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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
$15.8B
3
VOYA Investment Management
VOYA Investment Management
Georgia
$939M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
$726M
5
Bessemer Group
Bessemer Group
New Jersey
$314M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$11.6B
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$2.76B
3
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$1.38B
4
Millennium Management
Millennium Management
New York
$444M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
$1.14M
Name Holding Trade Value Shares
Change 		Shares
Change %
TC
1701
TwinBeech Capital
New York
– -$826K -8,183 Closed
PCM
1702
Prelude Capital Management
New York
– -$780K -7,731 Closed
OTL
1703
Oak Thistle LLC
New York
– -$742K -7,359 Closed
NWM
1704
Napa Wealth Management
California
– -$740K -7,340 Closed
BCM
1705
Bayesian Capital Management
New York
– -$494K -4,900 Closed
HCP
1706
Hexagon Capital Partners
Arkansas
– -$492K -4,876 Closed
CTB
1707
Country Trust Bank
Illinois
– -$458K -4,537 Closed
LA
1708
Legacy Advisors
Pennsylvania
– -$394K -3,905 Closed
CCP
1709
Clarity Capital Partners
California
– -$381K -3,778 Closed
FGP
1710
Freestone Grove Partners
California
– -$322K -3,187 Closed
ARC
1711
Advisor Resource Council
Texas
– -$283K -2,963 Closed
AIP
1712
Arrowpoint Investment Partners
Singapore
– -$293K -2,900 Closed
GFM
1713
GEN Financial Management
Minnesota
– -$291K -2,886 Closed
FA
1714
Fermata Advisors
California
– -$287K -2,846 Closed
RAM
1715
Readystate Asset Management
Illinois
– -$285K -2,823 Closed
CIC
1716
Crawford Investment Counsel
Georgia
– -$264K -2,616 Closed
SIAS
1717
Summit Investment Advisory Services
Minnesota
– -$261K -2,588 Closed
FRM
1718
Fox Run Management
Connecticut
– -$239K -2,369 Closed
EP
1719
Edgestream Partners
New Jersey
– -$236K -2,338 Closed
DI
1720
Diligent Investors
California
– -$235K -2,334 Closed
CPA
1721
Capital Performance Advisors
California
– -$231K -2,291 Closed
RTC
1722
Riverview Trust Company
Washington
– -$226K -2,237 Closed
HKIMG
1723
Hutchens & Kramer Investment Management Group
Indiana
– -$221K -2,187 Closed
CC
1724
Corton Capital
Ontario, Canada
– -$214K -2,119 Closed
FC
1725
Farringdon Capital
United Kingdom
– -$210K -2,086 Closed
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