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Boston Scientific

1,766 hedge funds and large institutions have $130B invested in Boston Scientific in 2025 Q4 according to their latest regulatory filings, with 223 funds opening new positions, 671 increasing their positions, 680 reducing their positions, and 125 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding

Funds holding:

more ownership

Funds ownership:

1% less capital invested

Capital invested by funds: $131B → $130B (-$1.05B)

1% less repeat investments, than reductions

Existing positions increased: 671 | Existing positions reduced: 680

5% less funds holding in top 10

Funds holding in top 10: 3937 (-2)

Holders
1,766
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
37
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$987M
Puts
$872M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
CWM
426
Calamos Wealth Management
Illinois
$11.2M
William Blair & Company
427
William Blair & Company
Illinois
$11.1M
FNT
428
First National Trust
Pennsylvania
$11.1M
TRSOTSOK
429
Teachers Retirement System of the State of Kentucky
Kentucky
$11M
MSU
430
Mizuho Securities USA
New York
$11M
QT
431
Quantbot Technologies
New York
$10.9M
APM
432
Avidity Partners Management
Texas
$10.9M
AC
433
Armistice Capital
New York
$10.9M
AC
434
Allstate Corporation
Illinois
$10.7M
WF
435
Welch & Forbes
Massachusetts
$10.7M
GI
436
GAMCO Investors
Connecticut
$10.6M
BPWM
437
Badgley Phelps Wealth Managers
Washington
$10.5M
HP
438
HealthInvest Partners
Sweden
$10.4M
HFS
439
Hantz Financial Services
Michigan
$10.3M
GT
440
Glenmede Trust
Pennsylvania
$10.3M
CBUSF
441
Construction & Building Unions Superannuation Fund
Australia
$10.3M
MCM
442
Mill Capital Management
North Carolina
$10.2M
AssetMark Inc
443
AssetMark Inc
California
$10.1M
Nomura Holdings
444
Nomura Holdings
Japan
$10.1M
HWAM
445
Hennion & Walsh Asset Management
New Jersey
$9.88M
NPPM
446
North Point Portfolio Managers
Ohio
$9.86M
CA
447
Cornerstone Advisors
North Carolina
$9.84M
Mercer Global Advisors
448
Mercer Global Advisors
Colorado
$9.84M
M&T Bank
449
M&T Bank
New York
$9.83M
SWIG
450
Strategic Wealth Investment Group
Kentucky
$9.7M