Pfizer Acquires Obesity Treatment Specialist Metsera for $10 Billion Following Intense Bidding War with Novo Nordisk

Web Editor

November 13, 2025

Background on Metsera and its Significance

Metsera, a US-based biotechnology company specializing in obesity treatments, has been acquired by Pfizer for approximately $10 billion. The deal comes after an intense bidding war with Danish pharmaceutical giant Novo Nordisk.

Who is Metsera?

Metsera is a US-based biotechnology company that focuses on developing innovative treatments for obesity. The company has been at the forefront of research and development in this rapidly growing market, with a mission to improve patient outcomes.

Why is Metsera Relevant?

Metsera’s expertise in obesity treatments makes it a valuable asset for Pfizer, allowing the pharmaceutical giant to expand its presence in the weight loss medication market. This acquisition positions Pfizer to influence the future of therapeutic areas with significant growth potential.

The Bidding War Between Pfizer and Novo Nordisk

Pfizer and Novo Nordisk engaged in a fierce bidding war for Metsera, with Novo Nordisk eventually withdrawing its offer on Saturday after careful consideration.

Pfizer’s Offer

Pfizer offered up to $86.25 per Metsera share, valuing the deal at approximately $10 billion. The company paid $65.60 per Metsera share in cash, totaling around $7 billion. Additional potential income from stock rights amounted to roughly $20.65 per share.

Novo Nordisk’s Interest

Novo Nordisk, known for producing Wegovy (for weight loss) and Ozempic (for diabetes with weight-loss benefits), had shown interest in acquiring Metsera. Their unsolicited offer of between $6 billion and $9 billion, subject to certain conditions, sparked concerns about potential antitrust implications.

Bidding War Details

The bidding war intensified as both Pfizer and Novo Nordisk submitted competing offers. Eventually, Novo Nordisk decided not to increase its offer following a thorough review, leading to Pfizer’s successful acquisition of Metsera.

Impact on Pfizer and the Market

The acquisition is expected to affect Pfizer’s profits until 2030, as the company invests in promising products in late-stage development. Metsera, now a Pfizer subsidiary, had previously agreed to a $4.9 billion acquisition by the US group in September.

Global Health Context

According to the World Health Organization, over 1 billion people were obese and more than 800 million suffered from diabetes in 2022, highlighting the importance of Metsera’s work in developing effective obesity treatments.

Key Questions and Answers

  • What is Metsera? Metsera is a US-based biotechnology company specializing in obesity treatments.
  • Why did Pfizer acquire Metsera? Pfizer aims to expand its presence in the weight loss medication market and influence therapeutic areas with significant growth potential.
  • What was the bidding war about? The bidding war was between Pfizer and Novo Nordisk for the acquisition of Metsera, with both companies submitting competing offers.
  • What are the potential implications for Pfizer? The acquisition is expected to affect Pfizer’s profits until 2030, as the company invests in promising products in late-stage development.
  • Why is obesity treatment important? With over 1 billion people obese and more than 800 million suffering from diabetes globally, effective obesity treatments are crucial for public health.