Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-10-19 | 230.85 | 236.35 | 228.02 | 233.21 | 233.21 | 252 |
| 2026-10-16 | 235.99 | 239.41 | 231.80 | 234.71 | 234.71 | 1,129 |
| 2026-10-15 | 234.44 | 240.94 | 234.44 | 237.95 | 237.95 | 2,948 |
| 2026-10-14 | 231.97 | 233.79 | 225.15 | 231.60 | 231.60 | 1,001 |
| 2026-10-13 | 233.33 | 236.52 | 226.75 | 227.22 | 227.22 | 607 |
| 2026-10-12 | 228.23 | 236.43 | 225.71 | 234.00 | 234.00 | 1,074 |
| 2026-10-09 | 221.96 | 227.38 | 217.81 | 226.05 | 226.05 | 376 |
| 2026-10-08 | 218.56 | 225.62 | 216.45 | 219.82 | 219.82 | 1,441 |
| 2026-10-07 | 225.00 | 227.94 | 220.13 | 225.20 | 225.20 | 523 |
| 2026-10-06 | 220.51 | 226.09 | 218.00 | 221.16 | 221.16 | 517 |
| 2026-10-05 | 220.00 | 222.10 | 214.33 | 220.74 | 220.74 | 1,017 |
| 2026-10-02 | 225.69 | 225.87 | 219.66 | 220.13 | 220.13 | 884 |
| 2026-10-01 | 229.00 | 229.00 | 224.23 | 225.58 | 225.58 | 394 |
| 2026-09-30 | 228.21 | 229.41 | 221.76 | 228.12 | 228.12 | 579 |
| 2026-09-29 | 224.61 | 230.00 | 224.61 | 226.25 | 226.25 | 531 |
| 2026-09-28 | 230.00 | 230.23 | 225.00 | 228.41 | 228.41 | 1,153 |
| 2026-09-25 | 229.80 | 229.80 | 221.51 | 226.68 | 226.68 | 398 |
| 2026-09-24 | 228.10 | 230.00 | 223.00 | 226.56 | 226.56 | 761 |
| 2026-09-23 | 227.02 | 229.99 | 222.42 | 223.74 | 223.74 | 253 |
| 2026-09-22 | 219.07 | 226.50 | 214.78 | 225.48 | 225.48 | 310 |
| 2026-09-21 | 208.00 | 221.64 | 208.00 | 220.93 | 220.93 | 525 |
| 2026-09-18 | 220.83 | 220.83 | 216.96 | 217.69 | 217.69 | 841 |
| 2026-09-17 | 214.49 | 218.52 | 214.49 | 217.55 | 217.55 | 74 |
| 2026-09-16 | 216.17 | 218.37 | 210.58 | 217.00 | 217.00 | 173 |
| 2026-09-15 | 217.33 | 222.34 | 213.92 | 216.12 | 216.12 | 398 |
| 2026-09-14 | 212.36 | 222.00 | 212.36 | 217.82 | 217.82 | 98 |
| 2026-09-11 | 213.15 | 218.97 | 213.15 | 218.96 | 218.96 | 280 |
| 2026-09-10 | 207.46 | 216.23 | 207.46 | 215.08 | 215.08 | 515 |
| 2026-09-09 | 211.30 | 215.57 | 209.00 | 211.89 | 211.89 | 3,537 |
| 2026-09-08 | 227.00 | 227.00 | 210.51 | 213.67 | 213.67 | 1,813 |
| 2026-09-04 | 224.51 | 227.70 | 219.00 | 220.56 | 220.56 | 168 |
| 2026-09-03 | 221.50 | 226.94 | 218.64 | 224.26 | 224.26 | 259 |
| 2026-09-02 | 216.00 | 224.54 | 209.55 | 224.01 | 224.01 | 450 |
| 2026-09-01 | 222.72 | 222.72 | 213.44 | 214.74 | 214.74 | 342 |
| 2026-08-31 | 216.50 | 224.68 | 213.95 | 218.04 | 218.04 | 70 |
| 2026-08-28 | 215.13 | 224.58 | 215.13 | 217.27 | 217.27 | 633 |
| 2026-08-27 | 221.89 | 224.79 | 217.87 | 221.20 | 221.20 | 311 |
| 2026-08-26 | 214.00 | 224.19 | 214.00 | 221.51 | 221.51 | 125 |
| 2026-08-25 | 217.00 | 222.39 | 215.00 | 222.18 | 222.18 | 216 |
| 2026-08-24 | 219.96 | 223.40 | 214.00 | 216.25 | 216.25 | 1,201 |
| 2026-08-21 | 215.19 | 219.25 | 210.70 | 217.49 | 217.49 | 368 |
| 2026-08-20 | 224.30 | 224.30 | 216.64 | 216.64 | 216.64 | 946 |
| 2026-08-19 | 212.55 | 220.42 | 206.94 | 218.99 | 218.99 | 1,728 |
| 2026-08-18 | 205.48 | 213.53 | 205.48 | 213.35 | 213.35 | 134 |
| 2026-08-17 | 215.04 | 215.04 | 204.58 | 209.32 | 209.32 | 419 |
| 2026-08-14 | 204.96 | 214.74 | 204.96 | 209.91 | 209.91 | 266 |
| 2026-08-13 | 208.04 | 215.88 | 208.04 | 210.65 | 210.65 | 207 |
| 2026-08-12 | 210.61 | 210.61 | 201.00 | 206.50 | 206.50 | 142 |
| 2026-08-11 | 205.91 | 210.61 | 201.43 | 204.85 | 204.85 | 670 |
| 2026-08-10 | 210.39 | 217.75 | 202.62 | 206.91 | 206.91 | 680 |
| 2026-08-07 | 203.00 | 209.00 | 203.00 | 206.34 | 206.34 | 177 |
| 2026-08-06 | 209.95 | 211.00 | 202.67 | 204.59 | 204.59 | 408 |
| 2026-08-05 | 208.45 | 219.48 | 207.00 | 208.17 | 208.17 | 196 |
| 2026-08-04 | 201.81 | 207.85 | 196.96 | 207.30 | 207.30 | 405 |
| 2026-08-03 | 201.45 | 206.27 | 196.65 | 200.18 | 200.18 | 769 |
| 2026-07-31 | 210.00 | 210.00 | 202.57 | 205.50 | 205.50 | 760 |
| 2026-07-30 | 214.09 | 214.09 | 203.00 | 206.84 | 206.84 | 535 |
| 2026-07-29 | 210.00 | 217.44 | 200.00 | 208.12 | 208.12 | 1,762 |
| 2026-07-28 | 200.01 | 204.54 | 200.01 | 202.17 | 202.17 | 387 |
| 2026-07-27 | 204.50 | 205.00 | 200.26 | 201.63 | 201.63 | 100 |
Page 1 of 21 · 1,248 trading daysOlder →
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.