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Boston Scientific

1,690 hedge funds and large institutions have $130B invested in Boston Scientific in 2025 Q3 according to their latest regulatory filings, with 177 funds opening new positions, 760 increasing their positions, 549 reducing their positions, and 132 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding

Funds holding:

1.08% less ownership

Funds ownership: 91.29%90.2% (-1.1%)

7% less funds holding in top 10

Funds holding in top 10: 4239 (-3)

10% less capital invested

Capital invested by funds: $145B → $130B (-$14.5B)

Holders
1,690
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
39
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.13B
Puts
$989M
Net Calls
Net Calls Change

Top Buyers

1 +$671M
2 +$547M
3 +$358M
4
Millennium Management
Millennium Management
New York
+$357M
5
Citadel Advisors
Citadel Advisors
Florida
+$342M
Name Holding Trade Value Shares
Change
Change in
Stake
Royal London Asset Management
176
Royal London Asset Management
United Kingdom
$66.3M
Northwestern Mutual Wealth Management
177
Northwestern Mutual Wealth Management
Wisconsin
$65.6M
HA
178
Homestead Advisers
Virginia
$65.3M
Treasurer of the State of North Carolina
179
Treasurer of the State of North Carolina
North Carolina
$64.8M
Tudor Investment Corp
180
Tudor Investment Corp
Connecticut
$64.5M
PCH
181
Polar Capital Holdings
United Kingdom
$63.9M
Ohio Public Employees Retirement System (OPERS)
182
Ohio Public Employees Retirement System (OPERS)
Ohio
$63.1M
Thrivent Financial for Lutherans
183
Thrivent Financial for Lutherans
Minnesota
$62.1M
NC
184
Nicholas Company
Wisconsin
$61.2M
GLF
185
Groupe la Francaise
France
$60M
KK
186
KLP Kapitalforvaltning
Norway
$59.8M
O
187
Ossiam
France
$59.7M
CBU
188
CIBC Bancorp USA
Illinois
$59M
CC
189
Chicago Capital
Illinois
$57M
GIA
190
Gateway Investment Advisers
Ohio
$56.7M
SI
191
Sofinnova Investments
California
$55.6M
ZIC
192
ZWJ Investment Counsel
Georgia
$55.2M
MSV
193
MN Services Vermogensbeheer
Netherlands
$54.9M
HPG
194
Harvest Portfolios Group
Ontario, Canada
$54.9M
AAIS
195
ABN AMRO Investment Solutions
$54.8M
EGM
196
Engineers Gate Manager
New York
$54.5M
ERSOT
197
Employees Retirement System of Texas
Texas
$54.2M
Toronto Dominion Bank
198
Toronto Dominion Bank
Ontario, Canada
$54.1M
N
199
Natixis
France
$53.3M
SCB
200
Saudi Central Bank
Saudi Arabia
$52.7M