Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-01-29 | 175.00 | 176.60 | 172.08 | 176.09 | 176.09 | 353 |
| 2026-01-28 | 174.00 | 176.31 | 170.90 | 171.95 | 171.95 | 316 |
| 2026-01-27 | 173.13 | 175.67 | 170.21 | 174.14 | 174.14 | 1,801 |
| 2026-01-26 | 171.68 | 173.80 | 170.64 | 172.68 | 172.68 | 333 |
| 2026-01-23 | 173.87 | 177.00 | 170.31 | 170.48 | 170.48 | 775 |
| 2026-01-22 | 169.01 | 176.98 | 169.01 | 174.64 | 174.64 | 1,471 |
| 2026-01-21 | 164.53 | 170.74 | 164.53 | 170.69 | 170.69 | 1,657 |
| 2026-01-20 | 162.00 | 164.96 | 160.01 | 162.27 | 162.27 | 1,010 |
| 2026-01-16 | 167.98 | 169.34 | 164.40 | 164.40 | 164.40 | 1,007 |
| 2026-01-15 | 170.25 | 173.70 | 167.05 | 168.58 | 168.58 | 661 |
| 2026-01-14 | 178.00 | 178.00 | 165.71 | 169.64 | 169.64 | 5,455 |
| 2026-01-13 | 185.20 | 186.73 | 179.92 | 180.31 | 180.31 | 914 |
| 2026-01-12 | 187.78 | 188.65 | 182.84 | 184.14 | 184.14 | 590 |
| 2026-01-09 | 186.34 | 190.01 | 186.11 | 188.31 | 188.31 | 1,077 |
| 2026-01-08 | 186.90 | 187.49 | 183.96 | 183.96 | 183.96 | 723 |
| 2026-01-07 | 182.73 | 186.20 | 181.50 | 184.74 | 184.74 | 336 |
| 2026-01-06 | 172.56 | 181.92 | 172.56 | 180.29 | 180.29 | 1,416 |
| 2026-01-05 | 178.48 | 180.17 | 171.56 | 174.28 | 174.28 | 875 |
| 2026-01-02 | 176.93 | 177.16 | 174.46 | 175.93 | 175.93 | 295 |
| 2025-12-31 | 175.81 | 177.40 | 174.46 | 176.93 | 176.93 | 217 |
| 2025-12-30 | 177.06 | 178.29 | 174.47 | 176.59 | 176.59 | 277 |
| 2025-12-29 | 173.73 | 178.42 | 173.73 | 176.84 | 176.84 | 473 |
| 2025-12-24 | 176.41 | 176.94 | 173.58 | 176.76 | 176.76 | 471 |
| 2025-12-23 | 176.99 | 176.99 | 173.82 | 174.35 | 174.35 | 366 |
| 2025-12-22 | 175.00 | 176.88 | 174.00 | 175.36 | 175.36 | 1,001 |
| 2025-12-19 | 168.63 | 174.83 | 168.63 | 174.24 | 174.24 | 626 |
| 2025-12-18 | 169.31 | 172.51 | 168.69 | 170.95 | 170.95 | 423 |
| 2025-12-17 | 171.17 | 172.78 | 169.54 | 172.52 | 172.52 | 208 |
| 2025-12-16 | 176.60 | 176.60 | 169.81 | 170.46 | 170.46 | 1,542 |
| 2025-12-15 | 173.96 | 175.18 | 169.89 | 174.67 | 174.67 | 1,433 |
| 2025-12-12 | 173.60 | 174.86 | 171.48 | 173.92 | 173.92 | 525 |
| 2025-12-11 | 178.00 | 180.25 | 173.90 | 175.70 | 175.70 | 635 |
| 2025-12-10 | 173.11 | 176.00 | 168.00 | 175.10 | 175.10 | 2,552 |
| 2025-12-09 | 178.90 | 181.20 | 177.67 | 178.08 | 178.08 | 644 |
| 2025-12-08 | 180.82 | 182.60 | 179.28 | 180.31 | 180.31 | 1,503 |
| 2025-12-05 | 179.68 | 183.00 | 179.68 | 182.66 | 182.66 | 286 |
| 2025-12-04 | 183.00 | 183.41 | 177.58 | 180.99 | 180.99 | 263 |
| 2025-12-03 | 177.39 | 182.49 | 177.39 | 181.53 | 181.53 | 1,293 |
| 2025-12-02 | 177.29 | 179.49 | 174.67 | 178.56 | 178.56 | 1,799 |
| 2025-12-01 | 180.71 | 182.09 | 176.39 | 177.44 | 177.44 | 1,100 |
| 2025-11-28 | 182.46 | 183.07 | 180.64 | 182.16 | 182.16 | 901 |
| 2025-11-26 | 182.13 | 183.88 | 180.96 | 182.79 | 182.79 | 903 |
| 2025-11-25 | 177.05 | 182.80 | 175.59 | 182.07 | 182.07 | 1,920 |
| 2025-11-24 | 169.84 | 185.82 | 169.77 | 176.28 | 176.28 | 5,279 |
| 2025-11-21 | 168.22 | 175.46 | 166.37 | 175.12 | 175.12 | 1,744 |
| 2025-11-20 | 167.27 | 170.70 | 165.92 | 169.32 | 169.32 | 1,187 |
| 2025-11-19 | 168.52 | 170.84 | 166.28 | 166.84 | 166.84 | 553 |
| 2025-11-18 | 164.41 | 170.50 | 162.12 | 170.29 | 170.29 | 971 |
| 2025-11-17 | 168.61 | 168.61 | 163.66 | 165.66 | 165.66 | 1,143 |
| 2025-11-14 | 164.18 | 168.65 | 162.88 | 167.28 | 167.28 | 1,345 |
| 2025-11-13 | 163.65 | 167.53 | 161.04 | 165.95 | 165.95 | 3,040 |
| 2025-11-12 | 159.00 | 162.50 | 158.46 | 160.79 | 160.79 | 1,501 |
| 2025-11-11 | 156.85 | 158.49 | 154.30 | 157.33 | 157.33 | 1,084 |
| 2025-11-10 | 155.09 | 156.00 | 153.93 | 154.53 | 154.53 | 795 |
| 2025-11-07 | 151.85 | 155.73 | 151.72 | 153.10 | 153.10 | 824 |
| 2025-11-06 | 155.40 | 157.84 | 153.95 | 154.70 | 154.70 | 1,744 |
| 2025-11-05 | 149.66 | 152.38 | 149.00 | 152.32 | 152.32 | 469 |
| 2025-11-04 | 150.05 | 152.04 | 149.63 | 151.88 | 151.88 | 306 |
| 2025-11-03 | 154.72 | 155.39 | 149.61 | 150.16 | 150.16 | 1,027 |
| 2025-10-31 | 147.99 | 154.54 | 147.28 | 154.54 | 154.54 | 4,153 |
Stock splits
No stock splits on record.
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.