NEW YORK , March 9, 2026 /PRNewswire/ --

Why: Rosen Law Firm, a global investor rights law firm, announces a class action lawsuit on behalf of purchasers of common stock of Soleno Therapeutics, Inc. (NASDAQ: SLNO) between March 26, 2025 through November 4, 2025, both dates inclusive (the "Class Period"). A class action lawsuit has already been filed. If you wish to serve as lead plaintiff, you must move the Court no later than May 5, 2026.

So what: If you purchased Soleno common stock during the Class Period you may be entitled to compensation without payment of any out of pocket fees or costs through a contingency fee arrangement.

What to do next: To join the Soleno class action, go to https://rosenlegal.com/submit-form/?case_id=43959 or call Phillip Kim, Esq. toll-free at 866-767-3653 or email case@rosenlegal.com for information on the class action. A class action lawsuit has already been filed. If you wish to serve as lead plaintiff, you must move the Court no later than May 5, 2026. A lead plaintiff is a representative party acting on behalf of other class members in directing the litigation.

Why Rosen Law: We encourage investors to select qualified counsel with a track record of success in leadership roles. Often, firms issuing notices do not have comparable experience, resources, or any meaningful peer recognition. Be wise in selecting counsel. The Rosen Law Firm represents investors throughout the globe, concentrating its practice in securities class actions and shareholder derivative litigation. Rosen Law Firm has achieved, at that time, the largest ever securities class action settlement against a Chinese Company. Rosen Law Firm was Ranked No. 1 by ISS Securities Class Action Services for number of securities class action settlements in 2017. The firm has been ranked in the top 4 each year since 2013 and has recovered hundreds of millions of dollars for investors. In 2019 alone the firm secured over $438 million for investors. In 2020, founding partner Laurence Rosen was named by law360 as a Titan of Plaintiffs' Bar. Many of the firm's attorneys have been recognized by Lawdragon and Super Lawyers.

Details of the case: According to the lawsuit, defendants made false and/or misleading statements and/or failed to disclose that: (1) the Soleno Phase 3 clinical trial program for diazoxide choline extended-release tablets ("DCCR") had systematically downplayed, misrepresented, and/or concealed significant evidence of safety concerns potentially related to the administration of DCCR, including issues related to excess fluid retention in clinical trial participants; (2) as a result, the administration of DCCR to treat hyperphagia in individuals with Prader-Willi syndrome ("PWS") posed materially greater safety risks than disclosed by Soleno or its executives; and (3) as a result, DCCR had materially lower commercial viability and undisclosed risks related to the likelihood of significant and widespread adverse events after its commercial launch, including risks related to patient discontinuation rates, lower patient adoption, prescriber reluctance, adverse regulatory action, and potential reputational and legal fallout. When the true details entered the market, the lawsuit claims that investors suffered damages.

To join the Soleno class action, go to https://rosenlegal.com/submit-form/?case_id=43959 or call Phillip Kim, Esq. toll-free at 866-767-3653 or email case@rosenlegal.com for information on the class action.

No Class Has Been Certified. Until a class is certified, you are not represented by counsel unless you retain one. You may select counsel of your choice. You may also remain an absent class member and do nothing at this point. An investor's ability to share in any potential future recovery is not dependent upon serving as lead plaintiff.

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Contact Information:

      Laurence Rosen, Esq.
      Phillip Kim, Esq.
      The Rosen Law Firm, P.A.
      275 Madison Avenue, 40th Floor
      New York, NY 10016
      Tel: (212) 686-1060
      Toll Free: (866) 767-3653
      Fax: (212) 202-3827
      case@rosenlegal.com
      www.rosenlegal.com

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SOURCE THE ROSEN LAW FIRM, P. A.