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RA CAPITAL MANAGEMENT, L.P.
> BIIB
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | BIOGEN INC. | BIIB | 532,892 | 0 | 151,794,286,000 | 4,225,833,000 | $284,850.00 |
| 12/31/2022 | BIOGEN INC. | BIIB | 532,892 | -404,657 | 147,568,453,000 | 147,318,128,000 | $276,920.00 |
| 09/30/2022 | BIOGEN INC. | BIIB | 937,549 | 210,525 | 250,325,000 | 102,056,000 | $267.00 |
| 06/30/2022 | BIOGEN INC. | BIIB | 727,024 | 0 | 148,269,000 | -4,842,000 | $203.94 |
| 03/31/2022 | BIOGEN INC. | BIIB | 727,024 | 727,024 | 153,111,000 | 153,111,000 | $210.60 |
| 09/30/2015 | BIOGEN INC. | BIIB | 0 | -2,600 | 0 | -1,050,000 | |
| 06/30/2015 | BIOGEN INC. | BIIB | 2,600 | 2,600 | 1,050,000 | 1,050,000 | $403.85 |
| 03/31/2015 | BIOGEN INC. | BIIB | 2,600 | 2,600 | 1,098,000 | 1,098,000 | $422.31 |
| 12/31/2014 | BIOGEN INC. | BIIB | 2,600 | 2,600 | 883,000 | 883,000 | $339.62 |
| 09/30/2014 | BIOGEN INC. | BIIB | 2,600 | 2,600 | 860,000 | 860,000 | $330.77 |
| 03/31/2011 | BIOGEN INC. | BIIB | 0 | -106,030 | 0 | -7,109,000 | |
| 12/31/2010 | BIOGEN INC. | BIIB | 106,030 | 106,030 | 7,109,000 | 7,109,000 | $67.05 |
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