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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
HIIFS
1001
Harel Insurance Investments & Financial Services
Israel
$771K
LA
1002
Lifeworks Advisors
Michigan
$767K
BTW
1003
Boston Trust Walden
Massachusetts
$761K
BCG
1004
Breakwater Capital Group
New Jersey
$761K
PA
1005
Pinnacle Associates
New York
$759K
MG
1006
Mather Group
Illinois
$756K
TCM
1007
Teza Capital Management
Illinois
$755K
AWM
1008
Aberdeen Wealth Management
Illinois
$754K
MA
1009
Mutual Advisors
Nebraska
$744K
Westfield Capital Management
1010
Westfield Capital Management
Massachusetts
$741K
HSA
1011
HBK Sorce Advisory
Pennsylvania
$740K
Fuller & Thaler Asset Management
1012
Fuller & Thaler Asset Management
California
$740K
ACM
1013
AUA Capital Management
Pennsylvania
$740K
IAN
1014
Integrated Advisors Network
Texas
$739K
DG
1015
DMC Group
Alabama
$737K
HPC
1016
Hobart Private Capital
North Carolina
$734K
GFA
1017
Gallagher Fiduciary Advisors
Illinois
$733K
AA
1018
Alta Advisers
United Kingdom
$730K
JFA
1019
JNBA Financial Advisors
Minnesota
$724K
WWM
1020
Wolff Wiese Magana
California
$723K
LCGC
1021
Legacy Capital Group California
California
$721K
Blackstone Inc
1022
Blackstone Inc
New York
$719K
PCM
1023
Polymer Capital Management
New York
$717K
FWP
1024
FAS Wealth Partners
Kansas
$710K
JSC
1025
Jackson Square Capital
California
$710K