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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 %
NL
26
Nuveen LLC
North Carolina
$1.02B 9,456,360 +2,461,003 +35%
VOYA Investment Management
27
VOYA Investment Management
Georgia
$939M 8,746,679 +4,789,995 +121%
Charles Schwab
28
Charles Schwab
California
$937M 8,719,911 +143,697 +2%
Artisan Partners
29
Artisan Partners
Wisconsin
$915M 8,518,201 -1,141,087 -12%
Ameriprise
30
Ameriprise
Minnesota
$838M 7,786,959 -64,744 -0.8%
Fisher Asset Management
31
Fisher Asset Management
Washington
$828M 7,705,384 +939,834 +14%
Franklin Resources
32
Franklin Resources
California
$815M 7,584,680 +135,266 +2%
Deutsche Bank
33
Deutsche Bank
Germany
$811M 7,548,798 +2,083,231 +38%
Marshall Wace
34
Marshall Wace
United Kingdom
$805M 7,497,657 -450,505 -6%
Edgewood Management
35
Edgewood Management
Connecticut
$747M 6,951,450 +6,951,450 New
D.E. Shaw & Co
36
D.E. Shaw & Co
New York
$726M 6,755,151 +2,916,007 +76%
Lazard Asset Management
37
Lazard Asset Management
New York
$712M 6,632,760 +372,200 +6%
Royal Bank of Canada
38
Royal Bank of Canada
Ontario, Canada
$712M 6,631,061 +1,618,799 +32%
Capital Research Global Investors
39
Capital Research Global Investors
California
$710M 6,609,793 +665,827 +11%
Arrowstreet Capital
40
Arrowstreet Capital
Massachusetts
$701M 6,529,918 -224,737 -3%
Citadel Advisors
41
Citadel Advisors
Florida
$580M 5,404,305 -29,250 -0.5%
Two Sigma Advisers
42
Two Sigma Advisers
New York
$555M 5,169,960 +964,000 +23%
Ninety One (UK)
43
Ninety One (UK)
United Kingdom
$553M 5,146,218 +1,290,414 +33%
Fidelity International
44
Fidelity International
Bermuda
$524M 4,878,946 -835,657 -15%
Canada Pension Plan Investment Board
45
Canada Pension Plan Investment Board
Ontario, Canada
$507M 4,719,646 -1,515,917 -24%
Qube Research & Technologies (QRT)
46
Qube Research & Technologies (QRT)
United Kingdom
$503M 4,679,519 +1,719,386 +58%
Swiss National Bank
47
Swiss National Bank
Switzerland
$481M 4,477,200 +320,400 +8%
Pictet Asset Management
48
Pictet Asset Management
Switzerland
$472M 4,393,459 -70,913 -2%
Barclays
49
Barclays
United Kingdom
$469M 4,367,451 -1,168,302 -21%
Vontobel Holding
50
Vontobel Holding
Switzerland
$460M 4,286,905 +16,739 +0.4%
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