Spark Investment Management LLC - ANTHERA PHARMACEUTICALS INC ownership

ANTHERA PHARMACEUTICALS INC's ticker is ANTH and the CUSIP is 03674U201. A total of 35 filers reported holding ANTHERA PHARMACEUTICALS INC in Q3 2014. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
Spark Investment Management LLC ownership history of ANTHERA PHARMACEUTICALS INC
ValueSharesWeighting
Q1 2015$73,000
-54.4%
16,400
-84.1%
0.01%
-63.0%
Q4 2014$160,000
+131.9%
103,400
+184.1%
0.03%
+170.0%
Q3 2014$69,00036,4000.01%
Other shareholders
ANTHERA PHARMACEUTICALS INC shareholders Q3 2014
NameSharesValueWeighting ↓
Sio Capital Management, LLC 2,535,564$7,835,0004.00%
ProQuest Associates IV LLC 1,900,000$5,871,0002.39%
Abingworth LLP 437,994$1,349,0001.41%
Hilltop Park Associates LLC 75,000$232,0000.97%
Broadfin Capital, LLC 1,154,674$3,568,0000.35%
Perceptive Advisors 1,492,156$4,611,0000.32%
Rhenman & Partners Asset Management AB 300,000$927,0000.16%
Rock Springs Capital Management LP 450,000$1,391,0000.10%
WEXFORD CAPITAL LP 145,622$450,0000.08%
BOOTHBAY FUND MANAGEMENT, LLC 15,960$49,0000.02%
View complete list of ANTHERA PHARMACEUTICALS INC shareholders