
BMS Shares Jump on Reported AstraZeneca Tie-Up Worth About $400 Billion
Bristol Myers Squibb stock rose about 4% premarket after a Financial Times report that BMS and AstraZeneca discussed a potential $400 billion merger, while AstraZeneca ADRs fell. The deal would be one of the largest in pharma history and comes as 2026 sees a wave of big M&A activity, though analysts warned mega-deals can slow R&D productivity and pipeline progress.













