Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-07-29 | 210.50 | 218.59 | 206.27 | 209.23 | 209.23 | 2,400,100 |
| 2026-07-28 | 201.01 | 207.72 | 199.40 | 205.61 | 205.61 | 1,831,900 |
| 2026-07-27 | 202.75 | 204.47 | 199.83 | 200.14 | 200.14 | 762,600 |
| 2026-07-24 | 202.24 | 203.30 | 200.04 | 202.19 | 202.19 | 596,300 |
| 2026-07-23 | 197.04 | 203.60 | 196.92 | 200.62 | 200.62 | 1,032,100 |
← NewerPage 2 of 2 · 65 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.