Why Cogent Biosciences stock is down today after its FDA filing for bezuclastinib
NEW YORK, December 30, 2025, 14:40 ET — Regular session Shares of Cogent Biosciences, Inc. fell 2.7% to $36.88 on Tuesday after the biotech said it submitted a New Drug Application to the U.S. Food and Drug Administration for its drug candidate bezuclastinib in nonadvanced systemic mastocytosis. Yahoo Finance An NDA is the formal request asking the FDA to review a drug for marketing approval, a key inflection point for development-stage biotechs with no products on the market. U.S. Food and Drug Administration Systemic mastocytosis is a rare disorder marked by abnormal accumulation and activation of mast cells — immune