ARATANA THERAPEUTICS INC

CUSIP: 03874P101 Class: COM

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

Note: Option positions (PUT/CALL) are excluded.

Q1 2019
Shares 1,590,967 Value ($000) $5,727 Avg Close — Range —
Q4 2018
Shares 1,499,167 Value ($000) $9,190 Avg Close — Range —
Q3 2018
Shares 1,491,196 Value ($000) $8,709 Avg Close — Range —
Q2 2018
Shares 1,376,198 Value ($000) $5,849 Avg Close — Range —
Q1 2018
Shares 1,010,448 Value ($000) $4,456 Avg Close — Range —
Q4 2017
Shares 1,000,044 Value ($000) $5,260 Avg Close — Range —
Q3 2017
Shares 990,703 Value ($000) $6,073 Avg Close — Range —
Q2 2017
Shares 984,694 Value ($000) $7,119 Avg Close — Range —
Q1 2017
Shares 984,899 Value ($000) $5,220 Avg Close — Range —
Q4 2016
Shares 986,328 Value ($000) $7,082 Avg Close — Range —
Q3 2016
Shares 988,772 Value ($000) $9,255 Avg Close — Range —
Q2 2016
Shares 971,935 Value ($000) $6,143 Avg Close — Range —
Q1 2016
Shares 924,833 Value ($000) $5,106 Avg Close — Range —
Q4 2015
Shares 913,128 Value ($000) $5,095 Avg Close — Range —
Q3 2015
Shares 919,623 Value ($000) $7,780 Avg Close — Range —
Q2 2015
Shares 980,487 Value ($000) $14,824,964 Avg Close — Range —
Q1 2015
Shares 995,049 Value ($000) $15,930,734 Avg Close — Range —
Q4 2014
Shares 1,110,312 Value ($000) $19,785,760 Avg Close — Range —
Q3 2014
Shares 1,246,403 Value ($000) $12,514 Avg Close — Range —
Q2 2014
Shares 978,119 Value ($000) $15,268 Avg Close — Range —
Q1 2014
Shares 828,200 Value ($000) $15,371,392 Avg Close — Range —