Los Angeles — The Law Offices of Frank R. Cruz announces an investigation of Supernus Pharmaceuticals, Inc. (“Supernus” or the “Company”) (NASDAQ: SUPN) on behalf of investors concerning the Company’s possible violations of federal securities laws.

On April 8, 2024, Supernus announced that the FDA had issued a Complete Response Letter (“CRL”) in response to the Company’s New Drug Application for its Parkinson’s disease treatment, SPN-830. The CRL stated that “the review cycle for the application is complete, but that the application is not ready for approval in its present form.” Specifically, “two areas that require additional review by the FDA or additional information to be provided to the FDA,” respectively relating to product quality and the master file for the infusion device.

On this news, Supernus’s stock price fell $2.12, or 6.3%, to close at $31.43 per share on April 8, 2024, thereby injuring investors.

Follow us for updates on Twitter: twitter.com/FRC_LAW.

If you purchased Supernus securities, have information or would like to learn more about these claims, or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Frank R. Cruz, of The Law Offices of Frank R. Cruz, 2121 Avenue of the Stars, Suite 800, Century City, California 90067 at 310-914-5007, by email to info@frankcruzlaw.com, or visit our website at www.frankcruzlaw.com.  If you inquire by email please include your mailing address, telephone number, and number of shares purchased.