Merck Stock Surges 46% to 52-Week High on Post-Keytruda Pipeline Strength
Feb 13, 2026
Merck stock reached a 52-week high at $122.69, rising 46.25% over 12 months and 7.4% in the past month following strong Q4 results and improved long-term pipeline outlook beyond Keytruda's 2028 patent expiration.