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Boston Scientific

1,701 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, 766 increasing their positions, 552 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:

0.87% less ownership

Funds ownership: 91.43%90.56% (-0.87%)

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
1,701
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
Name Holding Trade Value Shares
Change
Change in
Stake
OSAM
276
O'Shaughnessy Asset Management
Connecticut
$28.3M
Baird Financial Group
277
Baird Financial Group
Wisconsin
$28.2M
OCM
278
Osterweis Capital Management
California
$27.7M
QT
279
Quantbot Technologies
New York
$27.5M
SPS
280
Susquehanna Portfolio Strategies
Pennsylvania
$27.4M
ProShare Advisors
281
ProShare Advisors
Maryland
$27.4M
Diamond Hill Capital Management
282
Diamond Hill Capital Management
Ohio
$27.1M
Comerica Bank
283
Comerica Bank
Texas
$27.1M
KC
284
Kepler Cheuvreux
$27M
RPI
285
Railway Pension Investments
United Kingdom
$26.8M
PHK
286
Point72 Hong Kong
Hong Kong
$26.5M
Mirae Asset Global Investments
287
Mirae Asset Global Investments
South Korea
$26.5M
VMPIC
288
Varma Mutual Pension Insurance Co
Finland
$26.4M
CPC
289
Cookson Peirce & Co
Pennsylvania
$26.4M
SMFG
290
Sumitomo Mitsui Financial Group
Japan
$25.9M
Nomura Holdings
291
Nomura Holdings
Japan
$25.9M
IMPI
292
Ilmarinen Mutual Pension Insurance
Finland
$25.7M
CCM
293
Catalio Capital Management
New York
$25.7M
Connor, Clark & Lunn Investment Management (CC&L)
294
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$25.3M
BSA
295
Braun Stacey Associates
New York
$25.2M
UIM
296
USS Investment Management
United Kingdom
$25.1M
Bank Julius Baer & Co
297
Bank Julius Baer & Co
Switzerland
$24.7M
X
298
Xponance
Pennsylvania
$24.2M
ZIM
299
Zacks Investment Management
Illinois
$24.2M
IG
300
ING Group
Netherlands
$24.1M