Biogen IncBIIB
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Biogen completes acquisition of RayThera, strengthening immunology portfolio.

Biogen has completed its acquisition of RayThera Inc., a privately held biotechnology company focused on small-molecule immunology therapies. The deal strengthens Biogen's immunology portfolio with multiple assets, including a lead program that entered Phase 1 development in July 2026. Biogen's Executive Vice President and Head of Development Priya Singhal said the acquisition highlights strong execution on the company's open innovation model and continued investment in immunology as a strategic growth area.
Biogen IncBiogen completes acquisition of RayThera, strengthening immunology portfolio.
RayThera is acquired by Biogen, providing value to its shareholders.