The Law Offices of Frank R. Cruz announces that a class action lawsuit has been filed on behalf of investors who purchased Jasper Therapeutics, Inc. (“Jasper” or the “Company”) (NASDAQ: JSPR) securities between November 30, 2023 and July 3, 2025, inclusive (the “Class Period”). Jasper investors have until November 18, 2025 to file a lead plaintiff motion.

IF YOU SUFFERED A LOSS ON YOUR JASPER THERAPEUTICS, INC. (JSPR) INVESTMENTS, CLICK HERE TO SUBMIT A CLAIM TO POTENTIALLY RECOVER YOUR LOSSES IN THE ONGOING SECURITIES FRAUD LAWSUIT.

You can also contact the Law Offices of Frank R. Cruz to discuss your legal rights by email at info@frankcruzlaw.com, by telephone at (310) 914-5007, or visit our website at www.frankcruzlaw.com.

What Happened?

On July 7, 2025, Jasper released an update on its Phase 1b/2a clinical study of subcutaneous briquilimab for the treatment of Chronic Spontaneous Urticaria (“CSU”), referred to as the “BEACON Study,” stating that certain results “appear to be confounded by an issue with one drug product lot used in those cohorts, with 10 of the 13 patients dosed with drug from the lot in question,” and that Jasper was “taking steps to ensure that drug product from the lot in question is returned to the Company and that sites have drug product from other lots to continue dosing.” Further, the Company revealed it “has also determined that the drug product lot in question was used to treat participants enrolled in the ETESIAN [Study]. As a result, and in order to focus resources on advancing briquilimab in CSU, the Company is halting the study and pausing development in asthma.” Jasper also disclosed that it would be “halting development in SCID” and “will be implementing a number of other cost cutting measures including a potential restructuring, to extend runway and reduce expenses.”

On this news, Jasper’s stock price fell $3.73, or 55.1%, to close at $3.04 per share on July 7, 2025, thereby injuring investors.

What Is The Lawsuit About?

The complaint filed in this class action alleges that throughout the Class Period, Defendants made materially false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, and prospects. Specifically, Defendants failed to disclose to investors that: (1) Jasper lacked the controls and procedures necessary to ensure that the third-party manufacturers on which it relied were manufacturing products in full accordance with cGMP regulations and otherwise suitable for use in clinical trials; (2) the foregoing failure increased the risk that results of ongoing studies would be confounded, thereby negatively impacting the regulatory and commercial prospects of the Company’s products, including briquilimab; (3) the foregoing increased the likelihood of disruptive cost-reduction measures; (4) accordingly, the Company’s business and/or financial prospects, as well as briquilimab’s clinical and/or commercial prospects, were overstated; and (5) as a result, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis at all relevant times.

Contact Us To Participate or Learn More:

If you purchased Jasper securities, wish to learn more about this action, or have any questions concerning this announcement or your rights or interests with respect to these matters, please click HERE or contact us at:

Law Offices of Frank R. Cruz

2121 Avenue of the Stars, Suite 800

Telephone: 310-914-5007

Email: info@frankcruzlaw.com

Visit our website at: www.frankcruzlaw.com

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View source version on businesswire.com: https://www.businesswire.com/news/home/20250924833215/en/

Law Offices of Frank R. Cruz Encourages Jasper Therapeutics, Inc. (JSPR) Investors To Inquire About Securities Fraud Class Action