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Boston Scientific
BSX

Overview Fund Activity

1,653 hedge funds and large institutions have $143B invested in Boston Scientific in 2025 Q2 according to their latest regulatory filings, with 151 funds opening new positions, 739 increasing their positions, 537 reducing their positions, and 86 closing their positions.

Holders
1,653
Holders Change
+33
Holders Change %
+2.04%
% of All Funds
22.19%
Holding in Top 10
39
Holding in Top 10 Change
-11
Holding in Top 10 Change %
-22%
% of All Funds
0.52%
New
151
Increased
739
Reduced
537
Closed
86
Calls
$863M
Puts
$692M
Net Calls
+$171M
Net Calls Change
-$85.1M

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 Market Value Shares Shares
Change 		Shares
Change %
PAM
176
Panagora Asset Management
Massachusetts
$71.7M 667,889 -443,488 -40%
Tudor Investment Corp
177
Tudor Investment Corp
Connecticut
$69.9M 650,620 +394,489 +154%
O
178
Ossiam
France
$69.8M 650,214 -198,453 -23%
Los Angeles Capital Management
179
Los Angeles Capital Management
California
$69.2M 644,320 +413,643 +179%
GLF
180
Groupe la Francaise
France
$67.9M 632,131 +297,049 +89%
NC
181
Nicholas Company
Wisconsin
$67.4M 627,158 – –
SSA
182
Schonfeld Strategic Advisors
New York
$66.7M 620,681 +388,455 +167%
KK
183
KLP Kapitalforvaltning
Norway
$66M 614,056 +26,300 +4%
Toronto Dominion Bank
184
Toronto Dominion Bank
Ontario, Canada
$65.1M 606,034 -280,406 -32%
CWM
185
CIBC World Markets
New York
$63M 586,157 +8,383 +1%
CC
186
Chicago Capital
Illinois
$62.9M 585,159 +87,168 +18%
GIA
187
Gateway Investment Advisers
Ohio
$62.3M 580,313 -23,550 -4%
CHP
188
Castle Hook Partners
New York
$62.2M 579,148 -249,758 -30%
ZIC
189
ZWJ Investment Counsel
Georgia
$60.8M 565,752 -37,879 -6%
Thrivent Financial for Lutherans
190
Thrivent Financial for Lutherans
Minnesota
$60.6M 564,839 +19,264 +4%
State of Tennessee, Department of Treasury
191
State of Tennessee, Department of Treasury
Tennessee
$60.4M 562,611 +64,742 +13%
ERSOT
192
Employees Retirement System of Texas
Texas
$60.1M 559,851 -29,649 -5%
BFS
193
Bradley Foster & Sargent
Connecticut
$59.6M 554,424 -8,670 -2%
MSV
194
MN Services Vermogensbeheer
Netherlands
$59.4M 553,000 +12,700 +2%
IHAM
195
Integral Health Asset Management
New York
$59.1M 550,000 -100,000 -15%
HPG
196
Harvest Portfolios Group
Ontario, Canada
$59M 549,602 +6,234 +1%
SCB
197
Saudi Central Bank
Saudi Arabia
$57.9M 539,423 +538,843 +92,904%
MIF
198
Mediolanum International Funds
Ireland
$56M 525,994 +103,124 +24%
EAM
199
Erste Asset Management
Austria
$55.3M 516,663 +229,053 +80%
State of New Jersey Common Pension Fund D
200
State of New Jersey Common Pension Fund D
New Jersey
$53.3M 496,086 +555 +0.1%
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