Institutional investors hold a majority ownership of BIIB through the 89.52% 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 2016, these large investors purchased a net $199.2 thousand shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
OLD MUTUAL GLOBAL INVESTORS (UK)... Bought 104.2 Thousand shares of Biogen
SWEDBANK ROBUR FONDER AB Bought 88.7 Thousand shares of Biogen
STATE STREET GLOBAL ADVISORS LTD... Bought 80.7 Thousand shares of Biogen