April 15, 2025 Sandip Kapadia Chief Financial Officer Harmony Biosciences Holdings, Inc. 630 W. Germantown Pike, Suite 215 Plymouth Meeting, PA 19462 Re: Harmony Biosciences Holdings, Inc. Form10-K for Fiscal Year Ended December 31 , 2024 File No. 001-39450 Dear Sandip Kapadia: We have completed our review of your filings. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Life Sciences