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Argenx to acquire Unnatural Products for $1.15B

PUBLIC · ARGXNov 09, 2026

Acquiring Company

argenx

Acquired Company

Unnatural Products

AmsterdamSanta CruzBiotechnologyHealth CareTherapeuticsBiotechnology

Description

Argenx SE announced it will acquire biotech firm Unnatural Products for $550 million upfront plus contingent value rights tied to milestones, for a total potential value of about $1.15 billion. The acquisition follows a two-year multi-target research collaboration between the companies. Unnatural Products will continue operating from its Santa Cruz, California site within argenx's global research organization. The deal is expected to close by year-end, subject to customary closing conditions.

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Company Information

Company

argenx

Location

Amsterdam, North Holland, Netherlands

About

argenx SE is a biotech company that develops new therapies for severe autoimmune diseases and cancer. Their innovative approach focuses on harnessing the power of the immune system to combat diseases. With a strong pipeline and commitment to research, argenx is recognized as a leader in immunology.

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Frequently asked

Who acquired Unnatural Products?

Unnatural Products was acquired by argenx, based in Amsterdam. The deal was reported on November 9, 2026. argenx SE is a biotech company that develops new therapies for severe autoimmune diseases and cancer. Their innovative approach focuses on harnessing the power of the immune system to combat diseases. argenx is publicly traded (ARGX) and operates in Biotechnology.

When did argenx acquire Unnatural Products?

argenx's acquisition of Unnatural Products was reported on November 9, 2026. Argenx SE announced it will acquire biotech firm Unnatural Products for $550 million upfront plus contingent value rights tied to milestones, for a total potential value of about $1.15 billion. Fundz records the date the transaction was first publicly reported, sourced from filings and company announcements.

What does Unnatural Products do?

Unnatural Products, Inc. (UNP), a California biotech company, has developed a platform that addresses the complexities of medicinal chemistry in the macrocycle space through a combination of parallel experimentation and machine learning. It is privately held, operating in Biotechnology, and is based in Santa Cruz.

This company was part of an acquisition. Fundz tracks who bought whom, and who to call on both sides.

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