Glancy Prongay Wolke & Rotter LLP, a leading national shareholder rights law firm, today announced that it has commenced an investigation on behalf of Soleno Therapeutics, Inc. (“Soleno” or the “Company”) (NASDAQ: SLNO) investors concerning the Company’s possible violations of the federal securities laws.
IF YOU ARE AN INVESTOR WHO LOST MONEY ON SOLENO THERAPEUTICS, INC. (SLNO), CLICK HERE TO INQUIRE ABOUT POTENTIALLY PURSUING CLAIMS TO RECOVER YOUR LOSS.
What Happened?
On August 15, 2025, activist investor organization Scorpion Capital LLC published a 415-page report regarding Soleno entitled “Russian Roulette With Prader-Willi Children: How The Latest Rare-Disease Price-Gouging Scheme Fleeced the FDA, Parents, And Its Own Study Investigators With A Worthless, Toxic Drug.” The report alleges a number of problems with the Company’s diazoxide choline tablet (“DCCR”), including clinical trial conduct, safety and efficacy concerns, and patient reports of serious adverse reactions following its commercial launch.
On this news, the price of Soleno stock declined $9.27 per share, or 11.98%, over two trading days to close at $68.09 on August 18, 2025, thereby injuring investors.
Then, on September 10, 2025, Soleno filed a Form 8-K with the U.S. Securities and Exchange Commission disclosing that a patient had died after taking DCCR.
On this news, the price of Soleno stock declined $13.49 per share, or 19.21%, over two trading days to close at $56.72 on September 11, 2025, thereby further injuring investors.
Finally, on November 4, 2025, Soleno reported its third quarter 2025 financial results, revealing that the Scorpion Capital report had disrupted DCCR’s launch trajectory and raised concerns within the Prader-Willi syndrome community, in part resulting in a lower number of patient start forms and increased discontinuations beginning after the report’s publication.
On this news, the price of Soleno stock declined $16.98 per share, or 26.59% to close at $46.87 on November 5, 2025, thereby further injuring investors.
Contact Us To Participate or Learn More:
If you wish to learn more about this action, or if you have any questions concerning this announcement or your rights or interests with respect to these matters, please contact us.
Charles Linehan, Esq.,
Glancy Prongay Wolke & Rotter LLP,
1925 Century Park East, Suite 2100,
Los Angeles California 90067
Email: shareholders@glancylaw.com
Telephone: 310-201-9150 (Toll-Free: 888-773-9224)
Visit our website at www.glancylaw.com.
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Whistleblower Notice
Persons with non-public information regarding Soleno should consider their options to aid the investigation or take advantage of the SEC Whistleblower Program. Under the program, whistleblowers who provide original information may receive rewards totaling up to 30 percent of any successful recovery made by the SEC. For more information, call Charles H. Linehan at 310-201-9150 or 888-773-9224 or email shareholders@glancylaw.com.
About Glancy Prongay Wolke & Rotter LLP
Glancy Prongay Wolke & Rotter LLP (“GPWR”) is a premier law firm representing investors and consumers in securities litigation and other complex class action litigation. GPWR has been consistently ranked in the Top 50 Securities Class Action Settlements by ISS Securities Class Action Services. In 2018, GPWR was ranked a top five law firm in number of securities class action settlements, and a top six law firm for total dollar size of settlements.
With four offices across the country, GPWR’s nearly 40 attorneys have won groundbreaking rulings and recovered billions of dollars for investors and consumers in securities, antitrust, consumer, and employment class actions. GPWR’s lawyers have handled cases covering a wide spectrum of corporate misconduct and relating to nearly all industries and sectors. GPWR’s past successes have been widely covered by leading news and industry publications such as The Wall Street Journal, The Financial Times, Bloomberg Businessweek, Reuters, the Associated Press, Barron’s, Investor’s Business Daily, Forbes, and Money.
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Glancy Prongay Wolke & Rotter LLP,
1925 Century Park East, Suite 2100,
Los Angeles, CA 90067
Charles Linehan
Email: shareholders@glancylaw.com
Telephone: 310-201-9150
Toll-Free: 888-773-9224
Visit our website at: www.glancylaw.com.
