ARATANA THERAPEUTICS INC

CUSIP: 03874P101 Class: COM

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q4 2014
Shares 30,000 Value ($000) $535,000 Avg Close — Range —
Q3 2014
Shares 248,589 Value ($000) $2,496,000 Avg Close — Range —
Q2 2014
Shares 79,800 Value ($000) $1,246,000 Avg Close — Range —
Q1 2014
Shares 15,537 Value ($000) $288,000 Avg Close — Range —