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Genmab to buy Dutch cancer drugmaker Merus for $8 billion

Published by Global Banking & Finance Review

Posted on September 29, 2025

2 min read

· Last updated: January 21, 2026

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OSLO (Reuters) -Denmark's Genmab has agreed to acquire Merus NV, a Nasdaq-listed Dutch biotech firm developing a head-and-neck cancer drug, for $8 billion in cash, the two companies said in a

Genmab to buy Dutch cancer drugmaker Merus for $8 billion

Genmab's Strategic Acquisition of Merus

OSLO (Reuters) -Denmark's Genmab has agreed to acquire Merus NV, a Nasdaq-listed Dutch biotech firm developing a head-and-neck cancer drug, for $8 billion in cash, the two companies said in a statement on Monday.

Genmab will pay $97 per share for Merus, the companies said, a 41% premium over Friday's closing price in New York trade.

Merus is currently running two Phase 3 trials on the petosemtamab drug for head-and-neck cancer, with interim readouts of one or both trials anticipated in 2026 and potential market launch the following year, they said.

Details of the Acquisition

"It has the potential to significantly accelerate our evolution into a global biotechnology leader by providing durable growth for the company well into the next decade," Genmab CEO Jan van de Winkel said in the statement.

"With our proven track record of success, both in clinical development and in commercialisation, we are confident that we will be able to unlock the promise of petosemtamab."

Implications for Genmab's Pipeline

The deal would add the treatment to Genmab's late-stage pipeline of drug candidates, aligning with the Danish group's expertise in antibody therapy development and commercialisation in oncology, the companies said.

Approval and Future Prospects

"Following the closing of the transaction, Genmab will have four proprietary programs expected to drive multiple new drug launches by 2027," the companies said in the statement.

The planned transaction was unanimously approved by the boards of directors of both companies, the groups said.

(Reporting by Terje Solsvik in Oslo and Rajveer Singh Pardesi in Bengaluru; Editing by Leslie Adler, Tom Hogue and Louise Heavens)

Key Takeaways

  • Genmab acquires Merus for $8 billion.
  • Merus develops head-and-neck cancer drug petosemtamab.
  • Deal adds to Genmab's late-stage oncology pipeline.
  • Boards of both companies unanimously approved the deal.
  • Potential drug market launch anticipated in 2027.

Frequently Asked Questions

What is an acquisition?
An acquisition occurs when one company purchases most or all of another company's shares to gain control. This can lead to increased market share and operational efficiencies.
What is a cash acquisition?
A cash acquisition is a transaction where the buyer pays for the target company entirely in cash, as opposed to using stock or other forms of payment.
What is a premium in acquisitions?
A premium in acquisitions refers to the amount by which the purchase price exceeds the market value of a company's shares, often used to incentivize shareholders to sell.

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