Entero Therapeutics shares surge 11.62% premarket after announcing name change to GridAI Technologies and ticker GRDX following GRID AI acquisition.

Entero Therapeutics surged 11.62% in premarket trading following the announcement of its corporate name change to GridAI Technologies Corp and ticker symbol GRDX, effective December 1, 2025. The move aligns with the company’s acquisition of 100% of GRID AI Corp, a grid-edge AI software platform for energy management. The rebranding reflects a strategic pivot toward AI-driven energy solutions while retaining its biopharmaceutical operations, signaling a dual focus on gastrointestinal therapies and emerging energy infrastructure opportunities. The name change, emphasized as a “new chapter” by the interim CEO, likely fueled investor optimism about expanded market potential in high-growth AI and energy sectors.