MAST THERAPEUTICS INC's ticker is MSTX and the CUSIP is 576314108. A total of 46 filers reported holding MAST THERAPEUTICS INC in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2016 | $635,000 | +71.6% | 1,350,600 | 0.0% | 0.00% | – |
| Q1 2016 | $370,000 | -77.3% | 1,350,600 | -65.1% | 0.00% | -100.0% |
| Q4 2015 | $1,627,000 | -72.4% | 3,870,877 | -61.9% | 0.00% | -66.7% |
| Q3 2015 | $5,889,000 | +0.6% | 10,153,000 | -15.0% | 0.00% | 0.0% |
| Q2 2015 | $5,854,000 | +1.0% | 11,946,100 | 0.0% | 0.00% | 0.0% |
| Q1 2015 | $5,794,000 | -13.4% | 11,946,100 | 0.0% | 0.00% | 0.0% |
| Q4 2014 | $6,690,000 | +0.5% | 11,946,100 | 0.0% | 0.00% | 0.0% |
| Q3 2014 | $6,654,000 | -11.4% | 11,946,100 | 0.0% | 0.00% | 0.0% |
| Q2 2014 | $7,514,000 | -7.5% | 11,946,100 | 0.0% | 0.00% | -25.0% |
| Q1 2014 | $8,123,000 | +45.8% | 11,946,100 | -0.8% | 0.00% | +33.3% |
| Q4 2013 | $5,570,000 | +5.3% | 12,046,100 | 0.0% | 0.00% | 0.0% |
| Q3 2013 | $5,288,000 | +12.1% | 12,046,100 | +9.6% | 0.00% | 0.0% |
| Q2 2013 | $4,716,000 | – | 10,987,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| JAY JEFFREY R | 5,800,000 | $2,490,000 | 1.97% |
| SABBY MANAGEMENT, LLC | 7,711,867 | $3,310,000 | 0.22% |
| Ancora Advisors LLC | 1,848,045 | $793,000 | 0.14% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 3,948,302 | $1,695,000 | 0.08% |
| Alyeska Investment Group, L.P. | 1,900,000 | $1,631,000 | 0.08% |
| Alyeska Investment Group, L.P. | 3,800,000 | $1,631,000 | 0.08% |
| SHEPHERD KAPLAN KROCHUK, LLC | 894,401 | $384,000 | 0.08% |
| PERKINS CAPITAL MANAGEMENT INC | 140,000 | $60,000 | 0.05% |
| Pine River Capital Management L.P. | 2,578,486 | $1,106,000 | 0.02% |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 794,900 | $341,000,000 | 0.01% |