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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
Acadian Asset Management
126
Acadian Asset Management
Massachusetts
$93.8M
Aviva
127
Aviva
United Kingdom
$93.4M
Caisse de Depot et Placement du Quebec (CDPQ)
128
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$93.2M
BG
129
Bellevue Group
Switzerland
$92M
FAM
130
Fred Alger Management
New York
$91.3M
HNB
131
Huntington National Bank
Ohio
$88.2M
GAM
132
Groupama Asset Management
France
$86.3M
Impax Asset Management Group
133
Impax Asset Management Group
United Kingdom
$85.3M
Balyasny Asset Management
134
Balyasny Asset Management
Illinois
$85.1M
ECSS
135
Eurizon Capital SGR SpA
$84.8M
MMH
136
Menora Mivtachim Holdings
Israel
$83.7M
Bank of Montreal
137
Bank of Montreal
Ontario, Canada
$83.1M
Nordea Investment Management
138
Nordea Investment Management
Sweden
$82.1M
State Board of Administration of Florida Retirement System
139
State Board of Administration of Florida Retirement System
Florida
$80.9M
Cerity Partners
140
Cerity Partners
New York
$79.3M
CS
141
Candriam SCA
Luxembourg
$79.2M
National Bank of Canada
142
National Bank of Canada
Quebec, Canada
$79.1M
Swedbank
143
Swedbank
Sweden
$79M
New York State Teachers Retirement System (NYSTRS)
144
New York State Teachers Retirement System (NYSTRS)
New York
$75.6M
SAM
145
Storebrand Asset Management
Norway
$75.1M
PNC Financial Services Group
146
PNC Financial Services Group
Pennsylvania
$72.8M
Korea Investment Corp
147
Korea Investment Corp
South Korea
$71.2M
SSA
148
Schonfeld Strategic Advisors
New York
$69.4M
Canada Life
149
Canada Life
Manitoba, Canada
$68.3M
Allspring Global Investments
150
Allspring Global Investments
North Carolina
$67.8M