Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2018-09-10 | 342.69 | 342.85 | 337.53 | 340.25 | 340.25 | 1,105,500 |
| 2018-09-07 | 340.00 | 341.69 | 336.27 | 339.65 | 339.65 | 997,600 |
| 2018-09-06 | 345.44 | 346.99 | 339.61 | 341.34 | 341.34 | 833,800 |
| 2018-09-05 | 344.37 | 349.43 | 342.75 | 346.60 | 346.60 | 1,039,000 |
| 2018-09-04 | 353.85 | 355.00 | 341.61 | 346.72 | 346.72 | 1,296,800 |
| 2018-08-31 | 351.26 | 354.13 | 350.02 | 353.49 | 353.49 | 867,200 |
| 2018-08-30 | 350.15 | 355.94 | 348.37 | 352.74 | 352.74 | 875,900 |
| 2018-08-29 | 347.16 | 352.02 | 346.16 | 349.99 | 349.99 | 1,291,300 |
| 2018-08-28 | 344.42 | 348.00 | 341.87 | 345.53 | 345.53 | 1,125,900 |
| 2018-08-27 | 343.30 | 343.32 | 340.42 | 342.70 | 342.70 | 704,600 |
| 2018-08-24 | 343.03 | 343.03 | 339.77 | 342.33 | 342.33 | 620,000 |
| 2018-08-23 | 344.97 | 344.97 | 339.24 | 341.89 | 341.89 | 750,000 |
| 2018-08-22 | 342.65 | 346.47 | 342.00 | 344.98 | 344.98 | 597,500 |
| 2018-08-21 | 345.70 | 346.39 | 343.00 | 343.28 | 343.28 | 625,200 |
| 2018-08-20 | 347.56 | 347.56 | 341.79 | 344.11 | 344.11 | 821,700 |
| 2018-08-17 | 341.00 | 346.83 | 339.13 | 345.22 | 345.22 | 917,300 |
| 2018-08-16 | 342.08 | 345.33 | 340.46 | 342.93 | 342.93 | 882,500 |
| 2018-08-15 | 341.00 | 343.92 | 337.31 | 340.72 | 340.72 | 953,200 |
| 2018-08-14 | 342.26 | 347.76 | 341.59 | 343.63 | 343.63 | 883,400 |
| 2018-08-13 | 343.79 | 344.37 | 339.22 | 340.79 | 340.79 | 1,077,700 |
| 2018-08-10 | 344.93 | 347.40 | 340.34 | 343.00 | 343.00 | 1,359,100 |
| 2018-08-09 | 350.88 | 352.25 | 345.78 | 346.90 | 346.90 | 1,322,300 |
| 2018-08-08 | 348.05 | 352.33 | 347.97 | 350.09 | 350.09 | 969,200 |
| 2018-08-07 | 345.64 | 352.46 | 344.00 | 350.10 | 350.10 | 1,614,900 |
| 2018-08-06 | 343.04 | 344.22 | 340.33 | 341.17 | 341.17 | 1,034,200 |
| 2018-08-03 | 350.10 | 350.57 | 342.27 | 344.21 | 344.21 | 1,164,400 |
| 2018-08-02 | 342.22 | 350.00 | 340.81 | 347.93 | 347.93 | 1,414,600 |
| 2018-08-01 | 335.84 | 344.74 | 334.38 | 344.06 | 344.06 | 1,688,400 |
| 2018-07-31 | 332.17 | 338.74 | 330.90 | 334.37 | 334.37 | 2,052,700 |
| 2018-07-30 | 340.52 | 341.37 | 330.96 | 331.46 | 331.46 | 2,408,400 |
| 2018-07-27 | 346.20 | 346.47 | 339.11 | 340.40 | 340.40 | 2,426,100 |
| 2018-07-26 | 340.50 | 353.41 | 337.00 | 344.74 | 344.74 | 4,924,000 |
| 2018-07-25 | 374.10 | 388.67 | 372.94 | 383.83 | 383.83 | 4,686,600 |
| 2018-07-24 | 380.00 | 383.00 | 366.01 | 372.84 | 372.84 | 4,191,700 |
| 2018-07-23 | 358.71 | 362.22 | 355.88 | 358.13 | 358.13 | 1,884,600 |
| 2018-07-20 | 358.35 | 360.50 | 356.53 | 358.71 | 358.71 | 1,666,300 |
| 2018-07-19 | 356.20 | 360.27 | 356.04 | 358.11 | 358.11 | 1,650,600 |
| 2018-07-18 | 353.81 | 358.75 | 350.28 | 358.51 | 358.51 | 1,399,800 |
| 2018-07-17 | 352.20 | 356.02 | 351.52 | 354.98 | 354.98 | 1,486,100 |
| 2018-07-16 | 348.80 | 353.20 | 346.10 | 353.03 | 353.03 | 1,460,100 |
| 2018-07-13 | 347.01 | 351.67 | 344.05 | 348.48 | 348.48 | 1,168,600 |
| 2018-07-12 | 347.03 | 348.07 | 343.55 | 347.66 | 347.66 | 1,304,400 |
| 2018-07-11 | 341.84 | 346.20 | 340.00 | 344.10 | 344.10 | 1,786,600 |
| 2018-07-10 | 347.54 | 347.90 | 339.15 | 344.82 | 344.82 | 3,425,600 |
| 2018-07-09 | 357.93 | 360.35 | 347.51 | 354.00 | 354.00 | 3,872,800 |
| 2018-07-06 | 347.05 | 367.89 | 340.55 | 357.48 | 357.48 | 12,857,000 |
| 2018-07-05 | 295.77 | 299.73 | 294.78 | 298.81 | 298.81 | 746,300 |
| 2018-07-03 | 296.06 | 296.92 | 292.64 | 293.51 | 293.51 | 452,900 |
| 2018-07-02 | 290.30 | 296.12 | 288.13 | 295.77 | 295.77 | 1,116,400 |
| 2018-06-29 | 290.08 | 292.68 | 287.81 | 290.24 | 290.24 | 1,394,300 |
| 2018-06-28 | 289.32 | 290.33 | 285.32 | 288.75 | 288.75 | 1,405,900 |
| 2018-06-27 | 292.20 | 293.48 | 287.81 | 287.93 | 287.93 | 1,116,200 |
| 2018-06-26 | 291.68 | 293.57 | 288.45 | 291.92 | 291.92 | 943,300 |
| 2018-06-25 | 295.92 | 297.15 | 289.20 | 292.19 | 292.19 | 1,685,500 |
| 2018-06-22 | 298.00 | 298.38 | 295.00 | 296.04 | 296.04 | 1,334,600 |
| 2018-06-21 | 296.21 | 298.05 | 294.63 | 297.34 | 297.34 | 1,206,700 |
| 2018-06-20 | 293.10 | 298.44 | 292.37 | 296.86 | 296.86 | 1,273,600 |
| 2018-06-19 | 286.14 | 296.01 | 286.04 | 292.04 | 292.04 | 1,706,200 |
| 2018-06-18 | 294.05 | 294.97 | 283.24 | 289.12 | 289.12 | 3,409,000 |
| 2018-06-15 | 306.05 | 309.50 | 303.42 | 305.03 | 305.03 | 1,882,400 |
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.