Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2015-02-13 | 391.68 | 394.39 | 387.24 | 391.66 | 391.66 | 1,180,000 |
| 2015-02-12 | 394.69 | 395.00 | 386.14 | 392.11 | 392.11 | 1,755,100 |
| 2015-02-11 | 394.86 | 396.86 | 388.53 | 390.00 | 390.00 | 1,766,300 |
| 2015-02-10 | 398.05 | 400.86 | 394.06 | 395.13 | 395.13 | 1,811,600 |
| 2015-02-09 | 398.05 | 402.84 | 396.46 | 396.88 | 396.88 | 1,440,400 |
| 2015-02-06 | 400.30 | 407.94 | 399.00 | 402.00 | 402.00 | 1,640,500 |
| 2015-02-05 | 393.70 | 402.40 | 390.11 | 401.79 | 401.79 | 1,576,200 |
| 2015-02-04 | 388.60 | 394.48 | 381.36 | 391.12 | 391.12 | 2,165,000 |
| 2015-02-03 | 390.73 | 395.50 | 386.34 | 393.89 | 393.89 | 1,781,500 |
| 2015-02-02 | 389.03 | 394.98 | 382.00 | 390.00 | 390.00 | 1,832,700 |
| 2015-01-30 | 372.75 | 397.00 | 372.75 | 389.16 | 389.16 | 4,029,800 |
| 2015-01-29 | 351.53 | 354.61 | 345.76 | 353.25 | 353.25 | 1,707,800 |
| 2015-01-28 | 360.29 | 361.38 | 350.50 | 351.18 | 351.18 | 1,486,000 |
| 2015-01-27 | 358.28 | 364.76 | 357.13 | 357.89 | 357.89 | 1,446,300 |
| 2015-01-26 | 357.63 | 362.84 | 355.45 | 362.44 | 362.44 | 1,330,600 |
| 2015-01-23 | 352.98 | 359.87 | 352.03 | 357.53 | 357.53 | 1,077,700 |
| 2015-01-22 | 364.00 | 364.00 | 349.49 | 353.65 | 353.65 | 2,322,900 |
| 2015-01-21 | 361.41 | 366.17 | 358.22 | 361.83 | 361.83 | 1,337,000 |
| 2015-01-20 | 354.50 | 365.19 | 350.64 | 363.28 | 363.28 | 2,076,400 |
| 2015-01-16 | 339.37 | 353.44 | 339.35 | 352.75 | 352.75 | 1,673,000 |
| 2015-01-15 | 350.04 | 354.55 | 339.66 | 339.88 | 339.88 | 1,665,700 |
| 2015-01-14 | 348.00 | 355.61 | 347.52 | 348.75 | 348.75 | 1,429,900 |
| 2015-01-13 | 352.81 | 361.91 | 348.35 | 352.74 | 352.74 | 2,489,400 |
| 2015-01-12 | 345.50 | 350.00 | 343.71 | 347.84 | 347.84 | 1,899,200 |
| 2015-01-09 | 349.78 | 352.08 | 338.24 | 342.34 | 342.34 | 2,562,100 |
| 2015-01-08 | 359.42 | 360.00 | 341.71 | 350.25 | 350.25 | 4,277,700 |
| 2015-01-07 | 338.09 | 354.00 | 338.05 | 353.24 | 353.24 | 2,484,300 |
| 2015-01-06 | 339.98 | 346.64 | 334.40 | 334.65 | 334.65 | 1,898,200 |
| 2015-01-05 | 339.27 | 342.00 | 335.13 | 336.74 | 336.74 | 1,250,000 |
| 2015-01-02 | 342.84 | 346.99 | 340.33 | 342.01 | 342.01 | 976,300 |
| 2014-12-31 | 343.92 | 348.50 | 339.33 | 339.45 | 339.45 | 864,800 |
| 2014-12-30 | 341.51 | 345.01 | 339.43 | 342.19 | 342.19 | 933,500 |
| 2014-12-29 | 341.93 | 345.99 | 339.29 | 343.43 | 343.43 | 1,236,100 |
| 2014-12-26 | 342.92 | 345.55 | 338.02 | 342.40 | 342.40 | 1,138,700 |
| 2014-12-24 | 335.53 | 343.62 | 334.98 | 340.89 | 340.89 | 965,800 |
| 2014-12-23 | 353.56 | 353.79 | 328.68 | 335.76 | 335.76 | 2,631,500 |
| 2014-12-22 | 352.00 | 356.65 | 345.23 | 352.29 | 352.29 | 2,170,400 |
| 2014-12-19 | 343.28 | 361.93 | 343.06 | 360.67 | 360.67 | 3,691,300 |
| 2014-12-18 | 339.36 | 353.70 | 337.71 | 353.70 | 353.70 | 2,401,800 |
| 2014-12-17 | 326.50 | 333.73 | 322.35 | 332.89 | 332.89 | 1,652,700 |
| 2014-12-16 | 333.38 | 339.83 | 324.69 | 325.13 | 325.13 | 1,834,400 |
| 2014-12-15 | 346.50 | 346.65 | 333.12 | 335.80 | 335.80 | 1,402,800 |
| 2014-12-12 | 339.23 | 349.98 | 338.50 | 344.49 | 344.49 | 1,559,100 |
| 2014-12-11 | 344.87 | 351.38 | 341.86 | 342.33 | 342.33 | 1,471,700 |
| 2014-12-10 | 346.85 | 349.88 | 342.62 | 343.59 | 343.59 | 1,449,200 |
| 2014-12-09 | 340.40 | 348.06 | 337.57 | 347.61 | 347.61 | 1,295,500 |
| 2014-12-08 | 341.95 | 347.28 | 340.90 | 344.05 | 344.05 | 1,395,400 |
| 2014-12-05 | 341.99 | 345.93 | 339.71 | 340.87 | 340.87 | 1,460,300 |
| 2014-12-04 | 345.88 | 350.89 | 337.54 | 341.18 | 341.18 | 2,533,600 |
| 2014-12-03 | 328.52 | 347.74 | 328.52 | 347.34 | 347.34 | 4,668,700 |
| 2014-12-02 | 335.65 | 336.65 | 323.41 | 328.27 | 328.27 | 6,209,500 |
| 2014-12-01 | 306.43 | 310.48 | 306.11 | 308.44 | 308.44 | 1,146,100 |
| 2014-11-28 | 307.58 | 310.21 | 305.97 | 307.69 | 307.69 | 849,100 |
| 2014-11-26 | 305.00 | 305.83 | 301.39 | 304.92 | 304.92 | 1,085,800 |
| 2014-11-25 | 307.00 | 307.64 | 302.45 | 305.40 | 305.40 | 1,947,200 |
| 2014-11-24 | 305.61 | 308.84 | 304.78 | 306.74 | 306.74 | 1,388,200 |
| 2014-11-21 | 305.28 | 305.28 | 301.32 | 303.55 | 303.55 | 1,828,000 |
| 2014-11-20 | 300.10 | 303.98 | 297.83 | 299.10 | 299.10 | 1,772,400 |
| 2014-11-19 | 304.60 | 305.50 | 302.10 | 303.61 | 303.61 | 1,956,800 |
| 2014-11-18 | 305.68 | 306.98 | 303.02 | 305.56 | 305.56 | 1,643,200 |
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.