Institutional investors control 28.10% 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 December 2014, these large investors purchased a net $22.6 million shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
CREATIVE PLANNING, INC. Bought 23.0 Thousand shares of Mast Therapeutics Inc