Pfizer has acquired Metsera for $4.9bn, as the drugmaker targets longer-lasting glucagon-like peptide-1 receptor agonists (GLP-1RAs) to cement market share in the burgeoning weight loss treatment sector. Pfizer has agreed to buy all of Metsera’s shares for a price of$47.50 each, representing a 43% premium to Metsera’s closing share price of $33.32 on 19 September. The deal, forecast to close in Q4 2025, also includes potential additional payments of up to$22.50 per share in cash tied to three specific c ...