Institutional investors hold a majority ownership of BIIB through the 92.36% 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 2015, these large investors purchased a net $5.1 million shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
ETHENEA INDEPENDENT INVESTORS SA Bought 240.0 Thousand shares of Biogen
STATE STREET GLOBAL ADVISORS LTD... Bought 58.1 Thousand shares of Biogen