BSX icon

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
PMAM
251
Picton Mahoney Asset Management
Ontario, Canada
$33.2M
FLPIM
252
F.L. Putnam Investment Management
Massachusetts
$32.8M
MIF
253
Mediolanum International Funds
Ireland
$32.7M
ACM
254
Aquatic Capital Management
Illinois
$32.3M
Creative Planning
255
Creative Planning
Kansas
$32.2M
CIS
256
Capital International Sarl
California
$32.1M
IIM
257
INTECH Investment Management
Florida
$31.6M
GF
258
Gabelli Funds
New York
$31.4M
Daiwa Securities Group
259
Daiwa Securities Group
Japan
$31.1M
Retirement Systems of Alabama
260
Retirement Systems of Alabama
Alabama
$30.9M
BPC
261
Banque Pictet & Cie
Switzerland
$30.5M
II
262
IFM Investors
Australia
$30.4M
PA
263
Perceptive Advisors
New York
$30.3M
JSSH
264
J. Safra Sarasin Holding
$29.9M
TC
265
TwinBeech Capital
New York
$29.8M
Fifth Third Bancorp
266
Fifth Third Bancorp
Ohio
$29.7M
Mirae Asset Global ETFs Holdings
267
Mirae Asset Global ETFs Holdings
Hong Kong
$29.7M
JFG
268
Jefferies Financial Group
New York
$29.5M
IHAM
269
Integral Health Asset Management
New York
$29.3M
LGF
270
LGT Group Foundation
Liechtenstein
$29.2M
AB
271
Amalgamated Bank
New York
$29.1M
Janney Montgomery Scott
272
Janney Montgomery Scott
Pennsylvania
$28.9M
EB
273
Eastern Bank
Massachusetts
$28.6M
FAF
274
Fjarde Ap-fonden
Sweden
$28.3M
OSAM
275
O'Shaughnessy Asset Management
Connecticut
$28.3M