Pfizer has agreed to buy weight-loss drug startup Metsera in a deal that could be worth more than $10 billion, besting rival Novo Nordisk following a heated bidding warWSJ • 11/08/25
Pfizer and Metsera Enter into Merger Agreement Amendment; Metsera's Board of Directors Reaffirms Support of Merger with PfizerPRNewsWire • 11/08/25
Pfizer sweetens offer for Metsera in bidding war against Novo, Bloomberg News reportsReuters • 11/08/25
Pfizer Discusses Drug Pricing Deal, Metsera Buyout Dispute on Q3 CallZacks Investment Research • 11/07/25
'It's Getting Ugly,' Analyst Says As Pfizer Escalates Its Gloves-Off Fight For MetseraInvestors Business Daily • 11/06/25
Pfizer is preparing to sweeten its offer again for Metsera, the weight-loss drug startup at the center of a bidding war that also involves Novo NordiskWSJ • 11/05/25
Healthy Returns: What to know about Pfizer and Novo Nordisk's bidding war over obesity biotech MetseraCNBC • 11/05/25