Biogen Inc. (BIIB)

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Hedge Fund Holdings
Filing Period:
Last update:
No. Hedge Fund Shares Value Activity % Port
1.
OrbiMed Advisors

Samuel Isaly

827,600 $214,158,052 +49% 4.27%
2. 643,000 $166,389,110 25.64%
3.
RA Capital Management

Peter Kolchinsky

532,892 $137,896,463 2.15%
4. 422,680 $109,376,904 -5% 0.72%
5.
Palo Alto Investors

William Leland Edwards

380,417 $98,440,507 -1% 8.86%