Pfizer stock dips as U.S. vaccine policy fight rattles demand outlook
Pfizer shares fell 0.6% to $25.42 in late-morning trading Thursday as U.S. vaccine policy changes fueled uncertainty. Sanofi warned of weaker U.S. vaccine demand; Pfizer’s CEO criticized the new recommendations. Moderna and Merck also traded lower. Investors await Pfizer’s Feb. 3 results for updates on 2026 outlook and new product pipeline.