Merck & Company, Inc. (MRK) Stock News and Forecasts: FDA Fast-Track Signals, BMO Upgrade, and a New Keytruda–Padcev Win (Dec. 18, 2025)
December 18, 2025 — Merck & Company, Inc. (NYSE: MRK) is back in the spotlight for investors today as three threads converge: a fresh Wall Street upgrade tied to Merck’s post‑Keytruda strategy, a potentially meaningful FDA fast‑track development for two