Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2015-10-30 | 294.00 | 295.04 | 290.00 | 290.51 | 290.51 | 5,209,100 |
| 2015-10-29 | 294.30 | 299.41 | 290.77 | 293.72 | 293.72 | 3,612,000 |
| 2015-10-28 | 291.95 | 294.06 | 285.50 | 293.69 | 293.69 | 3,306,700 |
| 2015-10-27 | 276.00 | 291.77 | 275.11 | 290.63 | 290.63 | 3,722,600 |
| 2015-10-26 | 279.82 | 282.15 | 273.37 | 274.60 | 274.60 | 3,149,200 |
| 2015-10-23 | 279.00 | 280.88 | 270.70 | 276.99 | 276.99 | 3,866,400 |
| 2015-10-22 | 276.33 | 283.48 | 270.07 | 276.83 | 276.83 | 4,522,700 |
| 2015-10-21 | 285.00 | 291.01 | 262.45 | 276.34 | 276.34 | 8,374,300 |
| 2015-10-20 | 273.06 | 277.29 | 264.58 | 265.81 | 265.81 | 3,539,800 |
| 2015-10-19 | 270.87 | 276.50 | 268.04 | 273.02 | 273.02 | 2,940,000 |
| 2015-10-16 | 270.18 | 272.99 | 267.00 | 272.37 | 272.37 | 2,849,300 |
| 2015-10-15 | 256.31 | 268.53 | 254.00 | 268.41 | 268.41 | 2,750,300 |
| 2015-10-14 | 260.44 | 262.85 | 254.40 | 256.79 | 256.79 | 3,961,400 |
| 2015-10-13 | 262.00 | 270.82 | 254.78 | 256.04 | 256.04 | 4,302,900 |
| 2015-10-12 | 270.92 | 270.92 | 263.51 | 264.67 | 264.67 | 3,686,800 |
| 2015-10-09 | 279.63 | 280.00 | 267.27 | 269.16 | 269.16 | 4,047,200 |
| 2015-10-08 | 278.33 | 281.50 | 272.28 | 279.88 | 279.88 | 2,558,900 |
| 2015-10-07 | 279.86 | 284.62 | 274.01 | 279.24 | 279.24 | 3,469,900 |
| 2015-10-06 | 282.41 | 282.98 | 269.00 | 275.99 | 275.99 | 4,291,600 |
| 2015-10-05 | 291.43 | 292.48 | 282.76 | 286.55 | 286.55 | 2,703,000 |
| 2015-10-02 | 283.38 | 290.75 | 280.72 | 290.35 | 290.35 | 2,982,000 |
| 2015-10-01 | 291.99 | 292.89 | 282.45 | 287.30 | 287.30 | 2,871,900 |
| 2015-09-30 | 283.98 | 292.00 | 283.06 | 291.81 | 291.81 | 2,935,600 |
| 2015-09-29 | 270.60 | 288.57 | 270.60 | 278.23 | 278.23 | 3,819,700 |
| 2015-09-28 | 282.54 | 284.00 | 267.00 | 272.28 | 272.28 | 4,908,200 |
| 2015-09-25 | 298.78 | 298.78 | 280.32 | 284.79 | 284.79 | 3,366,100 |
| 2015-09-24 | 295.58 | 298.15 | 287.12 | 293.01 | 293.01 | 2,663,100 |
| 2015-09-23 | 299.27 | 303.79 | 296.30 | 298.34 | 298.34 | 1,642,900 |
| 2015-09-22 | 292.52 | 300.00 | 289.00 | 299.06 | 299.06 | 4,391,700 |
| 2015-09-21 | 315.29 | 315.43 | 294.62 | 297.16 | 297.16 | 4,161,900 |
| 2015-09-18 | 321.06 | 324.10 | 313.00 | 314.67 | 314.67 | 4,618,800 |
| 2015-09-17 | 321.19 | 330.54 | 318.38 | 325.30 | 325.30 | 2,589,200 |
| 2015-09-16 | 319.05 | 322.41 | 315.08 | 319.56 | 319.56 | 1,984,700 |
| 2015-09-15 | 316.41 | 321.65 | 313.29 | 319.86 | 319.86 | 2,060,400 |
| 2015-09-14 | 316.89 | 318.20 | 311.94 | 316.23 | 316.23 | 1,811,700 |
| 2015-09-11 | 310.67 | 315.50 | 307.21 | 315.37 | 315.37 | 1,928,100 |
| 2015-09-10 | 302.91 | 315.77 | 302.11 | 312.62 | 312.62 | 2,189,600 |
| 2015-09-09 | 313.55 | 317.83 | 302.47 | 303.48 | 303.48 | 1,623,500 |
| 2015-09-08 | 306.91 | 309.22 | 302.55 | 308.74 | 308.74 | 1,840,900 |
| 2015-09-04 | 297.72 | 304.14 | 295.03 | 302.26 | 302.26 | 1,696,600 |
| 2015-09-03 | 306.47 | 309.72 | 300.84 | 301.63 | 301.63 | 1,787,800 |
| 2015-09-02 | 298.48 | 304.43 | 293.61 | 304.21 | 304.21 | 2,271,600 |
| 2015-09-01 | 292.22 | 301.98 | 291.26 | 292.50 | 292.50 | 2,498,500 |
| 2015-08-31 | 302.16 | 304.51 | 296.47 | 297.30 | 297.30 | 1,642,400 |
| 2015-08-28 | 301.00 | 306.45 | 299.76 | 303.69 | 303.69 | 2,058,700 |
| 2015-08-27 | 301.37 | 308.50 | 299.36 | 304.49 | 304.49 | 2,498,600 |
| 2015-08-26 | 290.10 | 298.61 | 283.44 | 298.25 | 298.25 | 3,133,900 |
| 2015-08-25 | 292.64 | 298.00 | 281.50 | 281.75 | 281.75 | 3,744,200 |
| 2015-08-24 | 269.05 | 295.15 | 265.00 | 278.35 | 278.35 | 5,879,900 |
| 2015-08-21 | 305.71 | 312.65 | 295.46 | 295.64 | 295.64 | 3,659,400 |
| 2015-08-20 | 314.78 | 316.90 | 309.21 | 309.90 | 309.90 | 1,913,200 |
| 2015-08-19 | 311.99 | 319.35 | 310.50 | 315.82 | 315.82 | 1,832,400 |
| 2015-08-18 | 316.80 | 317.15 | 310.60 | 312.13 | 312.13 | 1,213,400 |
| 2015-08-17 | 313.49 | 317.66 | 311.02 | 316.08 | 316.08 | 1,607,200 |
| 2015-08-14 | 314.22 | 316.27 | 309.14 | 312.61 | 312.61 | 2,006,900 |
| 2015-08-13 | 316.97 | 319.48 | 313.75 | 313.91 | 313.91 | 1,316,300 |
| 2015-08-12 | 312.30 | 317.86 | 307.50 | 316.73 | 316.73 | 1,962,800 |
| 2015-08-11 | 312.56 | 319.12 | 311.72 | 314.85 | 314.85 | 1,851,600 |
| 2015-08-10 | 312.20 | 317.25 | 312.00 | 314.94 | 314.94 | 2,452,900 |
| 2015-08-07 | 316.00 | 316.19 | 305.66 | 309.00 | 309.00 | 4,259,000 |
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.