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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 %
NB
426
Norinchukin Bank
Japan
$8.9M +$742K +6,911 +9%
ET
427
Entropy Technologies
New York
$8.89M +$7.87M +73,251 +766%
RS
428
Robeco Schweiz
Switzerland
$8.82M -$2.22M -20,687 -20%
SPC
429
Spirepoint Private Client
Florida
$8.81M +$258K +2,406 +3%
FAT
430
First American Trust
California
$8.66M -$2.83M -26,394 -25%
CAG
431
Crestwood Advisors Group
Massachusetts
$8.64M -$105K -975 -1%
BFG
432
Bleakley Financial Group
New Jersey
$8.61M +$2.24M +20,881 +35%
SGH
433
Sivik Global Healthcare
Connecticut
$8.59M -$2.15M -20,000 -20%
BAMCO Inc
434
BAMCO Inc
New York
$8.59M -$6.87M -64,000 -44%
CDDEC
435
Caisse Des Depots Et Consignations
France
$8.53M -$179K -1,663 -2%
LSERS
436
Louisiana State Employees Retirement System
Louisiana
$8.39M -$129K -1,200 -2%
BHCM
437
Brevan Howard Capital Management
Jersey
$8.37M -$1.1M -10,220 -12%
SAM
438
Securian Asset Management
Minnesota
$8.3M -$75.1K -699 -0.9%
EF
439
Empowered Funds
Pennsylvania
$8.2M -$1.55M -14,406 -16%
TAM
440
Thematics Asset Management
France
$8.17M -$195K -1,818 -2%
GIBU
441
Gulf International Bank (UK)
United Kingdom
$8.13M -$994K -9,254 -11%
BLC
442
Brown, Lisle/Cummings
Rhode Island
$8.12M +$126K +1,175 +2%
IMCOOI
443
Investment Management Corp of Ontario (IMCO)
Canada
$8.11M -$1.13M -10,502 -12%
UB
444
UMB Bank
Missouri
$8.08M +$337K +3,139 +4%
AC
445
Armistice Capital
New York
$8.06M +$2.71M +25,238 +51%
Kovitz Investment Group Partners
446
Kovitz Investment Group Partners
Illinois
$8.02M +$4.25M +39,608 +113%
GAM
447
Gotham Asset Management
New York
$8M +$4.25M +39,545 +113%
EDRH
448
Edmond de Rothschild Holding
Switzerland
$7.96M -$3.61M -33,569 -31%
NG
449
NWK Group
California
$7.89M -$65.6K -611 -0.8%
NEI
450
Northwest & Ethical Investments
Ontario, Canada
$7.78M -$193K -1,800 -2%
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