Horizon Pharma plc is a biopharmaceutical company focused on improving patients' lives by identifying, developing, acquiring and commercializing differentiated and accessible medicines that address unmet medical needs. The Company markets 11 medicines through its orphan, rheumatology and primary care business units. Horizon's global headquarters are in Dublin, Ireland.

The Company also has offices in Lake Forest, Ill.; Chicago, Ill.; Brisbane, Calif.; Reinach, Switzerland and Mannheim, Germany.