Exhibit 99.1 HARMONY BIOSCIENCES REPORTS STRONG THIRD QUARTER 2024 FINANCIAL RESULTS AND HIGHLIGHTS CATALYST-RICH, LATE-STAGE PIPELINE POISED TO DELIVER ONE OR MORE NEW LAUNCHES EVERY YEAR OVER NEXT FIVE YEARS WAKIX (pitolisant) Net Revenue of $186.0 Million for Third Quarter 2024; Surpassed $2B in Cumulative Net Revenue in Less Than Five Years On Track to Submit sNDA for Pitolisant in Idiopathic Hypersomnia (IH) in Q4 2024 Based on Updated Strong and Sustained Efficacy Data from Long-Term Extension Study N ...