Biogen Idec shares owned by ProShare Advisors
Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by ProShare Advisors
from 13F filings
Historical chart of ProShare Advisors investment in Biogen Idec
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Quarterly reported holdings in Biogen Idec by ProShare Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2013-03-31 | $15M | 80k | 192.91 |
| 2012-12-31 | $13M | 88k | 146.68 |
| 2012-09-30 | $11M | 73k | 149.23 |
| 2012-06-30 | $12M | 82k | 144.38 |
| 2012-03-31 | $7.8M | 62k | 125.96 |
| 2011-12-31 | $9.2M | 83k | 110.05 |
| 2011-09-30 | $7.2M | 78k | 93.15 |
| 2011-03-31 | $7.6M | 104k | 73.39 |
| 2010-12-31 | $6.8M | 102k | 67.05 |