ROSEN, TRUSTED INVESTOR COUNSEL, Encourages Gossamer Bio, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action – GOSS

Rosen Law Firm is actively encouraging investors of Gossamer Bio, Inc. (GOSS) to secure legal counsel before an important June 1, 2026, deadline in an ongoing securities class action lawsuit. This action specifically targets individuals who purchased Gossamer Bio securities between June 16, 2025, and February 20, 2026, encompassing what is defined as the "Class Period" for this litigation. This legal action emerges because the lawsuit alleges Gossamer Bio made materially false and/or misleading statements, or failed to disclose critical information, particularly concerning its drug development prospects, leading to significant investor losses when the company's true operational status or trial outcomes became public. The urgency of the June 1, 2026, deadline is twofold: it provides a window for affected investors to formally join the class action to seek compensation for potential financial damages, and crucially, it is the cutoff for investors to petition the court to be appointed as a Lead Plaintiff, a role that empowers them to oversee the litigation process on behalf of the entire class.