BIIB
Biogen Inc. Common Stock
stockNASDAQ
At CloseOct 30, 2026 4:06:30 PM EDT
253.60USD+1.582%(+3.95)1,303,306
Pre-marketOct 30, 2026 10:29:58 AM EDT
253.78USD+1.654%(+4.13)
BIIB Stock Splits
| Ex-Date | Ratio | Shares | Type |
|---|---|---|---|
| 2001-01-18 | 3-for-1 | ×3 | Forward |
| 1999-12-21 | 2-for-1 | ×2 | Forward |