Biogen Idec shares owned by BlackRock
Historical chart of BlackRock investment in Biogen Idec
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All positions including Biogen Idec held by BlackRock consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Biogen Idec by BlackRock
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $2.1B | 15M | 140.08 |
| 2025-06-30 | $1.7B | 14M | 125.59 |
| 2025-03-31 | $2.1B | 15M | 136.84 |
| 2024-12-31 | $2.4B | 16M | 152.92 |
| 2024-09-30 | $3.0B | 15M | 193.84 |