Institutional investors hold a majority ownership of BIIB through the 91.21% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Biotechnology industry. Last, during the quarter ended June 2017, these large investors purchased a net $600.6 thousand shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
ASSENAGON ASSET MANAGEMENT SA (G... Bought 394.4 Thousand shares of Biogen