X0206 3/A 2020-08-18 2020-08-18 1 0001802665 Harmony Biosciences Holdings, Inc. HRMY 0001602402 Nielsen Jack C/O HARMONY BIOSCIENCES, INC. 630 W. GERMANTOWN PIKE, SUITE 215 PLYMOUTH MEETING PA 19462 1 0 0 0 Due to an administrative error, the original Form 3 reported shares that the Reporting Person does not beneficially own. /s/ Stephanie Wisdo, Attorney-in-fact for Jack Bech Nielsen 2020-08-20