GROUP ONE TRADING, L.P. - MAST THERAPEUTICS INC ownership

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
GROUP ONE TRADING, L.P. ownership history of MAST THERAPEUTICS INC
ValueSharesWeighting
Q2 2016$69,000
+3350.0%
146,855
+2074.0%
0.00%
Q1 2016$2,000
-33.3%
6,7550.0%0.00%
Q4 2015$3,000
-25.0%
6,7550.0%0.00%
Q3 2015$4,000
+33.3%
6,755
+1.5%
0.00%
Q2 2015$3,000
-25.0%
6,655
-19.7%
0.00%
Q1 2015$4,0008,285
+3174.7%
0.00%
Q4 2014$0
-100.0%
253
-94.7%
0.00%
Q3 2014$3,000
-40.0%
4,767
-57.9%
0.00%
Q4 2013$5,00011,319
+282875.0%
0.00%
Q3 2013$040.00%
Other shareholders
MAST THERAPEUTICS INC shareholders Q4 2013
NameSharesValueWeighting ↓
GREAT POINT PARTNERS LLC 1,294,934$599,0000.42%
Ancora Advisors LLC 1,234,599$571,0000.09%
Alyeska Investment Group, L.P. 1,900,000$1,757,0000.07%
THOMPSON DAVIS & CO., INC. 80,000$37,0000.06%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 1,466,249$678,0000.04%
SHEPHERD KAPLAN KROCHUK, LLC 532,776$246,0000.03%
PACIFIC ALTERNATIVE ASSET MANAGEMENT COMPANY, LLC 123,450$57,0000.02%
WEXFORD CAPITAL LP 89,360$41,0000.00%
FRANKLIN RESOURCES INC 12,046,100$5,570,0000.00%
Renaissance Technologies 1,535,000$710,0000.00%
View complete list of MAST THERAPEUTICS INC shareholders