Form 8-K · Current Report · Filed 2026-05-18
Boston Scientific Invests $1.5 Billion in MiRus LLC for TAVR System Access
On May 18, 2026, Boston Scientific Corporation announced a strategic investment of $1.5 billion in MiRus LLC, acquiring a 33.75% equity stake and securing an exclusive option to acquire MiRus's TAVR business for an additional $3.0 billion, subject to clinical and regulatory milestones.
- Filer
- Boston Scientific Corporation BSX · NYSE
- Filed
- Accession
- 0000885725-26-000041
- CIK
- 0000885725
- Signal
- Medium impactHealthcare
- Source
- Official filing on sec.gov ↗
Details
This investment aims to bring a novel, balloon-expandable transcatheter aortic valve replacement (TAVR) system into Boston Scientific's portfolio, potentially improving patient outcomes for aortic stenosis. The SIEGEL TAVR system, developed by MiRus, is built on a proprietary rhenium alloy and is designed to offer less invasive delivery and excellent hemodynamics.
Items reported
Reported Item
Market reaction
Close before filing
$52.68
Next session
+7.8%
Since filing
-11.3%
Latest close
$46.73
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Previous filings from BSX reporting the same item, with the next session's move:
Insider tape
Within 45 days of this filing, BSX insiders reported 22 Form 4 transactions — net buying of $511K.
About Boston Scientific Corporation
Boston Scientific Corporation, a leading global medical device company, is renowned for developing and supplying innovative health solutions. Its primary function is to design, manufacture, and market medical devices used in interventional medical specialties such as cardiology, peripheral interventions, cardiac rhythm management, endoscopy, urology, and neuromodulation. The company's product offerings significantly impact sectors like health care, particularly those focusing on minimally invasive treatments. Boston Scientific's products help improve the quality of patient care and reduce the need for major surgery, thus playing a crucial role in modern healthcare systems. Their devices contribute to procedures that are less invasive, more effective, and often more economic, supporting better patient outcomes and quicker recovery times. Founded in 1979 and headquartered in Marlborough, Massachusetts, Boston Scientific provides its products to healthcare providers and institutions worldwide. In the financial markets, Boston Scientific Corporation holds significant influence as a major player in the healthcare industry, contributing to advancements in medical technology and shaping the future of patient care through research and development. Its presence underscores the importance of innovation in medical devices and its role in enhancing healthcare delivery.
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