Marinus Pharmaceuticals to Provide Business Update and Report First Quarter 2024 Financial Results on May 8, 2024

Marinus Pharmaceuticals, Inc. (Nasdaq: MRNS), a pharmaceutical company dedicated to the development of innovative therapeutics to treat seizure disorders, today announced that it plans to release financial results for the first quarter ended March 31, 2024 before market open on May 8, 2024.

The press release will be available on Marinus’ investor relations website at https://ir.marinuspharma.com/news/default.aspx.

About Marinus Pharmaceuticals

Marinus is a commercial-stage pharmaceutical company dedicated to the development of innovative therapeutics for seizure disorders. The Company first introduced FDA-approved prescription medication ZTALMY® (ganaxolone) oral suspension CV in the U.S. in 2022 and continues to invest in the potential of ganaxolone in IV and oral formulations to maximize therapeutic reach for adult and pediatric patients in acute and chronic care settings. For more information about Marinus visit www.marinuspharma.com.

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Company Investors and Media Molly Cameron Director, Corporate Communications & Investor Relations Marinus Pharmaceuticals, Inc. [e-mail]