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Boston Scientific

1,663 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, 674 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
1,663
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
CMA
1651
Cedar Mountain Advisors
Oregon
$816
VWM
1652
Vermillion Wealth Management
Minnesota
$565
SA
1653
Seneschal Advisors
Washington
$440
WBC
1654
West Branch Capital
Massachusetts
$377
IPS
1655
Investors Portfolio Services
Washington
$375
SHIM
1656
Stone House Investment Management
Pennsylvania
$251
LWMI
1657
Legacy Wealth Management (Idaho)
Idaho
$189
RJA
1658
Ross\Johnson & Associates
Minnesota
$188
HIA
1659
HFM Investment Advisors
New Jersey
$126
3FI
1660
3 Factor Indexing
California
$126
NF
1661
Napier Financial
Massachusetts
$126
Norges Bank
1662
Norges Bank
Norway
Two Sigma Advisers
1663
Two Sigma Advisers
New York
ECU
1664
Egerton Capital (UK)
United Kingdom
SP
1665
SurgoCap Partners
New York
Viking Global Investors
1666
Viking Global Investors
Connecticut
AI
1667
Axiom Investors
Connecticut
FGP
1668
Freestone Grove Partners
California
MP
1669
Munro Partners
Australia
PA
1670
Perceptive Advisors
New York
MCP
1671
Meridiem Capital Partners
Texas
TLP
1672
Tri Locum Partners
New York
FAF
1673
Första AP-fonden
Sweden
SC
1674
Samlyn Capital
New York
RPI
1675
Railway Pension Investments
United Kingdom