Rosen Law Firm, a global investor rights law firm, announces a class action lawsuit on behalf of purchasers of securities of Gossamer Bio, Inc. (NASDAQ: GOSS) between June 16, 2025 and February 20, 2026. Gossamer describes itself as a “clinical stage biopharmaceutical company focused on the development and commercialization of seralutinib for the treatment of pulmonary hypertension (PH) associated with interstitial lung disease.”
For more information, submit a form, email attorney Phillip Kim, or give us a call at 866-767-3653.
The Allegations: Rosen Law Firm is Investigating the Allegations that Gossamer Bio, Inc. (NASDAQ: GOSS) Misled Investors Regarding its Business Operations.
According to the lawsuit, defendants provided overwhelmingly positive statements to investors while, at the same time, disseminating false and misleading statements and/or concealing material adverse facts concerning the study design for Gossamer’s Phase 3 PROSERA study, particularly, controlling for the placebo response at the Latin American testing sites. When the true details entered the market, the lawsuit claims that investors suffered damages.
What Now: You may be eligible to participate in the class action against Gossamer Bio, Inc. Shareholders who want to serve as lead plaintiff for the class must file their motions with the court by June 1, 2026. A lead plaintiff is a representative party who acts on behalf of other class members in directing the litigation. You do not have to participate in the case to be eligible for a recovery. If you choose to take no action, you can remain an absent class member. For more information, click here.
All representation is on a contingency fee basis. Shareholders pay no fees or expenses.
About Rosen Law Firm: Some law firms issuing releases about this matter do not actually litigate securities class actions. Rosen Law Firm does. Rosen Law Firm is a recognized leader in shareholder rights litigation, dedicated to helping shareholders recover losses, improving corporate governance structures, and holding company executives accountable for their wrongdoing. Since its inception, Rosen Law Firm has obtained over $1 billion for shareholders.
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