Mast Therapeutics, Inc. (MSTX)

[LaJollaCA]

Date
Hi
Lo
Total Volume
Short Volume
% Short Vol
Date Hi Lo Total Volume Short Volume % Short Vol
Wed, Feb 12, 2014 0.88 0.8139 2193711 357486 17%
Tue, Feb 11, 2014 0.8473 0.8 3143054 133002 5%
Mon, Feb 10, 2014 0.91 0.83 3778036 358150 10%
Fri, Feb 7, 2014 0.859 0.8155 1813038 306376 17%
Thu, Feb 6, 2014 0.8489 0.8002 1223289 323954 27%
Wed, Feb 5, 2014 0.865 0.81 1071790 204467 20%
Tue, Feb 4, 2014 0.879 0.77 3223901 545519 17%
Mon, Feb 3, 2014 0.91 0.82 2499899 166727 7%
Fri, Jan 31, 2014 0.92 0.835 3520339 817375 24%
Thu, Jan 30, 2014 0.88 0.81 1886106 200491 11%
Wed, Jan 29, 2014 0.8516 0.8 2736041 274382 11%
Tue, Jan 28, 2014 0.9337 0.8353 3195246 491403 10%
Mon, Jan 27, 2014 0.9898 0.82 7062702 665588 5%
Fri, Jan 24, 2014 1.03 0.926 5425408 498838 7%
Thu, Jan 23, 2014 1.06 0.92 7481191 803309 8%