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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
ASRS
226
Arizona State Retirement System
Arizona
$42.2M
Mariner
227
Mariner
Kansas
$40.3M
PD
228
Point72 (DIFC)
United Arab Emirates
$39.9M
SG Americas Securities
229
SG Americas Securities
New York
$39.6M
LA
230
LBP AM
France
$39.1M
SOMRS
231
State of Michigan Retirement System
Michigan
$39.1M
DnB Asset Management
232
DnB Asset Management
Norway
$39M
EOJOAM
233
E. Ohman J:or Asset Management
Sweden
$38.8M
GIM
234
Generate Investment Management
New Zealand
$38.6M
Nisa Investment Advisors
235
Nisa Investment Advisors
Missouri
$38.2M
JF
236
Jump Financial
Illinois
$37.6M
MIM
237
MetLife Investment Management
New Jersey
$37.1M
CNB
238
Czech National Bank
Czech Republic
$36.7M
ABC
239
Associated Banc-Corp
Wisconsin
$36.4M
DILIC
240
Dai-ichi Life Insurance Company
Japan
$36.3M
FAF
241
Första AP-fonden
Sweden
$35.7M
RSCM
242
Rock Springs Capital Management
Maryland
$35.2M
NP
243
NS Partners
United Kingdom
$35M
COPPSERS
244
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$34.7M
CFB
245
Cullen/Frost Bankers
Texas
$34.7M
SCM
246
Suvretta Capital Management
New York
$34.5M
Los Angeles Capital Management
247
Los Angeles Capital Management
California
$34.4M
US Bancorp
248
US Bancorp
Minnesota
$34.1M
Rockefeller Capital Management
249
Rockefeller Capital Management
New York
$34.1M
PMAM
250
Picton Mahoney Asset Management
Ontario, Canada
$33.2M