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
83
Institutional Conviction
Strong accumulation · 5 buying vs 1 selling last quarter
75
Macro Tailwind
Macro conditions are mixed for this sector
55
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, 5 bought and 1 sold (83% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 55/100 in a Squeeze regime). 5 congressional purchases, 2 sales disclosed in the last 6 months.

Supporting evidence
  • +5 tracked investors added or increased positions last quarter (Paul Tudor Jones, Izzy Englander, Ken Griffin, …)
  • +7 tracked investors reported holding BSX at their latest filing
  • +Macro Health is 52/100 in a Squeeze regime — historically acceptable for Health Caresource
  • +5 congressional purchases disclosed in the last 6 months
Contradicting evidence — always shown
  • −1 tracked investor reduced or exited last quarter (1 reduced, 0 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 8/4/2026.

About BOSTON SCIENTIFIC CORP (BSX)

BOSTON SCIENTIFIC CORP (BSX) appears in the most recent 13F filings of 7 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 12 new positions, 0 increased, 2 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in BSX

86
/100
Strong Institutional Accumulation
Added / Increased12
Reduced2
Exited0
BearishBullish
Crowded Trade Score™

How many top investors track BSX

47
/100
Moderate Interest
7investors

Several tracked investors have exposure.

UndiscoveredCrowded
151015+

BSX Ownership Composition

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

Dominant Type
Other
74% of tracked value
Institutions
7
tracked investors
Total Reported
$1.4B
combined 13F value
Sectors2
  • Other74.0%
  • Hedge Funds26.0%
Other(6)
74.0%
Hedge Funds(1)
26.0%

Tracked investors reporting BSX

  • Izzy EnglanderMar 31, 2026
    Millennium Management
    Shares
    5.3M
    Value
    $303.5M
    % Portfolio
    0.13%
  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    6.7M
    Value
    $422.9M
    % Portfolio
    0.07%
  • Steve CohenMar 31, 2026
    Point72 Asset Management
    Shares
    5.8M
    Value
    $365.9M
    % Portfolio
    0.47%
  • Andreas HalvorsenDec 31, 2025
    Viking Global Investors
    Shares
    2.5M
    Value
    $239.3M
    % Portfolio
    0.64%
  • Paul Tudor JonesMar 31, 2026
    Tudor Investment Corp
    Shares
    1.1M
    Value
    $66.4M
    % Portfolio
    0.12%
  • Steve MandelMar 31, 2026
    Lone Pine Capital
    Shares
    104.7K
    Value
    $6.6M
    % Portfolio
    0.05%
  • Ray DalioMar 31, 2026
    Bridgewater Associates
    Shares
    77K
    Value
    $4.8M
    % Portfolio
    0.02%

Recent activity

Frequently asked questions

How many institutional investors hold BSX?
7 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 12 new positions, 0 increased, 2 reduced, and 0 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.
BSX (BOSTON SCIENTIFIC CORP) — Institutional Holders & 13F — InvestorLens