | 92.350 | 93.610 | 91.350 | 91.580 | 91.580 | 975,800 |
| 2011-09-01 | 94.020 | 95.470 | 93.020 | 93.610 | 93.610 | 1,205,400 |
| 2011-08-31 | 94.140 | 94.710 | 92.880 | 94.200 | 94.200 | 1,572,000 |
| 2011-08-30 | 93.070 | 94.240 | 92.730 | 93.600 | 93.600 | 1,309,600 |
| 2011-08-29 | 93.160 | 94.290 | 92.080 | 93.890 | 93.890 | 1,468,100 |
| 2011-08-26 | 90.070 | 92.540 | 88.240 | 92.290 | 92.290 | 1,493,400 |
| 2011-08-25 | 92.130 | 93.630 | 90.040 | 90.670 | 90.670 | 1,557,800 |
| 2011-08-24 | 90.740 | 92.130 | 89.650 | 92.050 | 92.050 | 1,712,900 |
| 2011-08-23 | 89.680 | 92.110 | 87.350 | 91.240 | 91.240 | 2,669,200 |
| 2011-08-22 | 91.510 | 92.210 | 88.870 | 89.410 | 89.410 | 1,813,100 |
| 2011-08-19 | 87.950 | 92.400 | 87.150 | 90.050 | 90.050 | 3,529,900 |
| 2011-08-18 | 88.450 | 89.390 | 86.860 | 88.460 | 88.460 | 2,353,800 |
| 2011-08-17 | 91.570 | 92.150 | 89.390 | 90.030 | 90.030 | 1,943,100 |
| 2011-08-16 | 91.360 | 92.340 | 90.250 | 91.100 | 91.100 | 1,576,500 |
| 2011-08-15 | 91.340 | 92.700 | 90.380 | 91.670 | 91.670 | 1,838,100 |
| 2011-08-12 | 88.380 | 91.220 | 87.350 | 90.980 | 90.980 | 2,530,500 |
| 2011-08-11 | 85.360 | 89.440 | 84.220 | 88.410 | 88.410 | 2,332,300 |
| 2011-08-10 | 86.500 | 88.360 | 84.940 | 85.030 | 85.030 | 2,722,500 |
| 2011-08-09 | 86.910 | 90.560 | 83.830 | 89.430 | 89.430 | 3,684,600 |
| 2011-08-08 | 91.290 | 93.870 | 87.140 | 88.000 | 88.000 | 3,713,800 |
| 2011-08-05 | 93.190 | 94.500 | 90.240 | 93.180 | 93.180 | 2,767,200 |
| 2011-08-04 | 97.370 | 97.680 | 92.500 | 92.550 | 92.550 | 2,959,600 |
| 2011-08-03 | 99.510 | 99.980 | 95.420 | 98.780 | 98.780 | 2,431,200 |
| 2011-08-02 | 102.04 | 104.16 | 99.540 | 99.670 | 99.670 | 2,795,000 |
| 2011-08-01 | 105.91 | 105.98 | 101.88 | 102.90 | 102.90 | 2,898,800 |
| 2011-07-29 | 101.76 | 102.75 | 99.540 | 101.87 | 101.87 | 1,745,300 |
| 2011-07-28 | 101.29 | 104.04 | 101.02 | 102.15 | 102.15 | 1,335,900 |
| 2011-07-27 | 104.21 | 106.05 | 101.50 | 101.81 | 101.81 | 2,525,300 |
| 2011-07-26 | 104.11 | 106.00 | 104.11 | 105.00 | 105.00 | 2,369,500 |
| 2011-07-25 | 105.35 | 106.82 | 103.97 | 103.99 | 103.99 | 2,932,300 |
| 2011-07-22 | 105.54 | 106.05 | 104.89 | 105.56 | 105.56 | 1,145,700 |
| 2011-07-21 | 104.48 | 106.06 | 104.44 | 105.62 | 105.62 | 1,267,200 |
| 2011-07-20 | 106.99 | 106.99 | 104.13 | 104.37 | 104.37 | 1,411,400 |
| 2011-07-19 | 104.14 | 107.33 | 104.12 | 107.21 | 107.21 | 1,550,800 |
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.