BSX icon

Boston Scientific

1,690 hedge funds and large institutions have $130B invested in Boston Scientific in 2025 Q3 according to their latest regulatory filings, with 177 funds opening new positions, 761 increasing their positions, 548 reducing their positions, and 133 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

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

more funds holding

Funds holding:

1.08% less ownership

Funds ownership: 91.29%90.21% (-1.1%)

7% less funds holding in top 10

Funds holding in top 10: 4239 (-3)

10% less capital invested

Capital invested by funds: $145B → $130B (-$14.5B)

Holders
1,690
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
39
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.13B
Puts
$989M
Net Calls
Net Calls Change

Top Buyers

1 +$671M
2 +$547M
3 +$358M
4
Millennium Management
Millennium Management
New York
+$357M
5
Citadel Advisors
Citadel Advisors
Florida
+$342M
Name Holding Trade Value Shares
Change
Change in
Stake
A
651
Argentarii
Ohio
$2.81M
PHS
652
PFM Health Sciences
California
$2.8M
CW
653
Channel Wealth
California
$2.79M
BJL
654
Brighton Jones LLC
Washington
$2.79M
MSE
655
MUFG Securities EMEA
United Kingdom
$2.77M
PIM
656
Plato Investment Management
Australia
$2.77M
VT
657
Vise Technologies
New York
$2.76M
BFM
658
Boothbay Fund Management
New York
$2.76M
BF
659
BOK Financial
Oklahoma
$2.74M
LOAMU
660
Lombard Odier Asset Management (USA)
New York
$2.72M
SAM
661
Shell Asset Management
Netherlands
$2.71M
Group One Trading
662
Group One Trading
Illinois
$2.69M
SFS
663
Sowell Financial Services
Arkansas
$2.69M
CHP
664
Castle Hook Partners
New York
$2.68M
PP
665
Prudential plc
United Kingdom
$2.66M
SC
666
Syon Capital
California
$2.66M
AIC
667
Argus Investors Counsel
New York
$2.62M
GH
668
GAM Holding
Switzerland
$2.61M
BAAM
669
Baker Avenue Asset Management
California
$2.6M
GT
670
Greenleaf Trust
Michigan
$2.6M
BIG
671
Brooklyn Investment Group
New York
$2.58M
CAG
672
Crestwood Advisors Group
Massachusetts
$2.57M
BC
673
Bridgefront Capital
Texas
$2.57M
VU
674
Vanderbilt University
Tennessee
$2.55M
FFN
675
Focus Financial Network
Minnesota
$2.54M