Biogen Idec shares owned by Vanguard Portfolio Management
Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by Vanguard Portfolio Management
from 13F filings
Historical chart of Vanguard Portfolio Management investment in Biogen Idec
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Quarterly reported holdings in Biogen Idec by Vanguard Portfolio Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $1.2B | 6.5M | 183.33 |
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