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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
FMI
476
Factory Mutual Insurance
Massachusetts
$6.94M
WA
477
Waverly Advisors
Alabama
$6.9M
BAMCO Inc
478
BAMCO Inc
New York
$6.83M
MGM
479
Miura Global Management
New York
$6.83M
SGH
480
Sivik Global Healthcare
Connecticut
$6.83M
SEIA
481
Signature Estate & Investment Advisors
California
$6.83M
SAM
482
Silvercrest Asset Management
New York
$6.81M
MF
483
Magnetar Financial
Illinois
$6.78M
Walleye Trading
484
Walleye Trading
New York
$6.71M
AIM
485
Aigen Investment Management
New York
$6.7M
EAM
486
EdenTree Asset Management
United Kingdom
$6.63M
KOCAA
487
Knights of Columbus Asset Advisors
Connecticut
$6.61M
CB
488
Commerce Bank
Missouri
$6.6M
BWL
489
Bogart Wealth LLC
Virginia
$6.6M
NMERB
490
New Mexico Educational Retirement Board
New Mexico
$6.53M
TGIA
491
Torrey Growth & Income Advisors
California
$6.52M
Envestnet Portfolio Solutions
492
Envestnet Portfolio Solutions
Illinois
$6.51M
MGP
493
Metis Global Partners
California
$6.48M
GCM
494
Graham Capital Management
Connecticut
$6.47M
ET
495
Entropy Technologies
New York
$6.37M
ETC
496
Exchange Traded Concepts
Oklahoma
$6.31M
LFG
497
Larson Financial Group
Missouri
$6.31M
DFCM
498
Dark Forest Capital Management
Puerto Rico
$6.28M
JG
499
Jain Global
New York
$6.27M
NW
500
NewEdge Wealth
Pennsylvania
$6.2M