HORIZON PHARMA PLC

CUSIP: G4617B105 Class: SHS

Atika Capital Management LLC's Holding History (CIK: 0001599731)

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

Q1 2019
Shares 155,000 Value ($000) $4,096 Avg Close — Range —
Q3 2016
Shares 265,000 Value ($000) $4,805 Avg Close — Range —
Q2 2016
Shares 433,000 Value ($000) $7,132 Avg Close — Range —
Q1 2016
Shares 240,000 Value ($000) $3,976 Avg Close — Range —
Q2 2015
Shares 129,650 Value ($000) $4,504 Avg Close — Range —