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Boston Scientific
BSX

Overview Fund Activity

1,620 hedge funds and large institutions have $133B invested in Boston Scientific in 2025 Q1 according to their latest regulatory filings, with 234 funds opening new positions, 655 increasing their positions, 545 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,620
Holders Change
+129
Holders Change %
+8.65%
% of All Funds
22.01%
Holding in Top 10
50
Holding in Top 10 Change
+11
Holding in Top 10 Change %
+28.21%
% of All Funds
0.68%
New
234
Increased
655
Reduced
545
Closed
75
Calls
$1.07B
Puts
$819M
Net Calls
+$256M
Net Calls Change
+$371M

Top Buyers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$3.18B
2
Bank of America
2
Bank of America
North Carolina
$3.18B
3
Two Sigma Advisers
3
Two Sigma Advisers
New York
$424M
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$387M
5
SP
5
SurgoCap Partners
New York
$267M

Top Sellers

1
Franklin Resources
1
Franklin Resources
California
$751M
2
DZ Bank
2
DZ Bank
Germany
$1.79B
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$13B
4
Massachusetts Financial Services
4
Massachusetts Financial Services
Massachusetts
$1.67B
5
Impax Asset Management Group
5
Impax Asset Management Group
United Kingdom
$146M
Name Holding Trade Value Shares
Change 		Shares
Change %
VOYA Investment Management
51
VOYA Investment Management
Georgia
$399M -$64.1M -636,094 -14%
Neuberger Berman Group
52
Neuberger Berman Group
New York
$395M -$10.5M -104,504 -3%
American Century Companies
53
American Century Companies
Missouri
$392M -$60.7M -601,445 -13%
Ninety One (UK)
54
Ninety One (UK)
United Kingdom
$389M +$23.5M +232,997 +6%
D.E. Shaw & Co
55
D.E. Shaw & Co
New York
$387M +$310M +3,075,641 +403%
FCM
56
Farallon Capital Management
California
$380M -$127M -1,260,200 -25%
California Public Employees Retirement System
57
California Public Employees Retirement System
California
$359M -$5.73M -56,759 -2%
Wells Fargo
58
Wells Fargo
California
$359M +$37M +366,749 +11%
National Pension Service
59
National Pension Service
South Korea
$355M +$17.4M +172,938 +5%
Sumitomo Mitsui Trust Group
60
Sumitomo Mitsui Trust Group
Japan
$353M +$2.9M +28,764 +0.8%
SEI Investments
61
SEI Investments
Pennsylvania
$329M -$36.1M -357,675 -10%
BNP Paribas Financial Markets
62
BNP Paribas Financial Markets
France
$323M +$45.6M +452,195 +16%
AllianceBernstein
63
AllianceBernstein
Tennessee
$306M +$120M +1,189,016 +64%
HSBC Holdings
64
HSBC Holdings
United Kingdom
$305M -$4.41M -43,781 -1%
Qube Research & Technologies (QRT)
65
Qube Research & Technologies (QRT)
United Kingdom
$299M +$193M +1,915,075 +183%
Citigroup
66
Citigroup
New York
$291M -$25.2M -249,976 -8%
A
67
AustralianSuper
Australia
$285M +$23.7M +235,322 +9%
Aberdeen Group
68
Aberdeen Group
United Kingdom
$284M +$21.4M +213,753 +8%
O
69
OrbiMed
New York
$284M -$35M -347,100 -11%
RhumbLine Advisers
70
RhumbLine Advisers
Massachusetts
$282M +$5.55M +55,006 +2%
Envestnet Asset Management
71
Envestnet Asset Management
Illinois
$282M +$35.2M +349,246 +14%
ATO
72
Alecta Tjanstepension Omsesidigt
Sweden
$277M – – –
Handelsbanken Fonder
73
Handelsbanken Fonder
Sweden
$269M +$10.8M +106,847 +4%
Winslow Capital Management
74
Winslow Capital Management
Minnesota
$268M -$48M -475,732 -15%
SP
75
SurgoCap Partners
New York
$267M +$267M +2,649,969 New
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