ARATANA THERAPEUTICS INC

CUSIP: 03874P101 Class: COM

Rock Springs Capital Management LP's Holding History (CIK: 0001595725)

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

Q4 2015
Shares 43,445 Value ($000) $242 Avg Close — Range —
Q3 2015
Shares 485,000 Value ($000) $4,103 Avg Close — Range —
Q2 2015
Shares 300,000 Value ($000) $4,536 Avg Close — Range —