Exhibit 99.1 Axsome Therapeutics Reports First Quarter 2024 Financial Results and Provides Business Update Total 1Q 2024 net product revenue of $75.0 million, representing 160% year-over-year growth Auvelity® 1Q 2024 net product sales of $53.4 million, representing 240% year-over-year growth Sunosi® 1Q 2024 net product revenue of $21.6 million representing 64% year-over-year growth Contract executed with second large group purchasing organization (GPO) for potential coverage of Auvelity Positive pivotal Pha ...