ARATANA THERAPEUTICS INC

CUSIP: 03874P101 Class: COM

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q2 2016
Shares 775,000 Value ($000) $4,898 Avg Close — Range —
Q1 2016
Shares 800,000 Value ($000) $4,416 Avg Close — Range —
Q4 2015
Shares 800,000 Value ($000) $4,464 Avg Close — Range —
Q3 2015
Shares 700,000 Value ($000) $5,922 Avg Close — Range —
Q2 2015
Shares 1,050,000 Value ($000) $15,876 Avg Close — Range —
Q1 2015
Shares 1,200,000 Value ($000) $19,212 Avg Close — Range —
Q4 2014
Shares 1,300,000 Value ($000) $23,166 Avg Close — Range —
Q3 2014
Shares 1,575,000 Value ($000) $15,813 Avg Close — Range —
Q2 2014
Shares 1,275,000 Value ($000) $19,903 Avg Close — Range —
Q1 2014
Shares 1,275,000 Value ($000) $23,664 Avg Close — Range —
Q4 2013
Shares 1,275,000 Value ($000) $24,353 Avg Close — Range —
Q3 2013
Shares 1,000,000 Value ($000) $16,340 Avg Close — Range —
Q2 2013
Shares 1,000,000 Value ($000) $7,560 Avg Close — Range —