SIMPLEX TRADING, LLC - ARATANA THERAPEUTICS INC ownership

ARATANA THERAPEUTICS INC's ticker is PETX and the CUSIP is 03874P101. A total of 99 filers reported holding ARATANA THERAPEUTICS INC in Q4 2015. The put-call ratio across all filers is - and the average weighting 0.2%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of ARATANA THERAPEUTICS INC
ValueSharesWeighting
Q2 2019$52,000
-38.1%
10,159
-56.7%
0.00%
Q1 2019$84,000
+2700.0%
23,474
+3585.1%
0.00%
Q4 2018$3,000
-89.3%
637
-90.5%
0.00%
Q2 2018$28,000
-49.1%
6,686
-47.3%
0.00%
-100.0%
Q1 2018$55,000
+223.5%
12,675
+283.6%
0.00%
+100.0%
Q4 2017$17,000
-71.2%
3,304
-66.1%
0.00%
-50.0%
Q3 2017$59,000
+195.0%
9,760
+147.0%
0.00%
+100.0%
Q1 2017$20,000
-55.6%
3,951
-44.8%
0.00%
-66.7%
Q2 2016$45,0007,163
+13164.8%
0.00%
Q4 2015$0
-100.0%
54
-97.4%
0.00%
-100.0%
Q1 2015$33,0002,1110.00%
Other shareholders
ARATANA THERAPEUTICS INC shareholders Q4 2015
NameSharesValueWeighting ↓
March Altus Capital Management LP 218,515$1,219,00011.21%
Broadfin Capital, LLC 3,428,865$19,133,0001.18%
MPM ASSET MANAGEMENT LLC 1,117,875$6,238,0001.11%
AlpInvest Partners B.V. 100,001$558,0000.93%
First Light Asset Management, LLC 395,043$2,204,0000.92%
Westend Capital Management, LLC 89,780$501,0000.69%
Grandeur Peak Global Advisors, LLC 460,675$2,571,0000.53%
AWM Investment Company, Inc. 467,507$2,609,0000.51%
HAMILTON LANE ADVISORS LLC 111,705$623,0000.27%
Sio Capital Management, LLC 97,376$543,0000.24%
View complete list of ARATANA THERAPEUTICS INC shareholders