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SERB Pharmaceuticals acquires Y-mAbs Therapeutics

PRIVATESep 16, 2025

Acquiring Company

SERB Pharmaceuticals

Acquired Company

Y-MAbs

ParisNew YorkManufacturingBiotechnologyHealth CareBiotechnology

Description

SERB Pharmaceuticals has completed its acquisition of Y-mAbs Therapeutics, enhancing its Rare Oncology portfolio. The acquisition allows SERB to utilize Y-mAbs' expertise in oncology and expand partnerships in the US oncology community. Y-mAbs has become a wholly owned subsidiary of SERB following the successful tender offer. The acquisition signals a commitment to advancing treatments for rare and pediatric cancers.

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Company Information

Company

SERB Pharmaceuticals

Location

40 Avenue George V

Paris, Ile-de-France, France

About

SERB is a global specialty pharmaceutical company with a growing portfolio of medicines for emergency care and rare diseases. For over 30 years we have made treating these complex and life-threatening conditions possible, supporting clinicians, healthcare systems and governments while offering hope to patients and their families. SERB has the broadest antidote portfolio in the world, including medical countermeasures for chemical, biological, radiological and nuclear (CBRN) risks. As a fully integrated company, we have the experience and capabilities to acquire, develop, and manufacture our medicines to the highest standards, and make them available worldwide through our secure supply chain. SERB operates in the US as BTG Pharmaceuticals. Learn more at https://SERB.com.

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Frequently asked

Who acquired Y-MAbs?

Y-MAbs was acquired by SERB Pharmaceuticals, based in Paris. The deal was reported on September 16, 2025. SERB is a global specialty pharmaceutical company with a growing portfolio of medicines for emergency care and rare diseases. SERB Pharmaceuticals is privately held and operates in Manufacturing.

When did SERB Pharmaceuticals acquire Y-MAbs?

SERB Pharmaceuticals's acquisition of Y-MAbs was reported on September 16, 2025. SERB Pharmaceuticals has completed its acquisition of Y-mAbs Therapeutics, enhancing its Rare Oncology portfolio. The acquisition allows SERB to utilize Y-mAbs' expertise in oncology and expand partnerships in the US oncology community. Fundz records the date the transaction was first publicly reported, sourced from filings and company announcements.

What does Y-MAbs do?

Y-MAbs is focused on developing innovative oncology treatments targeting cancer and associated disorders. The company works on advanced therapeutics and has several products in different stages of development. It is privately held, operating in Biotechnology, and is based in New York.

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