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Boston Scientific
BSX

Overview Fund Activity

1,659 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, 538 reducing their positions, and 86 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,659
Holders Change
+39
Holders Change %
+2.41%
% of All Funds
22.27%
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
538
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 %
NP
226
NS Partners
United Kingdom
$38.5M -$1.02M -9,538 -3%
RSCM
227
Rock Springs Capital Management
Maryland
$38.1M +$8.38M +78,000 +28%
FRAF
228
Första AP-fonden
Sweden
$38.1M -$5.01M -46,600 -12%
US Bancorp
229
US Bancorp
Minnesota
$38M +$250K +2,327 +0.7%
SCM
230
Suvretta Capital Management
New York
$38M +$9.82M +91,462 +35%
Cetera Investment Advisers
231
Cetera Investment Advisers
Illinois
$37.4M +$1.44M +13,412 +4%
QCM
232
Quantinno Capital Management
New York
$36.9M +$11.5M +106,715 +45%
BPC
233
Banque Pictet & Cie
Switzerland
$36.6M +$7.09M +66,004 +24%
HF
234
HRT Financial
New York
$36.2M +$15.3M +142,491 +73%
CIS
235
Capital International Sarl
California
$36.2M +$2.02M +18,821 +6%
PMAM
236
Picton Mahoney Asset Management
Ontario, Canada
$35.7M +$4.07M +37,904 +13%
Diamond Hill Capital Management
237
Diamond Hill Capital Management
Ohio
$35.6M -$6.56M -61,108 -16%
DILIC
238
Dai-ichi Life Insurance Company
Japan
$35.1M -$2.79M -25,993 -7%
Mirae Asset Global ETFs Holdings
239
Mirae Asset Global ETFs Holdings
Hong Kong
$35.1M -$528K -4,918 -1%
Jane Street
240
Jane Street
New York
$35.1M -$7.93M -73,846 -18%
GF
241
Gabelli Funds
New York
$34.8M +$16.1K +150 +0%
Focus Partners Wealth
242
Focus Partners Wealth
Massachusetts
$34.7M -$4.61M -42,966 -12%
APM
243
Avidity Partners Management
Texas
$34.6M -$1.53M -14,200 -4%
Retirement Systems of Alabama
244
Retirement Systems of Alabama
Alabama
$34.1M +$80.7K +751 +0.2%
LGF
245
LGT Group Foundation
Liechtenstein
$33.1M -$312K -2,903 -0.9%
WP
246
Woodline Partners
California
$33M -$10.8M -100,223 -25%
II
247
IFM Investors
Australia
$32.7M +$2.11M +19,673 +7%
AB
248
Amalgamated Bank
New York
$32.3M +$919K +8,559 +3%
Mariner
249
Mariner
Kansas
$32.3M +$6.03M +56,113 +23%
Susquehanna International Group
250
Susquehanna International Group
Pennsylvania
$32.1M +$17.9M +166,984 +127%
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