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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 %
FC
351
FACT Capital
New York
$15.5M -$1.6M -14,907 -9%
STP
352
Science & Technology Partners
New York
$15.1M +$12M +112,169 +392%
FTM
353
First Turn Management
California
$14.9M -$4.22M -39,322 -22%
Verition Fund Management
354
Verition Fund Management
Connecticut
$14.8M -$21.2M -197,653 -59%
GIM
355
Generate Investment Management
New Zealand
$14.6M -$416K -3,875 -3%
NIM
356
NEOS Investment Management
Connecticut
$14.5M +$867K +8,075 +6%
MFG
357
Merit Financial Group
Georgia
$14.5M +$1.56M +14,508 +12%
FP
358
Financial Perspectives
Minnesota
$14.4M -$327K -3,042 -2%
MML Investors Services
359
MML Investors Services
Massachusetts
$14.3M +$858K +7,990 +6%
Walleye Trading
360
Walleye Trading
New York
$13.9M +$2.5M +23,268 +22%
Nordea Investment Management
361
Nordea Investment Management
Sweden
$13.8M +$911K +8,535 +7%
SC
362
Sapient Capital
Indiana
$13.8M -$813K -7,568 -6%
OPERF
363
Oregon Public Employees Retirement Fund
Oregon
$13.7M +$129K +1,200 +0.9%
GC
364
Guggenheim Capital
Illinois
$13.7M -$40.4K -376 -0.3%
HP
365
HealthInvest Partners
Sweden
$13.6M -$654K -6,088 -5%
FAB
366
First American Bank
Illinois
$13.5M -$81.7K -761 -0.6%
Lido Advisors
367
Lido Advisors
California
$13.5M -$1.25M -11,679 -8%
ABTD
368
Arvest Bank Trust Division
Oklahoma
$13.5M +$21.9K +204 +0.2%
GI
369
GAMCO Investors
Connecticut
$13.4M -$149K -1,383 -1%
IC
370
IEQ Capital
California
$13.3M +$6.54M +60,860 +97%
SCM
371
Shelton Capital Management
Colorado
$13.1M -$15.1M -140,554 -54%
QIM
372
Quest Investment Management
Oregon
$13.1M -$732K -6,812 -5%
William Blair & Company
373
William Blair & Company
Illinois
$12.8M +$88.7K +826 +0.7%
Simplex Trading
374
Simplex Trading
Illinois
$12.7M +$3.97M +36,984 +45%
TWC
375
TD Waterhouse Canada
Ontario, Canada
$12.7M +$6.51M +62,204 +106%
13 14
15
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