REGN ▲ +2.2% - Regeneron Pharmaceuticals, Inc. $REGN - Pasatru™ (garetosmab-grts) Demonstrates Zero New Heterotopic Ossification (HO) Lesions in Adult Fibrodysplasia Ossificans Progressiva (FOP) Patients During OPTIMA Trial Extension 12-OCT-2026 12:06 PM ET