Novartis Acquires Anthos Therapeutics for Up to $3.1 Billion

February 11, 2025

Novartis has completed the acquisition of Anthos Therapeutics, a Blackstone Life Sciences–backed clinical-stage biopharmaceutical company, in a deal valued at up to $3.1 billion, including $925 million paid upfront. The acquisition gives Novartis ownership of abelacimab, a Phase 3 factor XI inhibitor being developed to prevent stroke and cancer-associated thrombosis, with remaining milestone payments contingent on regulatory and commercial outcomes.

Buyers
Novartis
Targets
Anthos Therapeutics, Inc.
Sellers
Anthos shareholders, Blackstone Life Sciences, Novo Holdings
Industry
Biotechnology
Location
Massachusetts, United States
Transaction Type
Buyout

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