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Boston Scientific

1,691 hedge funds and large institutions have $131B invested in Boston Scientific in 2025 Q3 according to their latest regulatory filings, with 177 funds opening new positions, 762 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:

0.88% less ownership

Funds ownership: 91.29%90.41% (-0.88%)

7% less funds holding in top 10

Funds holding in top 10: 4239 (-3)

10% less capital invested

Capital invested by funds: $145B → $131B (-$14.2B)

Holders
1,691
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
GIP
626
Granite Investment Partners
California
$3.17M
MYLI
627
Meiji Yasuda Life Insurance
Japan
$3.17M
QCG
628
Quadrant Capital Group
Ohio
$3.15M
SF
629
Summit Financial
New Jersey
$3.15M
PP
630
PDT Partners
New York
$3.14M
CUAMC
631
China Universal Asset Management Company
China
$3.12M
PDL
632
Portfolio Design Labs
California
$3.11M
LNWWM
633
Laird Norton Wetherby Wealth Management
California
$3.07M
CC
634
Courier Capital
New York
$3.06M
DM
635
Deerfield Management
New York
$3.06M
S
636
SignatureFD
Georgia
$3.05M
RS
637
R Squared
Hong Kong
$3.03M
1C
638
111 Capital
France
$3M
GT
639
Glenview Trust
Kentucky
$2.99M
CPBTD
640
Central Pacific Bank - Trust Division
Hawaii
$2.98M
CK
641
Cohen Klingenstein
New York
$2.98M
AAMU
642
APG Asset Management US
New York
$2.97M
QC
643
Quadrature Capital
United Kingdom
$2.94M
CCM
644
Conway Capital Management
California
$2.89M
SC
645
SummitTX Capital
Texas
$2.89M
Capstone Investment Advisors
646
Capstone Investment Advisors
New York
$2.87M
EWM
647
Empirical Wealth Management
Washington
$2.86M
GCM
648
Genus Capital Management
British Columbia, Canada
$2.84M
TS
649
Triglav Skladi
Slovenia
$2.83M
RMC
650
Resources Management Corp
Connecticut
$2.83M