BSX icon

Boston Scientific
BSX

Overview Fund Activity

1,653 hedge funds and large institutions have $143B invested in Boston Scientific in 2025 Q2 according to their latest regulatory filings, with 151 funds opening new positions, 739 increasing their positions, 537 reducing their positions, and 86 closing their positions.

Holders
1,653
Holders Change
+33
Holders Change %
+2.04%
% of All Funds
22.2%
Holding in Top 10
39
Holding in Top 10 Change
-11
Holding in Top 10 Change %
-22%
% of All Funds
0.52%
New
151
Increased
739
Reduced
537
Closed
86
Calls
$863M
Puts
$692M
Net Calls
+$171M
Net Calls Change
-$85.1M

Top Buyers

1
Norges Bank
1
Norges Bank
Norway
$2.09B
2
Edgewood Management
2
Edgewood Management
Connecticut
$747M
3
BlackRock
3
BlackRock
New York
$15.8B
4
VOYA Investment Management
4
VOYA Investment Management
Georgia
$939M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$726M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$11.6B
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$2.76B
3
Massachusetts Financial Services
3
Massachusetts Financial Services
Massachusetts
$1.38B
4
Millennium Management
4
Millennium Management
New York
$444M
5
Winslow Capital Management
5
Winslow Capital Management
Minnesota
$1.14M
Name Market Value Shares Shares
Change 		Shares
Change %
BFA
1676
Brendel Financial Advisors
New Hampshire
– – -20,694 Closed
1C
1677
111 Capital
France
– – -16,143 Closed
Twin Tree Management
1678
Twin Tree Management
Texas
– – -15,923 Closed
AC
1679
AXQ Capital
New Jersey
– – -15,218 Closed
SP
1680
SIH Partners
Delaware
– – -14,873 Closed
WAM
1681
Worth Asset Management
Texas
– – -13,341 Closed
Boston Partners
1682
Boston Partners
Massachusetts
– – -13,235 Closed
IFU
1683
iSAM Funds (UK)
United Kingdom
– – -12,664 Closed
FCI
1684
Financial Counselors Inc
Kansas
– – -12,048 Closed
DTL
1685
Dynamic Technology Lab
Singapore
– – -10,881 Closed
HFA
1686
Harbert Fund Advisors
Alabama
– – -10,750 Closed
BOTPPF
1687
Board of the Pension Protection Fund
United Kingdom
– – -10,700 Closed
LCM
1688
Laurion Capital Management
New York
– – -10,528 Closed
SWM
1689
Shelton Wealth Management
Texas
– – -10,013 Closed
HFS
1690
Heritage Financial Services
Massachusetts
– – -9,388 Closed
ACM
1691
Aster Capital Management
United Arab Emirates
– – -9,041 Closed
NA
1692
Nottingham Advisors
New York
– – -9,005 Closed
GS
1693
GTS Securities
New York
– – -8,574 Closed
TC
1694
TwinBeech Capital
New York
– – -8,183 Closed
PCM
1695
Prelude Capital Management
New York
– – -7,731 Closed
OTL
1696
Oak Thistle LLC
New York
– – -7,359 Closed
NWM
1697
Napa Wealth Management
California
– – -7,340 Closed
BCM
1698
Bayesian Capital Management
New York
– – -4,900 Closed
HCP
1699
Hexagon Capital Partners
Arkansas
– – -4,876 Closed
CTB
1700
Country Trust Bank
Illinois
– – -4,537 Closed
66 67
68
69 70