GROUP ONE TRADING, L.P. - ANTHERA PHARMACEUTICALS INC ownership

ANTHERA PHARMACEUTICALS INC's ticker is ANTH and the CUSIP is 03674U201. A total of 37 filers reported holding ANTHERA PHARMACEUTICALS INC in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of ANTHERA PHARMACEUTICALS INC
ValueSharesWeighting
Q1 2017$66,000
+24.5%
155,061
+91.3%
0.00%0.0%
Q4 2016$53,000
-45.9%
81,056
+160.3%
0.00%0.0%
Q3 2016$98,000
-67.8%
31,142
-52.5%
0.00%
-75.0%
Q4 2015$304,000
-24.4%
65,532
-0.8%
0.00%
-33.3%
Q3 2015$402,000
+306.1%
66,077
+473.3%
0.01%
+500.0%
Q2 2015$99,000
+607.1%
11,525
+53.6%
0.00%
Q3 2014$14,000
-57.6%
7,501
-22.3%
0.00%
-100.0%
Q2 2014$33,000
+3200.0%
9,650
+3116.7%
0.00%
Q1 2014$1,0003000.00%
Other shareholders
ANTHERA PHARMACEUTICALS INC shareholders Q4 2014
NameSharesValueWeighting ↓
GREAT POINT PARTNERS LLC 1,431,196$2,748,0001.18%
Abingworth LLP 437,994$832,0000.50%
Broadfin Capital, LLC 1,301,622$2,499,0000.26%
Rhenman & Partners Asset Management AB 400,000$768,0000.22%
BVF INC/IL 559,624$1,074,0000.22%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 1,691,857$3,248,0000.12%
Perceptive Advisors 478,456$919,0000.10%
Gruss Capital Management LP 1,720,000$3,302,0000.08%
SECTORAL ASSET MANAGEMENT INC 247,961$476,0000.02%
Spark Investment Management LLC 36,400$69,0000.01%
View complete list of ANTHERA PHARMACEUTICALS INC shareholders