Institutional investors hold a majority ownership of ARNA through the 74.39% 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 2017, these large investors purchased a net $312.6 thousand shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
ALYESKA INVESTMENT GROUP LP Bought 538.2 Thousand shares of Arena Pharmaceuticals Inc
DEERFIELD MANAGEMENT COMPANY LP Bought 450.2 Thousand shares of Arena Pharmaceuticals Inc