MAST THERAPEUTICS INC's ticker is MSTX and the CUSIP is 576314108. A total of 38 filers reported holding MAST THERAPEUTICS INC in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $149,000 | -21.2% | 1,719,932 | 0.0% | 0.00% | – |
| Q3 2016 | $189,000 | +68.8% | 1,719,932 | +618.9% | 0.00% | – |
| Q2 2016 | $112,000 | +72.3% | 239,234 | 0.0% | 0.00% | – |
| Q1 2016 | $65,000 | -35.6% | 239,234 | 0.0% | 0.00% | – |
| Q4 2015 | $101,000 | -27.3% | 239,234 | 0.0% | 0.00% | – |
| Q3 2015 | $139,000 | +7.8% | 239,234 | -8.8% | 0.00% | – |
| Q2 2015 | $129,000 | +222.5% | 262,264 | +219.0% | 0.00% | – |
| Q1 2015 | $40,000 | +233.3% | 82,226 | +270.1% | 0.00% | – |
| Q4 2014 | $12,000 | -64.7% | 22,218 | -69.8% | 0.00% | – |
| Q4 2013 | $34,000 | +6.2% | 73,494 | 0.0% | 0.00% | – |
| Q3 2013 | $32,000 | 0.0% | 73,494 | 0.0% | 0.00% | – |
| Q2 2013 | $32,000 | – | 73,494 | – | 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% |