Boston Scientific Invests $1.5B in MiRus for TAVR Technology

Boston Scientific Corporation 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. As part of the investment agreement, Boston Scientific also received an exclusive option to acquire the MiRus TAVR system, subject to additional payments and the completion of certain milestones. The SIEGEL technology is built on a proprietary rhenium alloy and is the first nickel-free, balloon-expandable TAVR valve intended to restore function and normal blood flow of severely narrowed aortic valves.

"The occurrence and recognition of aortic stenosis is growing rapidly and our investment in MiRus continues our pursuit to bring a differentiated TAVR system into our portfolio that we anticipate may improve outcomes for patients living with this life-threatening disease," said Lance Bates, executive vice president and president, Interventional Cardiology and Vascular Therapies, Boston Scientific. "Built upon years of research and proprietary technology, we believe the distinctive design and impressive early clinical results of the SIEGEL valve may set it apart from currently available technology, potentially providing physicians an advanced option to treat a wide array of patients."

"The SIEGEL valve is a promising technology and has received enthusiastic feedback from physician investigators for its less invasive delivery, nickel-free construct, precise placement resulting from a lack of foreshortening and excellent hemodynamics," said Jay Yadav, M.D., founder and chief executive officer, MiRus. "This collaborative relationship with Boston Scientific alongside the exceptional capabilities of our Atlanta-based team can further accelerate our progress towards broad accessibility for patients and physicians for what we believe will be a transformational treatment."

The investment in MiRus is expected to be immaterial to adjusted earnings per share for Boston Scientific in 2026. Boston Scientific may exercise the option to acquire the MiRus TAVR business by making additional aggregate cash payments totaling $3 billion, at Boston Scientific's option following MiRus' achievement of certain clinical and regulatory milestones, that would result in 100% ownership of the TAVR business, subject to customary closing conditions. If Boston Scientific exercises the option, MiRus will have the right to receive additional payments based on net sales of the SIEGEL TAVR valve over a specified period and Boston Scientific will also have an exclusive option to acquire mitral and tricuspid replacement valve assets from MiRus for an additional payment.