Exhibit 99.1 HARMONY BIOSCIENCES REPORTS STRONG 2024 REVENUES, PROVIDES 2025 REVENUE GUIDANCE AND HIGHLIGHTS KEY PIPELINE CATALYSTS WAKIX® (pitolisant) Preliminary Net Revenue of ~$201 Million for Fourth Quarter and ~$714 Million for Full Year 2024; Representing Growth of ~23% in Year-Five of Launch 2025 WAKIX Net Revenue Guidance Between $820 - $860 Million; On Track to a Potential $1 Billion+ Opportunity Value-Creating Catalysts Anticipated Every Quarter in 2025: Q1 – FDA Decision on File Acceptance of Pi ...