Institutional investors hold a majority ownership of ACHN through the 82.81% 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 2014, these large investors purchased a net $1.5 million shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
FIDELITY MANAGEMENT & RESEARCH C... Bought 4.3 Million shares of Achillion Pharmaceuticals...