Mast Therapeutics, Inc. (MSTX)

[$$$eeker]

$MSTX Top Institutional Holders
Holder Shares % Out Value* Reported
Baker Brothers Advisors, LLC 3,000,000 2.63 2,040,000 Mar 31, 2014
Vanguard Group, Inc. (The) 2,610,237 2.29 1,774,961 Mar 31, 2014
Franklin Resources, Inc 11,946,100 10.47 8,123,348 Mar 31, 2014
Morgan Stanley 884,099 0.77 601,187 Mar 31, 2014
Deutsche Bank Aktiengesellschaft 625,600 0.55 425,408 Mar 31, 2014
Geode Capital Management, LLC 560,868 0.49 381,390 Mar 31, 2014
MPM Asset Management, LLC 524,853 0.46 356,900 Mar 31, 2014
GRT Capital Partners, LLC 512,476 0.45 348,483 Mar 31, 2014
Iguana Healthcare Management, LLC 500,000 0.44 340,000 Mar 31, 2014
Dimensional Fund Advisors LP 267,698 0.23 182,034 Mar 31, 2014

That the Baker Bros own this gives me confidence. If you don't like this stock then move on, we don't need you to babysit us.