Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-10-31 | 147.99 | 155.18 | 146.52 | 154.27 | 154.27 | 2,235,300 |
| 2025-10-30 | 140.10 | 154.44 | 138.00 | 149.61 | 149.61 | 2,745,200 |
| 2025-10-29 | 148.82 | 149.91 | 147.54 | 147.86 | 147.86 | 2,450,700 |
| 2025-10-28 | 150.01 | 150.30 | 148.37 | 149.13 | 149.13 | 1,662,800 |
| 2025-10-27 | 150.07 | 150.92 | 148.10 | 150.43 | 150.43 | 1,214,300 |
| 2025-10-24 | 151.09 | 151.92 | 148.98 | 149.89 | 149.89 | 1,338,300 |
| 2025-10-23 | 148.99 | 150.29 | 147.57 | 150.08 | 150.08 | 1,246,000 |
| 2025-10-22 | 147.37 | 149.12 | 146.25 | 147.72 | 147.72 | 1,403,100 |
| 2025-10-21 | 146.09 | 147.89 | 144.29 | 146.22 | 146.22 | 895,000 |
| 2025-10-20 | 143.31 | 147.47 | 142.41 | 146.63 | 146.63 | 1,316,200 |
← NewerPage 5 of 5 · 250 trading days
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.