Biogen Inc. · NASDAQ:BIIB
Primecap Management Co reported a 10.20% stake in Biogen Inc. (Schedule 13G/A)
Event Sep 30, 2025 · Filed Nov 13, 2025
Primecap Management Co reported a 10.20% stake in Biogen Inc., 14,954,697 shares, as a passive investor on Sep 30, 2025. Filed Nov 13, 2025 (Schedule 13G/A).
- Stake
- 10.20%
- Shares
- 14,954,697
- Intent
- Passive
- What changed
- Stake changed
The filing in full
| Holder | Stake | Shares |
|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ | 10.20% | 14,954,697 |