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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, 760 increasing their positions, 549 reducing their positions, and 132 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
Capital Fund Management (CFM)
201
Capital Fund Management (CFM)
France
$52.7M
State of Tennessee, Department of Treasury
202
State of Tennessee, Department of Treasury
Tennessee
$51.9M
Focus Partners Wealth
203
Focus Partners Wealth
Massachusetts
$50.6M
State of New Jersey Common Pension Fund D
204
State of New Jersey Common Pension Fund D
New Jersey
$50.5M
QCM
205
Quantinno Capital Management
New York
$50M
SAM
206
Synergy Asset Management
Washington
$48.3M
SC
207
Samlyn Capital
New York
$47.5M
Hudson Bay Capital Management
208
Hudson Bay Capital Management
Connecticut
$47.4M
Victory Capital Management
209
Victory Capital Management
Texas
$47.2M
FFM
210
Fisher Funds Management
New Zealand
$47.2M
Susquehanna International Group
211
Susquehanna International Group
Pennsylvania
$47.1M
First Trust Advisors
212
First Trust Advisors
Illinois
$46.8M
EAM
213
Erste Asset Management
Austria
$46.4M
AV
214
ASR Vermogensbeheer
Netherlands
$46.1M
RAM
215
Resona Asset Management
Japan
$45.9M
WP
216
Woodline Partners
California
$45.2M
ACA
217
Anchor Capital Advisors
Massachusetts
$45.2M
BFS
218
Bradley Foster & Sargent
Connecticut
$44.3M
OBAM
219
ODDO BHF Asset Management
France
$44.1M
Osaic Holdings
220
Osaic Holdings
Arizona
$43.7M
TAM
221
Tocqueville Asset Management
New York
$43.6M
Cetera Investment Advisers
222
Cetera Investment Advisers
Illinois
$43.2M
RPAM
223
Rhenman & Partners Asset Management
Sweden
$42.8M
PHP
224
Parkman Healthcare Partners
Connecticut
$42.4M
TI
225
Trexquant Investment
Connecticut
$42.2M