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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
CHAM
1326
Clear Harbor Asset Management
Connecticut
$274K
FG
1327
Foster Group
Iowa
$274K
EFS
1328
Essex Financial Services
Connecticut
$274K
FM
1329
Freemont Management
Switzerland
$273K
FW
1330
FullCircle Wealth
Texas
$273K
LA
1331
LM Advisors
California
$273K
APM
1332
a16z Perennial Management
California
$272K
ST
1333
Sageworth Trust
Pennsylvania
$272K
CWS
1334
Cypress Wealth Services
California
$271K
AWM
1335
Aprio Wealth Management
Georgia
$269K
BWM
1336
Buckley Wealth Management
Nevada
$267K
ACGA
1337
Atlanta Consulting Group Advisors
Georgia
$267K
CCM
1338
Consolidated Capital Management
California
$267K
GPW
1339
Genesis Private Wealth
Virginia
$267K
AA
1340
ABC Arbitrage
France
$265K
TWA
1341
Talisman Wealth Advisors
New Jersey
$265K
PW
1342
PUREfi Wealth
Massachusetts
$263K
CFO
1343
CVA Family Office
Colorado
$263K
WCM
1344
Weaver Capital Management
Georgia
$263K
BTI
1345
Blue Trust Inc
Georgia
$258K
IA
1346
IFC Advisors
California
$257K
ALAM
1347
Asahi Life Asset Management
Japan
$257K
4WM
1348
44 Wealth Management
Oregon
$255K
MWM
1349
Marion Wealth Management
Pennsylvania
$253K
WP
1350
Westmount Partners
California
$253K