GRI Bio shares surge 20% after-hours after announcing participation in Webull webinar on Feb 11 to update investors on pipeline and corporate developments.

GRI Bio surged 20% in after-hours trading following the announcement that it will participate in the Corporate Connect Webinar Series hosted by Webull Financial on February 11, 2026. The company will present a live video webcast featuring CEO Marc Hertz, highlighting its pipeline of immune cell modulators for inflammatory and autoimmune diseases. The event, aimed at engaging investors, likely spurred optimism around the company’s strategic visibility and pipeline progress, despite underlying financial challenges. While other reports noted the company’s cash constraints and negative cash return on invested capital, the immediate price reaction aligned with the webinar’s perceived potential to attract investor interest and underscore ongoing R&D efforts.