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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 %
FLPIM
401
F.L. Putnam Investment Management
Massachusetts
$10.7M +$10.2M +95,234 +2,247%
HI
402
Horizon Investments
North Carolina
$10.5M +$7.97M +74,223 +320%
VC
403
Vestor Capital
Illinois
$10.4M -$131K -1,216 -1%
RBI
404
Raiffeisen Bank International
Austria
$10.2M +$561K +5,384 +6%
Empower Advisory Group
405
Empower Advisory Group
Colorado
$10.2M +$6.65M +61,954 +189%
KRS
406
Kentucky Retirement Systems
Kentucky
$10.1M -$663K -6,170 -6%
SBH
407
Segall Bryant & Hamill
Illinois
$10.1M +$1.34M +12,477 +15%
RBA
408
Richard Bernstein Advisors
New York
$10.1M -$450K -4,189 -4%
Dodge & Cox
409
Dodge & Cox
California
$9.71M -$141K -1,310 -1%
NRI
410
NFP Retirement Inc
California
$9.66M +$1.83K +17 +0%
SCM
411
Sirios Capital Management
Massachusetts
$9.66M -$2.55M -23,746 -21%
HC
412
Headland Capital
South Carolina
$9.64M +$155K +1,441 +2%
HIMCH
413
Hartford Investment Management Co (HIMCO)
Connecticut
$9.61M -$54.6K -508 -0.6%
LOAME
414
Lombard Odier Asset Management (Europe)
United Kingdom
$9.59M +$6.84M +63,655 +248%
PFM
415
Premier Fund Managers
United Kingdom
$9.57M – – –
BCM
416
Brasada Capital Management
Texas
$9.43M +$26.4K +252 +0.3%
AAIS
417
ABN AMRO Investment Solutions
$9.41M -$813K -7,572 -8%
CGH
418
Crossmark Global Holdings
Texas
$9.4M -$543K -5,052 -5%
VCM
419
Voleon Capital Management
California
$9.39M +$5.49M +51,095 +141%
CA
420
Cornerstone Advisors
North Carolina
$9.36M +$1.66M +15,500 +22%
RG
421
Redmile Group
California
$9.16M -$11.6M -107,982 -56%
AF
422
Alerus Financial
North Dakota
$9.14M -$44.4K -413 -0.5%
OQS
423
Occudo Quantitative Strategies
Florida
$9.07M +$1.33M +12,425 +17%
GAM
424
Generali Asset Management
Italy
$8.95M -$1.21M -11,273 -12%
KCM
425
Kennedy Capital Management
Missouri
$8.9M -$996K -9,270 -10%
15 16
17
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