Merck (MRK) stock today: $32 billion Revolution talks and CDC vaccine shift put Feb. 3 in play
New York, January 9, 2026, 12:09 EST — Regular session Merck & Co Inc shares were up about 0.4% at $111.41 on Friday as investors weighed a report that the drugmaker is in talks to buy cancer biotech Revolution Medicines in a deal valued at $28 billion to $32 billion. Revolution shares jumped nearly 16% in extended trading on Thursday after the Financial Times report, which said talks were not final and could still take weeks, with other large drugmakers still circling; Merck and Revolution did not respond to requests for comment. The potential acquisition would be the biggest in