Novo Nordisk makes $6.5 billion acquisition offer for Metsera (MTSR), declared superior to Pfizer's prior bid by Metsera's board and potentially triggering a bidding war for the obesity drug developer.
- Pfizer has 4 days to respond to this bid
- Mon 11/3: Pfizer files second lawsuit to block Novo Nordisk's Metsera acquisition with counter bid deadline tomorrow, and is set to report earnings where management will address key strategic questions.
Oct 30, 2025 : Pfizer Addresses Proposal for Metsera
NEW YORK--(BUSINESS WIRE)--Pfizer Inc. (NYSE: PFE) is aware of the reckless and unprecedented proposal by Novo Nordisk A/S (NYSE: NVO) to acquire Metsera, Inc. (NASDAQ: MTSR). It is an attempt by a company with a dominant market position to suppress competition in violation of law by taking over an emerging American challenger. It is also structured in a way to circumvent antitrust laws and carries substantial regulatory and executional risk. The proposal is illusory and cannot qualify as a superior proposal under Pfizer’s agreement with Metsera, and Pfizer is prepared to pursue all legal avenues to enforce its rights under its agreement.













