Institutional investors control 12.98% of the outstanding shares in MSTX. This represents a greater percentage of ownership than at almost any other company in the Biotechnology industry. Additionally, during the quarter ended March 2016, these large investors purchased a net $2.7 million shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
SABBY CAPITAL LLC Bought 3.9 Million shares of Mast Therapeutics Inc
THE VANGUARD GROUP, INC. Bought 719.1 Thousand shares of Mast Therapeutics Inc