BSX icon

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, 760 increasing their positions, 549 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%90.2% (-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
LF
401
Longbow Finance
Switzerland
$11.9M
FAB
402
First American Bank
Illinois
$11.9M
EF
403
Empowered Funds
Pennsylvania
$11.8M
NA
404
NewEdge Advisors
Louisiana
$11.6M
MSU
405
Mizuho Securities USA
New York
$11.4M
AssetMark Inc
406
AssetMark Inc
California
$11.3M
William Blair & Company
407
William Blair & Company
Illinois
$11.2M
Wealth Enhancement Advisory Services
408
Wealth Enhancement Advisory Services
Minnesota
$11.2M
FNT
409
First National Trust
Pennsylvania
$11.2M
IC
410
IEQ Capital
California
$11.1M
VRS
411
Virginia Retirement Systems
Virginia
$11.1M
WF
412
Welch & Forbes
Massachusetts
$10.9M
HT
413
Headlands Technologies
Illinois
$10.5M
HWAM
414
Hennion & Walsh Asset Management
New Jersey
$10.5M
BPWM
415
Badgley Phelps Wealth Managers
Washington
$10.4M
AG
416
AIA Group
Hong Kong
$10.3M
Mercer Global Advisors
417
Mercer Global Advisors
Colorado
$10.3M
DCM
418
Dupont Capital Management
Delaware
$10.3M
BBVA
419
Banco Bilbao Vizcaya Argentaria
Spain
$10.2M
CM
420
Caption Management
Oklahoma
$9.84M
GIM
421
Glenmede Investment Management
Pennsylvania
$9.67M
HI
422
Horizon Investments
North Carolina
$9.45M
Empower Advisory Group
423
Empower Advisory Group
Colorado
$9.45M
BP
424
BNP Paribas
France
$9.43M
FC
425
FACT Capital
New York
$9.36M