ARATANA THERAPEUTICS INC

CUSIP: 03874P101 Class: COM

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q2 2014
Shares 788,904 Value ($000) $12,315 Avg Close — Range —
Q1 2014
Shares 788,904 Value ($000) $14,642 Avg Close — Range —