Guru Ownership Trend
Guru Analysis for Biogen Inc. (BIIB)
Biogen Inc. (BIIB), a key player in the Healthcare sector, continues to attract institutional attention.
As of Q2 2026, a total of 11 Super Investors (Gurus) hold positions in the company, with a combined stake valued at approximately $669.43 M.
Top institutional holders include Cliff Asness and Ken Fisher.
Institutional sentiment is currently Bearish. This is evidenced by a $186.57 M net outflow during the quarter.
Recent activity highlights John Hussman who increased their stake by 233.3%. Conversely, Steven Cohen reduced exposure by 89.1%.
Key Holders
Top 5 by Value
Top 5 by Conviction
Recent Activity Breakdown (Q2 2026)
Guru Consensus (Q2 2026)
FAQs for Biogen Inc. (BIIB)
Major holders include Cliff Asness ($416.93 M), Ken Fisher ($73.03 M), Joel Greenblatt ($60.48 M). According to the latest reported data, 11 tracked investment managers collectively hold approximately 3.08 M shares.
According to the latest 13F reporting period, sentiment appears Bearish (Net Selling). There was a net outflow of $186.57 M, with 4 managers increasing positions and 8 managers reducing holdings.
During the most recent reporting period, 7 managers trimmed their positions, while 1 fully exited BIIB. The total reported sell value was $199.29 M.
Yes, 0 managers opened new positions in BIIB, and 4 increased their existing holdings. The total reported buy value was $12.73 M.
