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Boston Scientific

1,679 hedge funds and large institutions have $130B invested in Boston Scientific in 2025 Q3 according to their latest regulatory filings, with 179 funds opening new positions, 756 increasing their positions, 544 reducing their positions, and 132 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,679
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
Balyasny Asset Management
126
Balyasny Asset Management
Illinois
$152M
Allianz Asset Management
127
Allianz Asset Management
Germany
$146M
Ensign Peak Advisors
128
Ensign Peak Advisors
Utah
$144M
Korea Investment Corp
129
Korea Investment Corp
South Korea
$143M
HNB
130
Huntington National Bank
Ohio
$139M
CIBC Private Wealth Group
131
CIBC Private Wealth Group
Georgia
$135M
Adage Capital Partners
132
Adage Capital Partners
Massachusetts
$132M
State Board of Administration of Florida Retirement System
133
State Board of Administration of Florida Retirement System
Florida
$132M
Caisse de Depot et Placement du Quebec (CDPQ)
134
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$131M
Prudential Financial
135
Prudential Financial
New Jersey
$130M
Universal-Beteiligungs- und Servicegesellschaft
136
Universal-Beteiligungs- und Servicegesellschaft
Germany
$130M
GAM
137
Groupama Asset Management
France
$130M
TG
138
TCW Group
California
$130M
Public Employees Retirement Association of Colorado
139
Public Employees Retirement Association of Colorado
Colorado
$125M
CS
140
Candriam SCA
Luxembourg
$122M
MP
141
Munro Partners
Australia
$121M
Cerity Partners
142
Cerity Partners
New York
$120M
PNC Financial Services Group
143
PNC Financial Services Group
Pennsylvania
$119M
New York State Teachers Retirement System (NYSTRS)
144
New York State Teachers Retirement System (NYSTRS)
New York
$119M
Aviva
145
Aviva
United Kingdom
$115M
AQR Capital Management
146
AQR Capital Management
Connecticut
$114M
Lord, Abbett & Co
147
Lord, Abbett & Co
New Jersey
$110M
GGHC
148
Gilder Gagnon Howe & Co
New York
$108M
UM
149
UniSuper Management
Australia
$105M
Manulife (Manufacturers Life Insurance)
150
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$105M