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Ionis Pharmaceuticals

339 hedge funds and large institutions have $5.01B invested in Ionis Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 54 funds opening new positions, 102 increasing their positions, 122 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more call options, than puts

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

more ownership

Funds ownership:

less funds holding

Funds holding:

11% less capital invested

Capital invested by funds: $5.61B → $5.01B (-$606M)

11% less first-time investments, than exits

New positions opened: 54 | Existing positions closed: 61

16% less repeat investments, than reductions

Existing positions increased: 102 | Existing positions reduced: 122

Holders
339
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$24.8M
Puts
$18.8M
Net Calls
Net Calls Change

Top Buyers

1 +$79.4M
2 +$60.5M
3 +$57.7M
4
Citadel Advisors
Citadel Advisors
Florida
+$39.6M
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$27.9M
Name Holding Trade Value Shares
Change
Change in
Stake
Verition Fund Management
126
Verition Fund Management
Connecticut
$1.58M
Ohio Public Employees Retirement System (OPERS)
127
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.45M
Schroder Investment Management Group
128
Schroder Investment Management Group
United Kingdom
$1.43M
RAM
129
Readystate Asset Management
Illinois
$1.4M
Canada Life
130
Canada Life
Manitoba, Canada
$1.33M
Handelsbanken Fonder
131
Handelsbanken Fonder
Sweden
$1.3M
RBI
132
Raiffeisen Bank International
Austria
$1.3M
NSEDCP
133
NJ State Employees Deferred Compensation Plan
New Jersey
$1.27M
GC
134
Guggenheim Capital
Illinois
$1.25M
PD
135
Point72 (DIFC)
United Arab Emirates
$1.25M
ASRS
136
Arizona State Retirement System
Arizona
$1.23M
William Blair & Company
137
William Blair & Company
Illinois
$1.16M
PCM
138
Prelude Capital Management
New York
$1.14M
GD
139
Grandfield & Dodd
New York
$1.14M
CC
140
Capital Counsel
New York
$1.12M
Zurich Cantonal Bank
141
Zurich Cantonal Bank
Switzerland
$1.1M
Creative Planning
142
Creative Planning
Kansas
$1.09M
SC
143
SummitTX Capital
Texas
$1.06M
AI
144
Allostery Investments
Connecticut
$1.06M
PA
145
Profund Advisors
Maryland
$1.05M
PAG
146
Private Advisor Group
New Jersey
$1.04M
Pathstone Holdings
147
Pathstone Holdings
New Jersey
$1.03M
Mariner
148
Mariner
Kansas
$1.01M
CUAMC
149
China Universal Asset Management Company
China
$962K
LIP
150
Liontrust Investment Partners
United Kingdom
$917K