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Boston Scientific

1,662 hedge funds and large institutions have $84.2B invested in Boston Scientific in 2026 Q1 according to their latest regulatory filings, with 190 funds opening new positions, 673 increasing their positions, 632 reducing their positions, and 276 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

31% less first-time investments, than exits

New positions opened: 190 | Existing positions closed: 276

32% less funds holding in top 10

Funds holding in top 10: 3725 (-12)

35% less capital invested

Capital invested by funds: $130B → $84.2B (-$45.8B)

Holders
1,662
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.56B
Puts
$640M
Net Calls
Net Calls Change

Top Buyers

1 +$1.05B
2 +$730M
3 +$706M
4
JP Morgan Chase
JP Morgan Chase
New York
+$638M
5
Two Sigma Investments
Two Sigma Investments
New York
+$555M
Name Holding Trade Value Shares
Change
Change in
Stake
VWM
1651
Vermillion Wealth Management
Minnesota
$565
SA
1652
Seneschal Advisors
Washington
$440
WBC
1653
West Branch Capital
Massachusetts
$377
IPS
1654
Investors Portfolio Services
Washington
$375
SHIM
1655
Stone House Investment Management
Pennsylvania
$251
LWMI
1656
Legacy Wealth Management (Idaho)
Idaho
$189
RJA
1657
Ross\Johnson & Associates
Minnesota
$188
HIA
1658
HFM Investment Advisors
New Jersey
$126
3FI
1659
3 Factor Indexing
California
$126
NF
1660
Napier Financial
Massachusetts
$126
Norges Bank
1661
Norges Bank
Norway
Two Sigma Advisers
1662
Two Sigma Advisers
New York
ECU
1663
Egerton Capital (UK)
United Kingdom
SP
1664
SurgoCap Partners
New York
Viking Global Investors
1665
Viking Global Investors
Connecticut
AI
1666
Axiom Investors
Connecticut
FGP
1667
Freestone Grove Partners
California
MP
1668
Munro Partners
Australia
PA
1669
Perceptive Advisors
New York
MCP
1670
Meridiem Capital Partners
Texas
TLP
1671
Tri Locum Partners
New York
FAF
1672
Första AP-fonden
Sweden
SC
1673
Samlyn Capital
New York
RPI
1674
Railway Pension Investments
United Kingdom
Alyeska Investment Group
1675
Alyeska Investment Group
Illinois