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Boston Scientific

1,691 hedge funds and large institutions have $131B invested in Boston Scientific in 2025 Q3 according to their latest regulatory filings, with 177 funds opening new positions, 762 increasing their positions, 548 reducing their positions, and 133 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

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:

0.88% less ownership

Funds ownership: 91.29%90.41% (-0.88%)

7% less funds holding in top 10

Funds holding in top 10: 4239 (-3)

10% less capital invested

Capital invested by funds: $145B → $131B (-$14.2B)

Holders
1,691
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
39
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.13B
Puts
$989M
Net Calls
Net Calls Change

Top Buyers

1 +$671M
2 +$547M
3 +$358M
4
Millennium Management
Millennium Management
New York
+$357M
5
Citadel Advisors
Citadel Advisors
Florida
+$342M
Name Holding Trade Value Shares
Change
Change in
Stake
VC
1701
Vestor Capital
Illinois
PFM
1702
Premier Fund Managers
United Kingdom
LOAME
1703
Lombard Odier Asset Management (Europe)
United Kingdom
RG
1704
Redmile Group
California
PAMP
1705
Polar Asset Management Partners
Ontario, Canada
NC
1706
NewSquare Capital
Pennsylvania
ACM
1707
Aubrey Capital Management
United Kingdom
NIP
1708
Nicholas Investment Partners
California
LAM
1709
LECAP Asset Management
United Kingdom
BCM
1710
Barometer Capital Management
Ontario, Canada
ORAM
1711
One River Asset Management
Connecticut
QIM
1712
Quantitative Investment Management
Virginia
UFF
1713
USA Financial Formulas
Michigan
DWA
1714
Dorsey Wright & Associates
California
CA
1715
Cache Advisors
California
CC
1716
Centiva Capital
New York
AG
1717
Algert Global
California
WLG
1718
Williamson Legacy Group
Indiana
APC
1719
Aspire Private Capital
North Carolina
LIP
1720
Lighthouse Investment Partners
Florida
OWA
1721
Outlook Wealth Advisors
Texas
IC
1722
Iconiq Capital
California
NRD
1723
Nebula Research & Development
New York
SIA
1724
Strategic Investment Advisors
Michigan
EAM
1725
Eschler Asset Management
United Kingdom