MAST THERAPEUTICS INC's ticker is MSTX and the CUSIP is 576314108. A total of 39 filers reported holding MAST THERAPEUTICS INC in Q3 2013. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2013 | $12,000 | – | 27,700 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| MPM ASSET MANAGEMENT LLC | 2,551,851 | $1,199,000 | 0.39% |
| BVF INC/IL | 3,696,961 | $1,738,000 | 0.37% |
| PERKINS CAPITAL MANAGEMENT INC | 559,750 | $263,000 | 0.30% |
| Belmont Global Advisors, Inc. | 150,000 | $70,000 | 0.07% |
| SHEPHERD KAPLAN KROCHUK, LLC | 449,084 | $211,000 | 0.05% |
| Baker Brothers Advisors | 3,868,026 | $1,818,000 | 0.02% |
| Alyeska Investment Group, L.P. | 2,969,381 | $1,396,000 | 0.01% |
| LAU ASSOCIATES LLC | 20,000 | $9,000 | 0.01% |
| Virtu KCG Holdings LLC | 205,188 | $96,000 | 0.00% |
| HighTower Advisors, LLC | 336,098 | $157,000 | 0.00% |