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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 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%90.2% (-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
NSIM
1351
North Star Investment Management
Illinois
$250K
GDP
1352
Great Diamond Partners
Maine
$250K
HP
1353
Holistic Planning
Texas
$250K
SSG
1354
Summit Securities Group
New York
$249K
ACIM
1355
Azimuth Capital Investment Management
Michigan
$249K
AO
1356
Advisor OS
Illinois
$249K
MAG
1357
MRA Advisory Group
New Jersey
$249K
BTWM
1358
Baker Tilly Wealth Management
Wisconsin
$248K
BWCS
1359
Beirne Wealth Consulting Services
Connecticut
$248K
AFW
1360
Avantra Family Wealth
Pennsylvania
$248K
WTC
1361
WhitTier Trust Company
Nevada
$247K
SIAS
1362
Summit Investment Advisory Services
Minnesota
$247K
CIA
1363
Caerus Investment Advisors
Texas
$247K
BW
1364
BostonPremier Wealth
Massachusetts
$247K
CPA
1365
Capital Performance Advisors
California
$246K
AA
1366
Auxano Advisors
Washington
$245K
KFP
1367
KMG Fiduciary Partners
Ohio
$245K
TCOT
1368
Trust Company of Toledo
Ohio
$245K
LSPW
1369
Lake Street Private Wealth
Illinois
$245K
SLG
1370
Stanley-Laman Group
Pennsylvania
$244K
LWIC
1371
Leith Wheeler Investment Counsel
British Columbia, Canada
$244K
PCA
1372
Private Capital Advisors
Connecticut
$244K
CCA
1373
Carrera Capital Advisors
Michigan
$243K
IWA
1374
IVC Wealth Advisors
Pennsylvania
$243K
HCM
1375
Howland Capital Management
Massachusetts
$242K