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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
PS
701
Principal Securities
Iowa
$2.28M
KeyBank National Association
702
KeyBank National Association
Ohio
$2.27M
MFS
703
Mattson Financial Services
Michigan
$2.25M
SWM
704
Spire Wealth Management
Virginia
$2.25M
SCA
705
Snowden Capital Advisors
New York
$2.24M
WR
706
WD Rutherford
Oregon
$2.23M
FRM
707
Fox Run Management
Connecticut
$2.21M
VFA
708
Valeo Financial Advisors
Indiana
$2.21M
FC
709
Farringdon Capital
United Kingdom
$2.2M
QPBE
710
Quintet Private Bank (Europe)
Luxembourg
$2.18M
SWP
711
Stratos Wealth Partners
Ohio
$2.17M
ECM
712
Eisler Capital Management
United Kingdom
$2.17M
AAM
713
Azzad Asset Management
Virginia
$2.16M
SAM
714
Sectoral Asset Management
Quebec, Canada
$2.16M
SC
715
Savant Capital
Illinois
$2.15M
PIMJS
716
PKO Investment Management Joint-Stock
Poland
$2.15M
SC
717
Stance Capital
Massachusetts
$2.15M
IWC
718
Integrated Wealth Concepts
Massachusetts
$2.14M
SFP
719
Shepherd Financial Partners
Massachusetts
$2.14M
PWG
720
Portside Wealth Group
Utah
$2.13M
SAI
721
Systematic Alpha Investments
New Jersey
$2.12M
BONH
722
Bank of New Hampshire
New Hampshire
$2.11M
WPC
723
Wedmont Private Capital
Pennsylvania
$2.11M
HCA
724
Harbor Capital Advisors
Illinois
$2.11M
VVP
725
Venture Visionary Partners
Ohio
$2.09M