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Marlborough Today
By the People, for the People
Capital World Investors Trims Boston Scientific Holdings
Institutional investor reduces stake in medical device company by 6.6% in Q3
Published on Mar. 10, 2026
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Capital World Investors, a major institutional investor, reduced its position in Boston Scientific Corporation (NYSE:BSX) by 6.6% during the third quarter, according to a recent SEC filing. The fund now owns 26,648,948 shares, or 1.80% of the medical equipment provider's stock, valued at $2.6 billion.
Why it matters
Boston Scientific is a leading global medical device company, so changes in major institutional holdings can signal shifts in investor sentiment and impact the stock price. This reduction by Capital World Investors, one of the company's largest shareholders, is notable and could foreshadow broader concerns about Boston Scientific's outlook.
The details
According to the filing, Capital World Investors sold 1,875,820 shares of Boston Scientific during the third quarter. The fund now owns a 1.80% stake in the company, down from 1.92% previously. Boston Scientific's stock has faced headwinds in recent months amid legal and regulatory issues, including a federal probe and class action lawsuits related to product safety and disclosures.
- Capital World Investors reduced its Boston Scientific holdings during Q3 2025.
- The filing was made public on March 10, 2026.
The players
Capital World Investors
A major institutional investor and one of the largest shareholders of Boston Scientific Corporation.
Boston Scientific Corporation
A global medical device company that develops, manufactures and markets a broad portfolio of products used in less-invasive medical procedures.
The takeaway
The reduction in Capital World Investors' Boston Scientific holdings could signal broader concerns about the company's outlook, particularly amid ongoing legal and regulatory issues. Investors will be closely watching for any further changes in institutional ownership and the impact on the stock price.
