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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
CA
451
Cornerstone Advisors
North Carolina
$7.84M
AC
452
Armistice Capital
New York
$7.83M
NEI
453
Northwest & Ethical Investments
Ontario, Canada
$7.81M
CDDEC
454
Caisse Des Depots Et Consignations
France
$7.75M
CI
455
Cavalier Investments
Georgia
$7.71M
LSERS
456
Louisiana State Employees Retirement System
Louisiana
$7.6M
VA
457
Vident Advisory
Georgia
$7.59M
QCM
458
Qsemble Capital Management
New York
$7.58M
AI
459
Atria Investments
North Carolina
$7.56M
PF
460
Phoenix Financial
Israel
$7.45M
PM
461
Prosight Management
Texas
$7.43M
ACA
462
Aptus Capital Advisors
Alabama
$7.41M
P
463
&Partners
Tennessee
$7.37M
BLC
464
Brown, Lisle/Cummings
Rhode Island
$7.36M
Cambridge Investment Research Advisors
465
Cambridge Investment Research Advisors
Iowa
$7.32M
GIBU
466
Gulf International Bank (UK)
United Kingdom
$7.27M
BHCM
467
Brevan Howard Capital Management
Jersey
$7.21M
MSRPS
468
Maryland State Retirement & Pension System
Maryland
$7.19M
UB
469
UMB Bank
Missouri
$7.17M
NG
470
NWK Group
California
$7.15M
CG
471
Caprock Group
Idaho
$7.12M
FGP
472
Freestone Grove Partners
California
$7.07M
SCM
473
Stevens Capital Management
Pennsylvania
$7.06M
SAM
474
Securian Asset Management
Minnesota
$6.99M
MYAM
475
Meiji Yasuda Asset Management
Japan
$6.96M