Mast Therapeutics Inc (NYSE MKT LLC:MSTX)

During the Trading Day
0.46 +0.0099 / +2.20%
Data as of 4:01pm ET
Day’s Change
During After-Hours   Switch to standard view »
0.441 -0.019 / -4.13%
 
Volume: 300.00
Institutional investors control 19.25% 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 September 2014, these large investors purchased a net $5.3 million shares.
Mutual fund holders9.79%
Other institutional9.46%
Individual stakeholders0.27%

Largest Quarterly Institutional
Transactions

Latest Institutional Activity

11/06/2014SABBY CAPITAL LLC  Bought 4.7 Million shares of Mast Therapeutics Inc
9/30/2014PINE RIVER CAPITAL MANAGEMENT LP  Bought 625.0 Thousand shares of Mast Therapeutics Inc
9/30/2014KCG AMERICAS LLC  Bought 211.5 Thousand shares of Mast Therapeutics Inc

Top 10 Owners of Mast Therapeutics Inc

StockholderStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Franklin Advisers, Inc.7.49%11,946,1005,554,93700.00%
Sabby Capital LLC5.55%8,854,2004,117,203+4,748,700+115.67%
Baker Bros. Advisors LP1.88%3,000,0001,395,00000.00%
The Vanguard Group, Inc.1.76%2,810,7911,307,018+191,654+7.32%
Pine River Capital Management LP0.43%687,500319,688+625,000+1,000.00%
Deutsche Bank Securities, Inc.0.39%625,600290,90400.00%
GRT Capital Partners LLC0.37%581,886270,577+69,410+13.54%
Geode Capital Management LLC0.35%560,868260,80400.00%
KCG Americas LLC0.20%314,505146,245+211,500+205.33%
Dimensional Fund Advisors LP0.15%233,685108,664-31,471-11.87%

Top 10 Mutual Funds Holding Mast Therapeutics Inc

Mutual fundStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
FTIF SICAV - Franklin Biotechnolo...4.13%6,592,6003,065,55900.00%
Franklin Biotechnology Discovery ...3.36%5,353,5002,489,37800.00%
Vanguard Total Stock Market Index...1.08%1,726,538802,840+81,564+4.96%
Vanguard Extended Market Index Fu...0.55%876,000407,340+4,032+0.46%
Fidelity Spartan Extended Market ...0.33%531,478247,13700.00%
Vanguard Balanced Index Fund0.08%125,55258,38200.00%
Vanguard Institutional Total Stoc...0.05%81,95338,10800.00%
DFA US Small Cap Portfolio0.05%76,90035,75900.00%
DFA US Micro Cap Portfolio0.05%72,43833,68400.00%
Wilshire Micro Cap ETF0.02%33,44015,550-15,596-31.81%

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