InvestorLens

BSX — BOSTON SCIENTIFIC CORP

Health Care · Medical Devices

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For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying BSX?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence
67
Institutional Conviction
Mixed · 4 buying vs 2 selling last quarter
47
Macro Tailwind
Macro conditions are mixed for this sector
53
Congressional Activity
5 congressional purchases, 2 sales disclosed in the last 6 months
Why? — Evidence & Confidence ▾

Of 6 tracked investors who changed their BSX position last quarter, 4 bought and 2 sold (67% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 53/100 in a Overheat regime). 5 congressional purchases, 2 sales disclosed in the last 6 months.

Supporting evidence
  • +4 tracked investors added or increased positions last quarter (Izzy Englander, Ken Griffin, Ray Dalio, …)
  • +5 tracked investors reported holding BSX at their latest filing
  • +5 congressional purchases disclosed in the last 6 months
Contradicting evidence — always shown
  • −2 tracked investors reduced or exited last quarter (1 reduced, 1 sold out)
  • −13F data is disclosed up to 45 days after quarter end — positions may have changed since
Know the limits
  • · 13F disclosure lag (up to 45 days)
  • · Tracked investors are a sample, not the whole market
  • · Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.

About BOSTON SCIENTIFIC CORP (BSX)

BOSTON SCIENTIFIC CORP (BSX) appears in the most recent 13F filings of 5 tracked institutional investors. BOSTON SCIENTIFIC CORP is classified in the Health Care sector (Medical Devices industry). The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $1.2B. Across recent filings, tracked investors recorded 8 new positions, 20 increased, 23 reduced, and 4 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in BSX

51
/100
Mixed Activity
Added / Increased28
Reduced23
Exited4
BearishBullish
Crowded Trade Score™

How many top investors track BSX

33
/100
Emerging Interest
5investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

BSX Ownership Composition

How BOSTON SCIENTIFIC CORP is held across tracked investor types, based on reported 13F positions.

Dominant Type
Multi-Strategy / Quant
87% of tracked value
Institutions
5
tracked investors
Total Reported
$806M
combined 13F value
Types2
  • Multi-Strategy / Quant87.2%
  • Macro12.8%
Multi-Strategy / Quant(3)
87.2%
Macro(2)
12.8%

Tracked investors currently reporting BSX

3 tracked investors have since exited this position — listed separately below.

  • Izzy EnglanderJun 30, 2026
    Millennium Management
    Shares
    5.9M
    Value
    $232.1M
    % Portfolio
    0.08%
  • Ken GriffinJun 30, 2026
    Citadel Advisors
    Shares
    10.2M
    Value
    $433.4M
    % Portfolio
    0.05%
  • Steve CohenJun 30, 2026
    Point72 Asset Management
    Shares
    877.1K
    Value
    $37.4M
    % Portfolio
    0.04%
  • Ray DalioJun 30, 2026
    Bridgewater Associates
    Shares
    442K
    Value
    $18.9M
    % Portfolio
    0.08%
  • Paul Tudor JonesJun 30, 2026
    Tudor Investment Corp
    Shares
    2M
    Value
    $84.1M
    % Portfolio
    0.12%

Previously held BSX

These investors reported BSX in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.

InvestorFirmLast reported sharesValue thenLast held
Andreas HalvorsenViking Global Investors2.5M$239.3MDec 31, 2025
George SorosSoros Fund Management350K$29.3MSep 30, 2024
Steve MandelLone Pine Capital201.7K$19.2MDec 31, 2025

Recent activity

Frequently asked questions

How many institutional investors hold BSX?
5 tracked institutional investors disclosed a position in BSX (BOSTON SCIENTIFIC CORP) in their most recent 13F filing.
Who is the largest institutional holder of BSX?
Izzy Englander, Millennium Management, holds the largest disclosed position in BSX, valued at $1.2B.
Did institutional ownership of BSX increase or decrease?
Across recent 13F filings, tracked investors recorded 8 new positions, 20 increased, 23 reduced, and 4 fully exited BSX.
What sector is BSX in?
BOSTON SCIENTIFIC CORP is classified in the Health Care GICS sector, Medical Devices industry.
Where does this BSX ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.