Mario Nawfal reports AstraZeneca is in talks to merge with Bristol Myers Squibb in a potential $400 billion deal, a combination that would create the world’s fo

Mario Nawfal reports AstraZeneca is in talks to merge with Bristol Myers Squibb in a potential $400 billion deal, a combination that would create the world’s fourth-largest drugmaker by market value. AstraZeneca resisted a major bid in 2014.