Filing Details
Assenagon Asset Management S.A., a registered investment adviser, increased its position in Boston Scientific Corporation (NYSE:BSX) by 61.4% during Q3 2026, according to its most recent 13F filing with the Securities and Exchange Commission.
The firm purchased an additional 2,560,904 shares of the Healthcare company, bringing its total holdings to 6,734,463 shares valued at approximately $294.0M as of the filing date.
Market Context
Boston Scientific Corporation's stock currently trades at $43.99 with a market capitalization of $136.0B.
An increase in an existing position suggests Assenagon Asset Management S.A. has growing conviction in Boston Scientific Corporation's trajectory. Institutional investors typically add to positions when they believe the stock still has upside relative to their price target, or when the company's fundamentals have improved since their initial purchase.
Healthcare stocks have attracted institutional attention as an aging population drives long-term demand. Boston Scientific Corporation operates in a sector where regulatory developments and pipeline progress can significantly impact institutional positioning.
The size of this position — $294.0 million — places it among the more significant institutional holdings in Boston Scientific Corporation. Large positions like this can influence trading dynamics and are closely watched by market participants tracking smart money flows.
Investors should note that 13F filings reflect holdings as of the end of the reporting quarter and are filed up to 45 days later. The position may have changed since the filing date. 13F data is most useful when analyzed alongside other signals such as insider transactions, analyst ratings, and fundamental trends.
Related Tools: Insider Trades Tracker | View BSX Stock Page
Frequently Asked Questions
What is a 13F filing?
A 13F filing is a quarterly SEC report required for institutional managers with over $100 million in assets. It discloses equity holdings, providing transparency into how firms like Assenagon Asset Management S.A. position their portfolios.
How can I track institutional ownership of BSX?
View all institutional holders on our BSX institutional ownership page.