Pfizer (PFE) Stock After Hours: What’s Moving Shares After the Dec. 23, 2025 Close—and What to Watch Before Dec. 24’s Open
Pfizer (NYSE: PFE) ended Tuesday’s session (December 23, 2025) lower, then steadied in extended trading as investors digested a late-day safety headline tied to its hemophilia medicine Hympavzi (marstacimab). After-hours snapshot (as of 6:56 p.m. ET): PFE traded around $24.92,