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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
22.25%
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 %
USAA
1676
United Services Automobile Association
Texas
– -$3.43M -34,540 Closed
SFI
1677
Susquehanna Fundamental Investments
Pennsylvania
– -$2.97M -29,400 Closed
Capital Fund Management (CFM)
1678
Capital Fund Management (CFM)
France
– -$2.58M -25,599 Closed
DF
1679
Donoghue Forlines
Massachusetts
– -$2.36M -23,351 Closed
WG
1680
Winton Group
United Kingdom
– -$2.21M -21,937 Closed
IAIM
1681
International Assets Investment Management
Florida
– -$207K -21,855 Closed
IMC Chicago
1682
IMC Chicago
Illinois
– -$2.16M -21,387 Closed
BFA
1683
Brendel Financial Advisors
New Hampshire
– -$2.09M -20,694 Closed
1C
1684
111 Capital
France
– -$1.63M -16,143 Closed
Twin Tree Management
1685
Twin Tree Management
Texas
– -$1.61M -15,923 Closed
AC
1686
AXQ Capital
New Jersey
– -$1.54M -15,218 Closed
SP
1687
SIH Partners
Delaware
– -$1.5M -14,873 Closed
WAM
1688
Worth Asset Management
Texas
– -$1.35M -13,341 Closed
Boston Partners
1689
Boston Partners
Massachusetts
– -$1.34M -13,235 Closed
IFU
1690
iSAM Funds (UK)
United Kingdom
– -$1.28M -12,664 Closed
FCI
1691
Financial Counselors Inc
Kansas
– -$1.22M -12,048 Closed
DTL
1692
Dynamic Technology Lab
Singapore
– -$1.1M -10,881 Closed
HFA
1693
Harbert Fund Advisors
Alabama
– -$1.08M -10,750 Closed
BOTPPF
1694
Board of the Pension Protection Fund
United Kingdom
– -$1.08M -10,700 Closed
LCM
1695
Laurion Capital Management
New York
– -$1.06M -10,528 Closed
SWM
1696
Shelton Wealth Management
Texas
– -$1.01M -10,013 Closed
HFS
1697
Heritage Financial Services
Massachusetts
– -$947K -9,388 Closed
ACM
1698
Aster Capital Management
United Arab Emirates
– -$938K -9,041 Closed
NA
1699
Nottingham Advisors
New York
– -$908K -9,005 Closed
GS
1700
GTS Securities
New York
– -$865K -8,574 Closed
66 67
68
69 70