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Boston Scientific

1,649 hedge funds and large institutions have $84.2B invested in Boston Scientific in 2026 Q1 according to their latest regulatory filings, with 187 funds opening new positions, 666 increasing their positions, 629 reducing their positions, and 276 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

32% less first-time investments, than exits

New positions opened: 187 | Existing positions closed: 276

32% less funds holding in top 10

Funds holding in top 10: 3725 (-12)

35% less capital invested

Capital invested by funds: $130B → $84.2B (-$45.8B)

Holders
1,649
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.56B
Puts
$640M
Net Calls
Net Calls Change

Top Buyers

1 +$1.05B
2 +$730M
3 +$706M
4
JP Morgan Chase
JP Morgan Chase
New York
+$638M
5
Two Sigma Investments
Two Sigma Investments
New York
+$555M
Name Holding Trade Value Shares
Change
Change in
Stake
PAM
176
Panagora Asset Management
Massachusetts
$51.6M
Calamos Advisors
177
Calamos Advisors
Illinois
$51.3M
Connor, Clark & Lunn Investment Management (CC&L)
178
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$50.7M
BT
179
Banque Transatlantique
France
$50.2M
VPC
180
Vestal Point Capital
New York
$50.2M
BCP
181
BSN Capital Partners
United Kingdom
$50.1M
PM
182
Prosight Management
Texas
$49.9M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
183
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$49.5M
SO
184
STRS Ohio
Ohio
$49.1M
Asset Management One
185
Asset Management One
Japan
$48.8M
APG Asset Management
186
APG Asset Management
Netherlands
$48.8M
NC
187
Nicholas Company
Wisconsin
$46.5M
VIA
188
Vanguard Investments Australia
Australia
$46.3M
Sands Capital Management
189
Sands Capital Management
Virginia
$46.2M
EDRH
190
Edmond de Rothschild Holding
Switzerland
$46.1M
Chevy Chase Trust
191
Chevy Chase Trust
Maryland
$46M
UM
192
UniSuper Management
Australia
$45.2M
Rockefeller Capital Management
193
Rockefeller Capital Management
New York
$44.7M
CCM
194
Compass Capital Management
Minnesota
$44.6M
Mitsubishi UFJ Trust & Banking
195
Mitsubishi UFJ Trust & Banking
Japan
$44.3M
ZIC
196
ZWJ Investment Counsel
Georgia
$44.2M
CI Investments Inc
197
CI Investments Inc
Ontario, Canada
$44.1M
TAM
198
Tocqueville Asset Management
New York
$42.6M
ERSOT
199
Employees Retirement System of Texas
Texas
$42.1M
QC
200
Quadrature Capital
United Kingdom
$42M