ARATANA THERAPEUTICS INC

CUSIP: 03874P101 Class: COM

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2019
Shares 112,300 Value ($000) $404 Avg Close — Range —
Q4 2018
Shares 38,200 Value ($000) $234 Avg Close — Range —