Biogen Idec shares owned by Calamos Advisors
Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by Calamos Advisors
from 13F filings
Historical chart of Calamos Advisors investment in Biogen Idec
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Quarterly reported holdings in Biogen Idec by Calamos Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2013-03-31 | $2.5M | 13k | 192.91 |
| 2012-06-30 | $75M | 516k | 144.38 |
| 2012-03-31 | $65M | 517k | 125.97 |
| 2011-12-31 | $57M | 519k | 110.05 |