Boston Scientific announces strategic investment in MiRus LLC

Agreement includes exclusive option to acquire novel, balloon-expandable transcatheter aortic valve made with proprietary rhenium alloy MARLBOROUGH, Mass., May 18, 2026 /PRNewswire/ -- Boston Scientific Corporation (NYSE: BSX) today announced it has invested $1.5 billion in return for an approximately 34% equity stake in MiRus LLC, a privately-held company developing and commercializing proprietary biomaterials, implants and procedural solutions for the treatment of cardiovascular and orthopedic diseases, including the SIEGEL™ Balloon Expandable Transcatheter Aortic Valve Replacement (TAVR) system.