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This is the historical short interest of Mast Therapeutics Inc, as measured by the Short Percentage Of Float.
This the Institutional Ownership History of Mast Therapeutics IncPeter Lynch prefers to buy companies with low institutional ownership.
This is the historical insider ownership of Mast Therapeutics Inc. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.
|Holder||Position||Shares||% of Shares |
|Evan M. Levine||N/A||4,395,000||3.42%||2008-02-08|
|Dr. M. Ross Johnson,PhD||N/A||1,621,779||1.26%||2006-12-21|
|R. Martin Emanuele,PhD||N/A||294,598||0.23%||2013-05-30|
|David A. Ramsay||N/A||100,000||less than 0.1%||2012-05-14|
|Dr. James A. Merritt,M.D.||N/A||35,000||less than 0.1%||2007-12-14|
|Brian M. Culley,M.S.||N/A||34,500||less than 0.1%||2012-03-14|
|Dr. Michael M. Goldberg,M.D.||N/A||26,000||less than 0.1%||2006-10-15|
|Ms. Carrie E. McQueen||N/A||25,000||less than 0.1%||2005-06-15|
|Dr. Joan M. Robbins,PhD||N/A||10,000||less than 0.1%||2008-05-13|
|Dr. Mark J. Pykett,PhD,V.M.D.||N/A||8,000||less than 0.1%||2004-05-24|
|Holder||Shares||Report Date||% of Shares |
|% of Total |
|Franklin Advisers, Inc.||11,946,100||2014-09-30||9.37||0.01||6,654,000|
|Sabby Management LLC||8,854,200||2014-11-06||6.89||0.00||4,505,902|
|Franklin Biotechnology Discovery||6,592,600||2014-10-31||5.13||0.13||3,354,974|
|Franklin Biotechnology Discovery Fund||5,353,500||2014-12-31||4.17||0.17||2,997,960|
|Baker Bros Advisors LLC||3,000,000||2014-09-30||2.35||0.02||1,671,000|
|Vanguard Group, Inc.||2,810,791||2014-09-30||2.20||0.00||1,566,000|
|Mpm Asset Management, LLC||2,551,851||2014-09-30||2.01||0.47||1,429,000|
|Vanguard Total Stock Mkt Idx||2,262,298||2014-12-31||1.76||0.00||1,266,887|
|Deerfield Management Co||1,466,249||2013-12-31||1.43||0.00||677,994|
|Vanguard Extended Market Index Fund||907,900||2014-12-31||0.71||0.00||508,424|