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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 %
MYAM
451
Meiji Yasuda Asset Management
Japan
$7.78M -$2.17M -20,242 -22%
SC
452
SummitTX Capital
Texas
$7.76M +$171K +1,595 +2%
LSA
453
L & S Advisors
California
$7.74M +$916K +8,525 +13%
MSRPS
454
Maryland State Retirement & Pension System
Maryland
$7.71M +$329K +3,059 +4%
FMI
455
Factory Mutual Insurance
Massachusetts
$7.64M – – –
Parallax Volatility Advisers
456
Parallax Volatility Advisers
California
$7.49M -$12.5M -115,956 -62%
KOCAA
457
Knights of Columbus Asset Advisors
Connecticut
$7.4M +$557K +5,188 +8%
NMERB
458
New Mexico Educational Retirement Board
New Mexico
$7.4M – – –
LOAMS
459
Lombard Odier Asset Management (Switzerland)
Switzerland
$7.36M +$1.2M +11,159 +19%
AIM
460
Aigen Investment Management
New York
$7.34M +$377K +3,509 +5%
SAM
461
Silvercrest Asset Management
New York
$7.33M +$283K +2,635 +4%
EAM
462
EdenTree Asset Management
United Kingdom
$7.29M -$1.57M -14,630 -18%
VIM
463
Vinva Investment Management
Australia
$7.26M +$1.43M +13,444 +25%
CAPTRUST Financial Advisors
464
CAPTRUST Financial Advisors
North Carolina
$7.25M +$628K +5,849 +9%
VRS
465
Virginia Retirement Systems
Virginia
$7.14M -$5.22M -48,600 -42%
1832 Asset Management
466
1832 Asset Management
Ontario, Canada
$7.1M -$84M -782,019 -92%
BWL
467
Bogart Wealth LLC
Virginia
$7.09M +$330K +3,070 +5%
Envestnet Portfolio Solutions
468
Envestnet Portfolio Solutions
Illinois
$7.08M -$96.8K -901 -1%
MGP
469
Metis Global Partners
California
$7.08M -$767K -7,142 -10%
SEIA
470
Signature Estate & Investment Advisors
California
$7.06M +$7.06M +65,754 New
WA
471
Waverly Advisors
Alabama
$7.06M +$236K +2,195 +3%
PAMP
472
Polar Asset Management Partners
Ontario, Canada
$7.05M -$522K -4,862 -7%
CRCM
473
Crystal Rock Capital Management
Illinois
$6.96M -$489K -4,550 -7%
CB
474
Commerce Bank
Missouri
$6.94M +$547K +5,092 +9%
LFG
475
Larson Financial Group
Missouri
$6.8M +$943K +8,781 +16%
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