Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2020-05-11 | 313.41 | 330.13 | 313.00 | 328.01 | 328.01 | 1,513,500 |
| 2020-05-08 | 315.49 | 317.70 | 311.37 | 314.02 | 314.02 | 1,126,200 |
| 2020-05-07 | 308.71 | 317.55 | 308.51 | 314.01 | 314.01 | 1,764,300 |
| 2020-05-06 | 305.05 | 312.66 | 304.98 | 306.78 | 306.78 | 1,255,500 |
| 2020-05-05 | 297.14 | 306.50 | 297.08 | 304.44 | 304.44 | 1,348,400 |
| 2020-05-04 | 294.06 | 297.90 | 293.02 | 296.52 | 296.52 | 1,253,100 |
| 2020-05-01 | 295.07 | 297.92 | 291.88 | 293.09 | 293.09 | 1,538,700 |
| 2020-04-30 | 299.00 | 305.05 | 296.14 | 296.83 | 296.83 | 2,291,100 |
| 2020-04-29 | 308.84 | 313.34 | 304.63 | 304.71 | 304.71 | 2,100,100 |
| 2020-04-28 | 305.02 | 312.83 | 303.00 | 305.22 | 305.22 | 1,862,600 |
| 2020-04-27 | 300.58 | 305.00 | 299.74 | 303.24 | 303.24 | 1,611,400 |
| 2020-04-24 | 293.06 | 297.94 | 290.10 | 297.80 | 297.80 | 1,778,800 |
| 2020-04-23 | 293.61 | 297.44 | 291.57 | 292.25 | 292.25 | 2,911,100 |
| 2020-04-22 | 302.75 | 306.99 | 289.02 | 298.01 | 298.01 | 6,650,100 |
| 2020-04-21 | 332.51 | 336.19 | 328.37 | 329.01 | 329.01 | 1,521,800 |
| 2020-04-20 | 338.64 | 350.24 | 337.28 | 339.41 | 339.41 | 1,620,700 |
| 2020-04-17 | 345.97 | 346.05 | 335.29 | 342.55 | 342.55 | 1,701,800 |
| 2020-04-16 | 331.15 | 340.38 | 328.17 | 338.34 | 338.34 | 1,602,600 |
| 2020-04-15 | 329.45 | 333.20 | 322.86 | 326.94 | 326.94 | 1,426,400 |
| 2020-04-14 | 329.00 | 336.50 | 328.34 | 333.76 | 333.76 | 1,675,500 |
| 2020-04-13 | 318.01 | 325.11 | 316.79 | 322.94 | 322.94 | 2,083,700 |
| 2020-04-09 | 315.10 | 322.45 | 314.01 | 321.05 | 321.05 | 1,479,600 |
| 2020-04-08 | 305.25 | 319.39 | 301.01 | 316.95 | 316.95 | 1,932,300 |
| 2020-04-07 | 314.94 | 319.60 | 299.61 | 301.21 | 301.21 | 2,457,700 |
| 2020-04-06 | 308.49 | 314.14 | 300.60 | 311.39 | 311.39 | 3,181,100 |
| 2020-04-03 | 303.70 | 311.52 | 296.81 | 300.51 | 300.51 | 1,422,800 |
| 2020-04-02 | 290.10 | 307.15 | 290.00 | 304.47 | 304.47 | 3,286,600 |
| 2020-04-01 | 308.81 | 313.46 | 290.35 | 293.27 | 293.27 | 2,177,500 |
| 2020-03-31 | 313.48 | 319.94 | 309.20 | 316.38 | 316.38 | 2,869,100 |
| 2020-03-30 | 300.00 | 321.41 | 298.08 | 316.13 | 316.13 | 1,747,300 |
| 2020-03-27 | 297.00 | 307.14 | 294.25 | 296.75 | 296.75 | 1,653,100 |
| 2020-03-26 | 284.74 | 306.77 | 284.51 | 304.94 | 304.94 | 2,270,100 |
| 2020-03-25 | 274.73 | 300.84 | 268.13 | 284.98 | 284.98 | 2,678,900 |
| 2020-03-24 | 278.89 | 283.26 | 269.98 | 276.19 | 276.19 | 3,464,100 |
| 2020-03-23 | 283.35 | 288.06 | 262.25 | 269.19 | 269.19 | 2,695,400 |
| 2020-03-20 | 288.02 | 301.88 | 277.81 | 278.77 | 278.77 | 2,730,000 |
| 2020-03-19 | 293.15 | 297.48 | 283.28 | 288.02 | 288.02 | 2,470,000 |
| 2020-03-18 | 293.71 | 306.74 | 277.51 | 298.68 | 298.68 | 2,767,300 |
| 2020-03-17 | 285.33 | 314.65 | 284.14 | 305.32 | 305.32 | 2,625,900 |
| 2020-03-16 | 281.86 | 309.35 | 273.59 | 281.72 | 281.72 | 3,862,600 |
| 2020-03-13 | 279.14 | 306.00 | 276.24 | 305.21 | 305.21 | 3,641,100 |
| 2020-03-12 | 280.00 | 285.42 | 266.01 | 268.88 | 268.88 | 2,901,000 |
| 2020-03-11 | 295.99 | 303.36 | 291.96 | 294.25 | 294.25 | 1,878,900 |
| 2020-03-10 | 304.49 | 308.77 | 289.58 | 305.63 | 305.63 | 2,378,600 |
| 2020-03-09 | 301.00 | 306.97 | 293.76 | 297.19 | 297.19 | 2,149,500 |
| 2020-03-06 | 308.27 | 319.18 | 306.17 | 317.95 | 317.95 | 1,513,000 |
| 2020-03-05 | 319.73 | 326.45 | 315.00 | 317.70 | 317.70 | 1,470,400 |
| 2020-03-04 | 319.29 | 328.45 | 316.41 | 328.45 | 328.45 | 1,752,300 |
| 2020-03-03 | 320.28 | 333.00 | 311.87 | 315.78 | 315.78 | 2,036,100 |
| 2020-03-02 | 308.64 | 328.23 | 307.83 | 327.89 | 327.89 | 2,364,600 |
| 2020-02-28 | 300.23 | 310.54 | 299.00 | 308.39 | 308.39 | 2,396,200 |
| 2020-02-27 | 324.72 | 325.55 | 309.63 | 310.08 | 310.08 | 2,221,100 |
| 2020-02-26 | 326.98 | 330.93 | 323.61 | 327.45 | 327.45 | 1,411,300 |
| 2020-02-25 | 327.20 | 330.61 | 322.70 | 324.11 | 324.11 | 1,831,100 |
| 2020-02-24 | 331.50 | 336.00 | 325.42 | 325.98 | 325.98 | 1,732,500 |
| 2020-02-21 | 336.97 | 337.82 | 334.60 | 336.71 | 336.71 | 923,200 |
| 2020-02-20 | 342.18 | 343.00 | 332.50 | 336.64 | 336.64 | 1,497,800 |
| 2020-02-19 | 338.00 | 341.77 | 335.42 | 341.04 | 341.04 | 1,488,400 |
| 2020-02-18 | 343.66 | 344.00 | 334.09 | 337.10 | 337.10 | 1,515,100 |
| 2020-02-14 | 334.00 | 335.40 | 331.83 | 333.00 | 333.00 | 1,023,200 |
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.