Finance

France's Sanofi to acquire biotech firm Vicebio for $1.15 billion

Published by Global Banking & Finance Review

Posted on July 22, 2025

1 min read

· Last updated: January 22, 2026

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France's Sanofi to acquire biotech firm Vicebio for $1.15 billion
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(Reuters) -French pharmaceuticals company Sanofi said on Tuesday it would acquire British private biotechnology firm Vicebio for a total of $1.15 billion, expanding its respiratory vaccine portfolio.

Sanofi to Acquire Vicebio for $1.15 Billion, Expanding Vaccine Portfolio

Sanofi's Strategic Acquisition of Vicebio

(Reuters) -French pharmaceuticals company Sanofi said on Tuesday it would acquire British private biotechnology firm Vicebio for a total of $1.15 billion, expanding its respiratory vaccine portfolio.

Details of the Acquisition

Following the acquisition, Vicebio's non-mRNA candidate vaccine for treating respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) will be added to Sanofi's range.

Impact on Sanofi's Portfolio

The Vicebio deal includes a potential milestone payment of up to $450 million based on development and research achievements, and is expected to close in the fourth quarter of this year.

Future Prospects and Milestones

Sanofi will also obtain "Molecular Clamp" technology aimed at enabling quicker development of fully liquid combination vaccines that can be stored at standard refrigeration temperatures, eliminating the need for freezing or freeze-drying.

The British company is the latest in a string of acquisitions by Sanofi, which recently finalised an up to $9.5 billion deal for U.S.-based Blueprint Medicines Corporation.

Sanofi said that the acquisition will not impact its annual guidance.

(Reporting by Mateusz Rabiega; Editing by Jacqueline Wong, Kirsten Donovan)

Key Takeaways

  • Sanofi acquires Vicebio for $1.15 billion.
  • The acquisition expands Sanofi's vaccine portfolio.
  • Vicebio's non-mRNA RSV vaccine included in the deal.
  • Potential milestone payments up to $450 million.
  • Sanofi gains Molecular Clamp technology for vaccine development.

Frequently Asked Questions

What is an acquisition?
An acquisition is a corporate action in which one company purchases most or all of another company's shares to gain control of that company.
What is a vaccine portfolio?
A vaccine portfolio refers to the collection of vaccines that a pharmaceutical company develops, markets, and sells, aimed at preventing various diseases.
What is a milestone payment?
A milestone payment is a payment made when specific pre-defined events or achievements occur in a project, often used in contracts for development projects.
What is respiratory syncytial virus (RSV)?
Respiratory syncytial virus (RSV) is a common virus that causes respiratory infections, particularly in young children and infants.
What is human metapneumovirus (hMPV)?
Human metapneumovirus (hMPV) is a virus that can cause respiratory infections, particularly in children and the elderly.

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