Institutional investors hold a majority ownership of BIIB through the 94.52% 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 September 2013, these large investors purchased a net $526.3 thousand shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
FIDELITY MANAGEMENT & RESEARCH C... Bought 2.2 Million shares of Biogen Idec Inc
DEUTSCHE BANK INVESTMENT MANAGEM... Bought 1.0 Million shares of Biogen Idec Inc
OPPENHEIMERFUNDS, INC. Bought 532.9 Thousand shares of Biogen Idec Inc