DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) - MAST THERAPEUTICS INC ownership

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MAST THERAPEUTICS INC's ticker is MSTX and the CUSIP is 576314108. A total of 42 filers reported holding MAST THERAPEUTICS INC in Q1 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) ownership history of MAST THERAPEUTICS INC
ValueSharesWeighting
Q4 2014$392,000
-42.2%
700,000
-52.3%
0.01%
-60.0%
Q4 2013$678,000
-41.3%
1,466,249
-44.3%
0.04%
-35.2%
Q3 2013$1,156,000
-31.8%
2,634,221
-33.3%
0.05%
-32.5%
Q2 2013$1,695,000–3,948,302–0.08%–
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Other shareholders
MAST THERAPEUTICS INC shareholders Q1 2015
NameSharesValueWeighting ↓
Corbenic Partners LLC 3,000$00.00%
View complete list of MAST THERAPEUTICS INC shareholders