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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
GLR
751
Great Lakes Retirement
Ohio
$1.41M
HCA
752
Harbor Capital Advisors
Illinois
$1.41M
MGIA
753
Moneta Group Investment Advisors
Missouri
$1.39M
BONH
754
Bank of New Hampshire
New Hampshire
$1.39M
LWAM
755
Legacy Wealth Asset Management
Minnesota
$1.39M
OAM
756
Ostrum Asset Management
France
$1.38M
FFA
757
Farther Finance Advisors
California
$1.38M
RWM
758
Rench Wealth Management
Texas
$1.38M
AAM
759
Azzad Asset Management
Virginia
$1.37M
ECM
760
Evergreen Capital Management
Washington
$1.37M
LGA
761
Lebenthal Global Advisors
New York
$1.37M
SAM
762
Smartleaf Asset Management
Massachusetts
$1.37M
BPA
763
Beacon Pointe Advisors
California
$1.37M
SAI
764
Systematic Alpha Investments
New Jersey
$1.37M
GEA
765
Glen Eagle Advisors
New Jersey
$1.36M
PIMJS
766
PKO Investment Management Joint-Stock
Poland
$1.35M
CSP
767
Cary Street Partners
Virginia
$1.35M
SF
768
Summit Financial
New Jersey
$1.35M
TCM
769
Traynor Capital Management
Pennsylvania
$1.33M
AF
770
Aviso Financial
Ontario, Canada
$1.33M
KRS
771
Kentucky Retirement Systems
Kentucky
$1.32M
William Blair & Company
772
William Blair & Company
Illinois
$1.32M
FT
773
Fiduciary Trust
Massachusetts
$1.32M
SFP
774
Shepherd Financial Partners
Massachusetts
$1.31M
APC
775
Aspire Private Capital
North Carolina
$1.31M