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Boston Scientific
BSX

Overview Fund Activity

1,660 hedge funds and large institutions have $145B invested in Boston Scientific in 2025 Q2 according to their latest regulatory filings, with 151 funds opening new positions, 744 increasing their positions, 539 reducing their positions, and 86 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,660
Holders Change
+40
Holders Change %
+2.47%
% of All Funds
22.26%
Holding in Top 10
40
Holding in Top 10 Change
-10
Holding in Top 10 Change %
-20%
% of All Funds
0.54%
New
151
Increased
744
Reduced
539
Closed
86
Calls
$1.08B
Puts
$859M
Net Calls
+$225M
Net Calls Change
-$30.7M

Top Buyers

1
Edgewood Management
Edgewood Management
Connecticut
+$747M
2
BlackRock
BlackRock
New York
+$539M
3
VOYA Investment Management
VOYA Investment Management
Georgia
+$514M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$313M
5
Bessemer Group
Bessemer Group
New Jersey
+$311M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$2.18B
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$630M
3
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
-$393M
4
Millennium Management
Millennium Management
New York
-$355M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
-$284M
Name Holding Trade Value Shares
Change 		Shares
Change %
FFM
151
Fisher Funds Management
New Zealand
$102M -$12.1M -112,798 -11%
Teacher Retirement System of Texas
152
Teacher Retirement System of Texas
Texas
$100M +$6.46M +60,144 +7%
BT
153
Banque Transatlantique
France
$99.8M +$35.3M +328,434 +55%
Public Sector Pension Investment Board (PSP Investments)
154
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$98.8M +$11.5M +106,634 +13%
UM
155
UniSuper Management
Australia
$97.8M -$7.3M -67,930 -7%
ATN
156
AMF Tjänstepension
Sweden
$95.4M +$95.4M +888,204 New
Acadian Asset Management
157
Acadian Asset Management
Massachusetts
$95.3M +$30.2M +281,249 +46%
Nomura Asset Management
158
Nomura Asset Management
Japan
$94.2M -$29.4M -273,958 -24%
TAF
159
Tredje AP-fonden
Sweden
$92.4M +$15.4M +143,696 +20%
APG Asset Management
160
APG Asset Management
Netherlands
$91.8M +$2.55M +27,912 +3%
CS
161
Candriam SCA
Luxembourg
$89.8M +$45.2M +421,213 +102%
LF
162
Lansforsakringar Fondforvaltning
Sweden
$88.5M -$3.78M -35,191 -4%
State of Wisconsin Investment Board
163
State of Wisconsin Investment Board
Wisconsin
$86.7M -$8.18M -76,177 -9%
Victory Capital Management
164
Victory Capital Management
Texas
$84.5M -$1.85M -17,218 -2%
Mitsubishi UFJ Trust & Banking
165
Mitsubishi UFJ Trust & Banking
Japan
$84.2M -$686K -6,387 -0.8%
Chevy Chase Trust
166
Chevy Chase Trust
Maryland
$84M +$914K +8,509 +1%
Asset Management One
167
Asset Management One
Japan
$82.5M +$3.53M +32,834 +4%
HA
168
Homestead Advisers
Virginia
$81.6M -$24M -223,100 -23%
ECM
169
ExodusPoint Capital Management
New York
$81.2M +$20.9M +194,602 +35%
ASC
170
Atalanta Sosnoff Capital
New York
$76.8M -$3M -27,889 -4%
FFM
171
Fullerton Fund Management
Singapore
$75.8M +$2.92M +27,188 +4%
Royal London Asset Management
172
Royal London Asset Management
United Kingdom
$74.1M -$2.14M -19,934 -3%
Treasurer of the State of North Carolina
173
Treasurer of the State of North Carolina
North Carolina
$74.1M +$1.83M +17,069 +3%
Northwestern Mutual Wealth Management
174
Northwestern Mutual Wealth Management
Wisconsin
$72.4M -$8.14M -75,788 -10%
Ohio Public Employees Retirement System (OPERS)
175
Ohio Public Employees Retirement System (OPERS)
Ohio
$72.2M -$93.7K -872 -0.1%
5 6
7
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