Mast Therapeutics Inc (NYSE MKT LLC:MSTX)

Data as of Apr 16
 -0.0099 / -1.77%
Today’s Change
Today|||52-Week Range
Institutional investors control 20.81% of the outstanding shares in MSTX. This represents a greater percentage of ownership than at almost any other company in the Biotechnology industry.
Other institutional7.18%
Mutual fund holders13.63%
Individual stakeholders0.38%

Largest Quarterly Institutional

Latest Institutional Activity

3/31/2014CREATIVE PLANNING, INC.  Sold 8.0 Thousand shares of Mast Therapeutics Inc

Top 10 Owners of Mast Therapeutics Inc

Total value ($)Shares
bought / sold
Franklin Advisers, Inc.10.60%12,046,1008,191,34800.00%
The Vanguard Group, Inc.1.56%1,774,7441,206,826-1,416-0.08%
Renaissance Technologies LLC1.35%1,535,0001,043,800+1,169,500+319.97%
Deerfield Management Co. LP1.29%1,466,249997,049-1,167,972-44.34%
Great Point Partners LLC1.14%1,294,934880,555-4,147,466-76.21%
Ancora Advisors LLC1.09%1,234,599839,527-613,446-33.19%
Morgan Stanley & Co. LLC0.88%998,961679,293+158,687+18.89%
Deutsche Bank Securities, Inc.0.55%625,606425,412+25,606+4.27%
GRT Capital Partners LLC0.47%532,776362,288-70,000-11.61%
Columbia Management Investment Ad...0.27%306,453208,388-344,325-52.91%

Top 10 Mutual Funds Holding Mast Therapeutics Inc

Mutual fundStakeShares
Total value ($)Shares
bought / sold
FTIF SICAV - Franklin Biotechnolo...5.80%6,592,6004,482,96800.00%
Franklin Biotechnology Discovery ...4.80%5,453,5003,708,38000.00%
Vanguard Total Stock Market Index...1.34%1,516,8041,031,427+258,688+20.56%
Vanguard Extended Market Index Fu...0.66%752,978512,02500.00%
Fidelity Spartan Extended Market ...0.47%531,478361,405+368,543+226.19%
Vanguard Balanced Index Fund0.17%195,000132,60000.00%
Vanguard Institutional Total Stoc...0.07%81,95355,72800.00%
DFA US Small Cap Portfolio0.07%76,90052,29200.00%
DFA US Micro Cap Portfolio0.06%72,43849,25800.00%
Auriga Investors - Montserrat Glo...0.04%50,00034,000+50,000--

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