MAST THERAPEUTICS INC's ticker is MSTX and the CUSIP is 576314108. A total of 37 filers reported holding MAST THERAPEUTICS INC in Q4 2013. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2017 | $0 | – | 141 | 0.0% | 0.00% | – |
| Q4 2016 | $0 | – | 141 | 0.0% | 0.00% | – |
| Q3 2016 | $0 | – | 141 | 0.0% | 0.00% | – |
| Q2 2016 | $0 | – | 141 | -95.3% | 0.00% | – |
| Q1 2016 | $0 | -100.0% | 3,001 | 0.0% | 0.00% | – |
| Q4 2015 | $1,000 | -99.7% | 3,001 | -99.5% | 0.00% | – |
| Q3 2015 | $364,000 | -22.1% | 628,600 | -34.1% | 0.00% | – |
| Q2 2015 | $467,000 | +15.9% | 954,048 | +14.4% | 0.00% | – |
| Q1 2015 | $403,000 | -62.4% | 834,296 | -56.5% | 0.00% | -100.0% |
| Q4 2014 | $1,072,000 | +148.7% | 1,915,800 | +147.0% | 0.00% | – |
| Q3 2014 | $431,000 | -6.5% | 775,600 | +5.4% | 0.00% | – |
| Q2 2014 | $461,000 | +8.5% | 735,913 | +17.6% | 0.00% | – |
| Q1 2014 | $425,000 | +9.3% | 625,913 | -25.7% | 0.00% | – |
| Q4 2013 | $389,000 | +4.9% | 842,306 | -0.6% | 0.00% | – |
| Q3 2013 | $371,000 | – | 847,300 | – | 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% |