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Boston Scientific
BSX

Overview Fund Activity

1,620 hedge funds and large institutions have $133B invested in Boston Scientific in 2025 Q1 according to their latest regulatory filings, with 233 funds opening new positions, 657 increasing their positions, 544 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,620
Holders Change
+128
Holders Change %
+8.58%
% of All Funds
22%
Holding in Top 10
50
Holding in Top 10 Change
+11
Holding in Top 10 Change %
+28.21%
% of All Funds
0.68%
New
233
Increased
657
Reduced
544
Closed
75
Calls
$1.07B
Puts
$819M
Net Calls
+$256M
Net Calls Change
+$371M

Top Buyers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
+$533M
2
Bank of America
Bank of America
North Carolina
+$411M
3
Two Sigma Advisers
Two Sigma Advisers
New York
+$348M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$310M
5
SP
SurgoCap Partners
New York
+$267M

Top Sellers

1
Franklin Resources
Franklin Resources
California
-$917M
2
DZ Bank
DZ Bank
Germany
-$461M
3
Fidelity Investments
Fidelity Investments
Massachusetts
-$388M
4
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
-$317M
5
Impax Asset Management Group
Impax Asset Management Group
United Kingdom
-$304M
Name Holding Trade Value Shares
Change 		Shares
Change %
Lido Advisors
351
Lido Advisors
California
$13.9M +$298K +2,954 +2%
FP
352
Financial Perspectives
Minnesota
$13.8M -$780K -7,728 -5%
Rafferty Asset Management
353
Rafferty Asset Management
New York
$13.8M -$3.1M -30,681 -18%
SC
354
Sapient Capital
Indiana
$13.7M +$62.7K +622 +0.5%
RIM
355
Rakuten Investment Management
Japan
$13.4M +$13.4M +134,709 New
HP
356
HealthInvest Partners
Sweden
$13.3M -$2.21M -21,949 -14%
Susquehanna International Group
357
Susquehanna International Group
Pennsylvania
$13.3M -$49.8M -493,807 -79%
MCP
358
Meridiem Capital Partners
Texas
$13.1M +$13.1M +130,190 New
PA
359
Perceptive Advisors
New York
$13.1M +$13.1M +130,000 New
AGP
360
Artia Global Partners
Florida
$13.1M +$13.1M +129,700 New
QIM
361
Quest Investment Management
Oregon
$12.9M -$2.07M -20,528 -14%
GC
362
Guggenheim Capital
Illinois
$12.9M +$976K +9,678 +8%
NIM
363
NEOS Investment Management
Connecticut
$12.8M +$1.83M +18,129 +17%
FAB
364
First American Bank
Illinois
$12.8M -$332K -3,295 -3%
OPERF
365
Oregon Public Employees Retirement Fund
Oregon
$12.8M +$27.2K +270 +0.2%
GI
366
GAMCO Investors
Connecticut
$12.8M -$277K -2,743 -2%
MML Investors Services
367
MML Investors Services
Massachusetts
$12.7M +$1.79M +17,786 +17%
ABTD
368
Arvest Bank Trust Division
Oklahoma
$12.6M +$12.6M +125,061 New
ZDA
369
Zweig-DiMenna Associates
New York
$12.4M -$16.1M -159,900 -57%
BP
370
BNP Paribas
France
$12.3M +$1.42M +4,395 +13%
Osaic Holdings
371
Osaic Holdings
Arizona
$12.2M +$105K +1,038 +0.9%
MFG
372
Merit Financial Group
Georgia
$12.1M +$1.31M +12,938 +12%
Nordea Investment Management
373
Nordea Investment Management
Sweden
$12M +$97.8K +981 +0.8%
MSU
374
Mizuho Securities USA
New York
$11.9M -$2.19M -21,676 -16%
William Blair & Company
375
William Blair & Company
Illinois
$11.9M +$9.63M +95,505 +426%
13 14
15
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