MAST THERAPEUTICS INC's ticker is MSTX and the CUSIP is 576314108. A total of 37 filers reported holding MAST THERAPEUTICS INC in Q1 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2016 | $1,199,000 | +74.0% | 2,551,851 | 0.0% | 0.39% | +81.8% |
| Q1 2016 | $689,000 | -35.7% | 2,551,851 | 0.0% | 0.21% | +12.0% |
| Q4 2015 | $1,072,000 | -27.6% | 2,551,851 | 0.0% | 0.19% | -16.2% |
| Q3 2015 | $1,480,000 | +18.4% | 2,551,851 | 0.0% | 0.23% | +9.1% |
| Q2 2015 | $1,250,000 | 0.0% | 2,551,851 | 0.0% | 0.21% | -21.7% |
| Q1 2015 | $1,250,000 | -12.5% | 2,551,851 | 0.0% | 0.27% | -15.8% |
| Q4 2014 | $1,429,000 | 0.0% | 2,551,851 | 0.0% | 0.32% | -32.3% |
| Q3 2014 | $1,429,000 | +331.7% | 2,551,851 | +386.2% | 0.47% | +321.6% |
| Q2 2014 | $331,000 | -8.6% | 524,853 | 0.0% | 0.11% | -27.5% |
| Q1 2014 | $362,000 | – | 524,853 | – | 0.15% | – |
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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% |