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

ARATANA THERAPEUTICS INC's ticker is PETX and the CUSIP is 03874P101. A total of 115 filers reported holding ARATANA THERAPEUTICS INC in Q4 2018. 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 ARATANA THERAPEUTICS INC
ValueSharesWeighting
Q2 2019$10,000
-28.6%
1,900
-50.5%
0.00%
Q1 2019$14,000
-33.3%
3,841
+10.9%
0.00%
Q4 2018$21,000
-22.2%
3,465
-26.0%
0.00%
Q3 2018$27,000
+68.8%
4,681
+27.2%
0.00%
Q2 2018$16,000
-63.6%
3,681
-62.7%
0.00%
Q1 2018$44,000
+33.3%
9,871
+58.7%
0.00%
Q4 2017$33,000
+3.1%
6,219
+19.4%
0.00%
Q3 2017$32,000
-75.8%
5,207
-71.4%
0.00%
-100.0%
Q2 2017$132,000
-66.6%
18,217
-75.5%
0.00%
-80.0%
Q1 2017$395,000
+7800.0%
74,486
+12967.7%
0.01%
Q3 2016$5,000
+25.0%
570
-18.6%
0.00%
Q1 2016$4,0000.0%700
+40.0%
0.00%
Q3 2015$4,000
-95.8%
500
-92.1%
0.00%
-100.0%
Q2 2015$95,000
-22.1%
6,300
-17.1%
0.00%
-50.0%
Q1 2015$122,000
+238.9%
7,600
+225.3%
0.00%
+100.0%
Q2 2014$36,0002,3360.00%
Other shareholders
ARATANA THERAPEUTICS INC shareholders Q4 2018
NameSharesValueWeighting ↓
Broadfin Capital, LLC 5,184,942$37,487,0004.55%
AWM Investment Company, Inc. 1,587,620$11,478,0002.03%
Opaleye Management Inc. 350,200$2,279,0000.95%
MPM ASSET MANAGEMENT LLC 250,000$1,808,0000.78%
Grandeur Peak Global Advisors, LLC 538,363$3,892,0000.56%
GENERAL AMERICAN INVESTORS CO INC 618,660$4,473,0000.45%
Redmond Asset Management, LLC 55,941$404,0000.19%
EcoR1 Capital, LLC 100,000$723,0000.13%
WOODSTOCK CORP 71,906$520,0000.10%
CADENCE CAPITAL MANAGEMENT LLC 165,359$1,196,0000.08%
View complete list of ARATANA THERAPEUTICS INC shareholders