GOSSAMER DEADLINE: ROSEN, A RANKED AND LEADING LAW FIRM, Encourages Gossamer Bio, Inc. Investors with Losses in Excess of $100K to Secure Counsel Before Important Deadline in Securities Class Action – GOSS

Source · https://www.globenewswire.com/news-release/2026/05/28/3302471/673/en/GOSSAMER-DEADLINE-ROSEN-A-RANKED-AND-LEADING-LAW-FIRM-Encourages-Gossamer-Bio-Inc-Investors-with-Losses-in-Excess-of-100K-to-Secure-Counsel-Before-Important-Deadline-in-Securities-.html

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GOSSAMER DEADLINE: ROSEN, A RANKED AND LEADING LAW FIRM, Encourages Gossamer Bio, Inc. Investors with Losses in Excess of $100K to Secure Counsel Before Important Deadline in Securities Class Action – GOSS

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Gossamer Bio, Inc. (GOSS) is facing a securities class action lawsuit alleging the company concealed material adverse facts and issued misleading statements regarding its Phase 3 PROSERA study design. — Allegations of clinical trial mismanagement and deceptive investor communications typically trigger negative sentiment and potential legal liabilities for biotech firms.

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The lawsuit specifically claims GOSS failed to properly control for the placebo response at Latin American testing sites within the PROSERA study. — Specific failures in trial design can call into question the validity of the drug's efficacy data, threatening the path to regulatory approval.

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The deadline for investors to move the Court to serve as lead plaintiff in the GOSS securities litigation is June 1, 2026. — While a procedural deadline, it marks a step toward formalizing the litigation process.

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GOSSAMER DEADLINE: ROSEN, A RANKED AND LEADING LAW FIRM, Encourages Gossamer Bio, Inc. Investors with Losses in Excess of $100K to Secure Counsel Before Important Deadline in Securities Class Action – GOSS

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GOSSAMER DEADLINE: ROSEN, A RANKED AND LEADING LAW FIRM, Encourages Gossamer Bio, Inc. Investors with Losses in Excess of $100K to Secure Counsel Before Important Deadline in Securities Class Action – GOSS

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