Metsera Stock Skyrockets as Pfizer-Novo Clash in $9B Bidding War
Novo Nordisk launched a hostile bid for Metsera on Oct. 30, 2025, offering up to $9 billion and topping Pfizer’s earlier $7.3 billion deal. Metsera shares jumped about 19% in premarket trading. The board called Novo’s offer “superior,” giving Pfizer four days to respond. A law firm began investigating whether the original Pfizer deal was fair to shareholders.