Biogen Idec shares owned by Pioneer Investment Management
Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by Pioneer Investment Management
from 13F filings
Historical chart of Pioneer Investment Management investment in Biogen Idec
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Quarterly reported holdings in Biogen Idec by Pioneer Investment Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2012-12-31 | $302k | 2.1k | 146.82 |
| 2012-06-30 | $351k | 2.4k | 144.27 |
| 2011-12-31 | $325k | 2.8k | 118.01 |
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