Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2017-12-20 | 330.75 | 335.80 | 329.30 | 333.47 | 333.47 | 1,276,500 |
| 2017-12-19 | 326.13 | 328.39 | 324.00 | 327.02 | 327.02 | 866,700 |
| 2017-12-18 | 329.67 | 330.42 | 324.54 | 325.95 | 325.95 | 990,800 |
| 2017-12-15 | 328.61 | 330.12 | 321.73 | 327.94 | 327.94 | 2,023,500 |
| 2017-12-14 | 332.00 | 332.00 | 321.11 | 323.55 | 323.55 | 1,173,900 |
| 2017-12-13 | 328.21 | 332.85 | 327.25 | 330.71 | 330.71 | 1,129,200 |
| 2017-12-12 | 325.20 | 327.90 | 323.84 | 327.75 | 327.75 | 747,400 |
| 2017-12-11 | 327.09 | 330.61 | 322.66 | 328.03 | 328.03 | 1,142,800 |
| 2017-12-08 | 321.00 | 327.55 | 319.85 | 325.77 | 325.77 | 1,133,900 |
| 2017-12-07 | 315.42 | 319.91 | 311.95 | 319.57 | 319.57 | 987,100 |
| 2017-12-06 | 319.00 | 320.58 | 311.75 | 314.66 | 314.66 | 938,800 |
| 2017-12-05 | 317.66 | 322.25 | 317.66 | 319.87 | 319.87 | 915,600 |
| 2017-12-04 | 319.20 | 321.75 | 315.56 | 317.40 | 317.40 | 908,700 |
| 2017-12-01 | 320.70 | 323.07 | 314.77 | 319.35 | 319.35 | 1,207,500 |
| 2017-11-30 | 320.69 | 323.69 | 317.76 | 322.17 | 322.17 | 1,186,200 |
| 2017-11-29 | 317.50 | 321.29 | 316.23 | 319.96 | 319.96 | 1,360,800 |
| 2017-11-28 | 314.12 | 317.39 | 312.10 | 317.14 | 317.14 | 1,100,700 |
| 2017-11-27 | 310.07 | 312.45 | 307.01 | 311.73 | 311.73 | 1,353,300 |
| 2017-11-24 | 308.50 | 310.35 | 307.27 | 308.97 | 308.97 | 514,000 |
| 2017-11-22 | 308.91 | 311.11 | 307.15 | 309.80 | 309.80 | 732,500 |
| 2017-11-21 | 310.87 | 311.22 | 306.11 | 309.06 | 309.06 | 1,281,600 |
| 2017-11-20 | 313.60 | 315.76 | 309.17 | 309.46 | 309.46 | 667,200 |
| 2017-11-17 | 313.47 | 316.00 | 310.18 | 313.97 | 313.97 | 907,400 |
| 2017-11-16 | 310.72 | 314.62 | 309.68 | 313.98 | 313.98 | 731,700 |
| 2017-11-15 | 309.69 | 313.19 | 308.00 | 310.28 | 310.28 | 1,294,000 |
| 2017-11-14 | 313.34 | 314.44 | 307.50 | 309.69 | 309.69 | 1,214,300 |
| 2017-11-13 | 310.47 | 316.07 | 308.57 | 315.71 | 315.71 | 1,186,800 |
| 2017-11-10 | 310.10 | 311.70 | 306.39 | 310.44 | 310.44 | 820,700 |
| 2017-11-09 | 312.00 | 313.97 | 308.90 | 309.96 | 309.96 | 895,400 |
| 2017-11-08 | 314.81 | 314.81 | 311.64 | 312.58 | 312.58 | 1,231,900 |
| 2017-11-07 | 315.94 | 315.98 | 310.46 | 313.57 | 313.57 | 887,500 |
| 2017-11-06 | 314.39 | 319.40 | 314.14 | 315.47 | 315.47 | 1,065,200 |
| 2017-11-03 | 309.79 | 314.21 | 308.21 | 314.14 | 314.14 | 828,000 |
| 2017-11-02 | 316.00 | 319.22 | 308.59 | 309.40 | 309.40 | 1,570,900 |
| 2017-11-01 | 312.75 | 319.95 | 311.57 | 315.73 | 315.73 | 1,386,200 |
| 2017-10-31 | 315.18 | 316.86 | 310.50 | 311.66 | 311.66 | 1,201,600 |
| 2017-10-30 | 307.74 | 317.67 | 307.20 | 315.80 | 315.80 | 1,469,600 |
| 2017-10-27 | 307.45 | 309.60 | 305.00 | 307.74 | 307.74 | 1,679,800 |
| 2017-10-26 | 310.00 | 313.57 | 305.12 | 307.64 | 307.64 | 1,905,300 |
| 2017-10-25 | 317.96 | 320.25 | 313.00 | 314.64 | 314.64 | 1,879,900 |
| 2017-10-24 | 319.00 | 321.11 | 301.81 | 315.73 | 315.73 | 5,849,300 |
| 2017-10-23 | 335.25 | 335.51 | 327.83 | 328.55 | 328.55 | 1,885,200 |
| 2017-10-20 | 343.00 | 343.31 | 333.93 | 338.10 | 338.10 | 1,909,300 |
| 2017-10-19 | 343.40 | 346.11 | 338.11 | 342.42 | 342.42 | 1,291,800 |
| 2017-10-18 | 346.56 | 348.84 | 343.54 | 344.58 | 344.58 | 1,246,700 |
| 2017-10-17 | 343.12 | 348.65 | 339.69 | 344.47 | 344.47 | 1,616,300 |
| 2017-10-16 | 337.73 | 344.37 | 333.17 | 335.68 | 335.68 | 1,176,600 |
| 2017-10-13 | 333.26 | 338.94 | 332.07 | 337.64 | 337.64 | 1,360,300 |
| 2017-10-12 | 332.93 | 334.32 | 330.04 | 333.31 | 333.31 | 1,120,200 |
| 2017-10-11 | 332.12 | 333.33 | 329.27 | 333.19 | 333.19 | 938,900 |
| 2017-10-10 | 328.55 | 332.87 | 328.25 | 332.83 | 332.83 | 1,004,000 |
| 2017-10-09 | 327.46 | 332.24 | 326.33 | 329.01 | 329.01 | 902,400 |
| 2017-10-06 | 325.21 | 328.50 | 324.60 | 327.48 | 327.48 | 1,039,000 |
| 2017-10-05 | 320.72 | 330.98 | 320.28 | 326.74 | 326.74 | 2,159,800 |
| 2017-10-04 | 313.57 | 316.55 | 306.00 | 314.92 | 314.92 | 1,067,600 |
| 2017-10-03 | 317.11 | 317.80 | 313.91 | 317.39 | 317.39 | 850,900 |
| 2017-10-02 | 315.19 | 317.13 | 313.12 | 316.17 | 316.17 | 1,674,000 |
| 2017-09-29 | 309.09 | 313.60 | 303.00 | 313.12 | 313.12 | 1,647,600 |
| 2017-09-28 | 312.75 | 314.57 | 308.88 | 310.00 | 310.00 | 957,200 |
| 2017-09-27 | 318.57 | 318.75 | 311.73 | 312.80 | 312.80 | 1,086,400 |
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.