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Boston Scientific

1,690 hedge funds and large institutions have $130B invested in Boston Scientific in 2025 Q3 according to their latest regulatory filings, with 177 funds opening new positions, 761 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:

1.08% less ownership

Funds ownership: 91.29%90.21% (-1.1%)

7% less funds holding in top 10

Funds holding in top 10: 4239 (-3)

10% less capital invested

Capital invested by funds: $145B → $130B (-$14.5B)

Holders
1,690
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
AC
451
Armistice Capital
New York
$7.83M
NEI
452
Northwest & Ethical Investments
Ontario, Canada
$7.81M
CDDEC
453
Caisse Des Depots Et Consignations
France
$7.75M
CI
454
Cavalier Investments
Georgia
$7.71M
LSERS
455
Louisiana State Employees Retirement System
Louisiana
$7.6M
VA
456
Vident Advisory
Georgia
$7.59M
QCM
457
Qsemble Capital Management
New York
$7.58M
AI
458
Atria Investments
North Carolina
$7.56M
PF
459
Phoenix Financial
Israel
$7.45M
PM
460
Prosight Management
Texas
$7.43M
ACA
461
Aptus Capital Advisors
Alabama
$7.41M
P
462
&Partners
Tennessee
$7.37M
BLC
463
Brown, Lisle/Cummings
Rhode Island
$7.36M
Cambridge Investment Research Advisors
464
Cambridge Investment Research Advisors
Iowa
$7.32M
GIBU
465
Gulf International Bank (UK)
United Kingdom
$7.27M
BHCM
466
Brevan Howard Capital Management
Jersey
$7.21M
MSRPS
467
Maryland State Retirement & Pension System
Maryland
$7.19M
UB
468
UMB Bank
Missouri
$7.17M
NG
469
NWK Group
California
$7.15M
CG
470
Caprock Group
Idaho
$7.12M
FGP
471
Freestone Grove Partners
California
$7.07M
SCM
472
Stevens Capital Management
Pennsylvania
$7.06M
SAM
473
Securian Asset Management
Minnesota
$6.99M
MYAM
474
Meiji Yasuda Asset Management
Japan
$6.96M
FMI
475
Factory Mutual Insurance
Massachusetts
$6.94M