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

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$11.6B
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$2.76B
3
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$1.38B
4
Millennium Management
Millennium Management
New York
$444M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
$1.14M
Name Holding Trade Value Shares
Change 		Shares
Change %
DFCM
526
Dark Forest Capital Management
Puerto Rico
$5.32M -$1.59M -14,783 -23%
TMAM
527
Tokio Marine Asset Management
Japan
$5.32M +$253K +2,355 +5%
AAB
528
ABN AMRO Bank
Netherlands
$5.26M +$3.25M +30,113 +161%
MK
529
MASTERINVEST Kapitalanlage
$5.23M +$5.23M +48,728 New
ACM
530
Alcosta Capital Management
California
$5.2M +$5.2M +48,427 New
BA
531
Bridgewater Associates
Connecticut
$5.19M -$1.68M -15,670 -25%
HT
532
Headlands Technologies
Illinois
$5.15M +$3.06M +28,473 +146%
NA
533
Navellier & Associates
Nevada
$5.11M -$2.2M -20,519 -30%
CGIM
534
Capital Group Investment Management
Singapore
$5.1M – – –
NMIMC
535
Northwestern Mutual Investment Management Company
Wisconsin
$5.07M +$34.5K +321 +0.7%
NSEDCP
536
NJ State Employees Deferred Compensation Plan
New Jersey
$5.05M – – –
KPWS
537
Kestra Private Wealth Services
Texas
$5.02M +$707K +6,581 +16%
MPPLM
538
Midwest Professional Planners Ltd (MPPL)
Wisconsin
$4.99M +$70.1K +653 +1%
TPM
539
Triasima Portfolio Management
Quebec, Canada
$4.99M +$206K +1,915 +4%
TCA
540
Trifecta Capital Advisors
Illinois
$4.99M +$323K +3,010 +7%
CPCPP
541
Canada Post Corporation Pension Plan
Canada
$4.97M +$4.97M +46,237 New
BIP
542
Bouvel Investment Partners
Pennsylvania
$4.94M +$85.9K +800 +2%
JWM
543
Jackson Wealth Management
Florida
$4.91M -$564K -5,248 -10%
FDP
544
Financiere des Professionnels
Quebec, Canada
$4.89M -$1.96M -18,247 -29%
VAS
545
Vestmark Advisory Solutions
Massachusetts
$4.89M -$3.56M -33,131 -42%
AHC
546
Adell Harriman & Carpenter
Texas
$4.88M +$2.12M +19,735 +77%
NRS
547
Neville Rodie & Shaw
New York
$4.88M +$2.39M +22,255 +96%
SNB
548
Security National Bank
Nebraska
$4.86M +$655K +6,102 +16%
HWM
549
HB Wealth Management
Georgia
$4.86M +$698K +6,502 +17%
AG
550
Ascent Group
Virginia
$4.85M -$515K -4,794 -10%
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