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