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Boston Scientific
BSX

Overview Fund Activity

1,660 hedge funds and large institutions have $145B invested in Boston Scientific in 2025 Q2 according to their latest regulatory filings, with 151 funds opening new positions, 744 increasing their positions, 539 reducing their positions, and 86 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,660
Holders Change
+40
Holders Change %
+2.47%
% of All Funds
22.26%
Holding in Top 10
40
Holding in Top 10 Change
-10
Holding in Top 10 Change %
-20%
% of All Funds
0.54%
New
151
Increased
744
Reduced
539
Closed
86
Calls
$1.08B
Puts
$859M
Net Calls
+$225M
Net Calls Change
-$30.7M

Top Buyers

1
Edgewood Management
1
Edgewood Management
Connecticut
$747M
2
BlackRock
2
BlackRock
New York
$15.8B
3
VOYA Investment Management
3
VOYA Investment Management
Georgia
$939M
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$726M
5
Bessemer Group
5
Bessemer Group
New Jersey
$314M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$11.6B
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$2.76B
3
Massachusetts Financial Services
3
Massachusetts Financial Services
Massachusetts
$1.38B
4
Millennium Management
4
Millennium Management
New York
$444M
5
Winslow Capital Management
5
Winslow Capital Management
Minnesota
$1.14M
Name Holding Trade Value Shares
Change 		Shares
Change %
TI
376
Tidal Investments
Wisconsin
$12.4M +$1.21M +11,284 +11%
BCM
377
Brookstone Capital Management
Illinois
$12.4M +$264K +2,454 +2%
SG Americas Securities
378
SG Americas Securities
New York
$12.4M -$29.5M -274,605 -70%
DCM
379
Dupont Capital Management
Delaware
$12.3M – – –
AG
380
AIA Group
Hong Kong
$12.3M +$448K +4,171 +4%
Osaic Holdings
381
Osaic Holdings
Arizona
$12.2M +$625K +6,516 +5%
BP
382
BNP Paribas
France
$12.2M +$8.05M +74,104 +194%
WF
383
Welch & Forbes
Massachusetts
$12.2M +$123K +1,149 +1%
PF
384
Phoenix Financial
Israel
$12.2M +$792K +7,371 +7%
OAM
385
Oppenheimer Asset Management
New York
$12.1M +$261K +2,427 +2%
GWM
386
GDS Wealth Management
Texas
$12.1M +$4.35M +40,528 +56%
Wealth Enhancement Advisory Services
387
Wealth Enhancement Advisory Services
Minnesota
$12.1M +$1.12M +10,741 +10%
FNT
388
First National Trust
Pennsylvania
$12.1M -$290K -2,704 -2%
TI
389
Trexquant Investment
Connecticut
$11.8M +$9.17M +85,381 +350%
NA
390
NewEdge Advisors
Louisiana
$11.7M +$1.45M +13,527 +14%
HWAM
391
Hennion & Walsh Asset Management
New Jersey
$11.7M -$611K -5,691 -5%
M&T Bank
392
M&T Bank
New York
$11.6M +$720K +6,701 +7%
QC
393
Quadrature Capital
United Kingdom
$11.6M -$12.6M -117,718 -52%
BPWM
394
Badgley Phelps Wealth Managers
Washington
$11.3M +$255K +2,376 +2%
SLI
395
Sumitomo Life Insurance
Japan
$11.3M -$703K -6,543 -6%
MSU
396
Mizuho Securities USA
New York
$11M -$1.69M -15,764 -13%
CWM
397
Calamos Wealth Management
Illinois
$10.9M +$308K +2,864 +3%
VLKIM
398
Van Lanschot Kempen Investment Management
Netherlands
$10.9M +$10.9M +101,260 New
Mercer Global Advisors
399
Mercer Global Advisors
Colorado
$10.9M +$1.22M +11,334 +13%
NCM
400
Nearwater Capital Markets
Ireland
$10.7M +$10.7M +100,000 New
14 15
16
17 18