MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - 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
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ ownership history of ARATANA THERAPEUTICS INC
ValueSharesWeighting
Q1 2019$5,727,000
-37.7%
1,590,967
+6.1%
0.00%
-50.0%
Q4 2018$9,190,000
+5.5%
1,499,167
+0.5%
0.00%0.0%
Q3 2018$8,709,000
+48.9%
1,491,196
+8.4%
0.00%
+33.3%
Q2 2018$5,849,000
+31.3%
1,376,198
+36.2%
0.00%
+50.0%
Q1 2018$4,456,000
-15.3%
1,010,448
+1.0%
0.00%0.0%
Q4 2017$5,260,000
-13.4%
1,000,044
+0.9%
0.00%
-33.3%
Q3 2017$6,073,000
-14.7%
990,703
+0.6%
0.00%0.0%
Q2 2017$7,119,000
+36.4%
984,694
-0.0%
0.00%
+50.0%
Q1 2017$5,220,000
-26.3%
984,899
-0.1%
0.00%
-33.3%
Q4 2016$7,082,000
-23.5%
986,328
-0.2%
0.00%
-40.0%
Q3 2016$9,255,000
+50.7%
988,772
+1.7%
0.01%
+66.7%
Q2 2016$6,143,000
+20.3%
971,935
+5.1%
0.00%0.0%
Q1 2016$5,106,000
+0.2%
924,833
+1.3%
0.00%0.0%
Q4 2015$5,095,000
-34.5%
913,128
-0.7%
0.00%
-25.0%
Q3 2015$7,780,000
-99.9%
919,623
-6.2%
0.00%
-50.0%
Q2 2015$14,824,964,000
-6.9%
980,487
-1.5%
0.01%0.0%
Q1 2015$15,930,734,000
-19.5%
995,049
-10.4%
0.01%
-20.0%
Q4 2014$19,785,760,000
+158009.0%
1,110,312
-10.9%
0.01%
+42.9%
Q3 2014$12,514,000
-18.0%
1,246,403
+27.4%
0.01%
-12.5%
Q2 2014$15,268,000
-99.9%
978,119
+18.1%
0.01%0.0%
Q1 2014$15,371,392,000828,2000.01%
Other shareholders
ARATANA THERAPEUTICS INC shareholders Q4 2018
NameSharesValueWeighting ↓
Engaged Capital LLC 3,487,149$21,376,0003.96%
Broadfin Capital, LLC 4,083,135$25,030,0003.29%
MPM ASSET MANAGEMENT LLC 250,000$1,533,0001.30%
GENERAL AMERICAN INVESTORS CO INC 1,599,365$9,804,0001.03%
Grandeur Peak Global Advisors, LLC 821,038$5,033,0000.65%
CADENCE CAPITAL MANAGEMENT LLC 307,294$1,884,0000.19%
Redmond Asset Management, LLC 60,176$369,0000.18%
Alambic Investment Management, L.P. 65,000$398,0000.17%
MENTA CAPITAL LLC 39,562$243,0000.09%
Campbell & CO Investment Adviser LLC 12,990$88,0000.09%
View complete list of ARATANA THERAPEUTICS INC shareholders