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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
OQS
426
Occudo Quantitative Strategies
Florida
$9.31M
LOAMS
427
Lombard Odier Asset Management (Switzerland)
Switzerland
$9.13M
EAM
428
Exane Asset Management
France
$9.12M
RBI
429
Raiffeisen Bank International
Austria
$9.08M
KRS
430
Kentucky Retirement Systems
Kentucky
$9.05M
LSA
431
L & S Advisors
California
$8.89M
HC
432
Headland Capital
South Carolina
$8.85M
GAM
433
Generali Asset Management
Italy
$8.76M
Dodge & Cox
434
Dodge & Cox
California
$8.68M
CGH
435
Crossmark Global Holdings
Texas
$8.54M
SCM
436
Sirios Capital Management
Massachusetts
$8.53M
BFG
437
Bleakley Financial Group
New Jersey
$8.53M
HIMCH
438
Hartford Investment Management Co (HIMCO)
Connecticut
$8.49M
SA
439
Sanctuary Advisors
Indiana
$8.46M
BCM
440
Brasada Capital Management
Texas
$8.43M
QIM
441
Quest Investment Management
Oregon
$8.41M
SPC
442
Spirepoint Private Client
Florida
$8.4M
AF
443
Alerus Financial
North Dakota
$8.28M
NB
444
Norinchukin Bank
Japan
$8.24M
TAM
445
Thematics Asset Management
France
$8.14M
IMCOOI
446
Investment Management Corp of Ontario (IMCO)
Canada
$8.11M
AAB
447
ABN AMRO Bank
Netherlands
$7.98M
FAT
448
First American Trust
California
$7.9M
M&T Bank
449
M&T Bank
New York
$7.9M
CA
450
Cornerstone Advisors
North Carolina
$7.84M