457 hedge funds and large institutions have $22.5B invested in argenx in 2025 Q3 according to their latest regulatory filings, with 90 funds opening new positions, 173 increasing their positions, 135 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
457
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
14
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$542M
Puts
$253M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Mackenzie Financial
151
Mackenzie Financial
Ontario, Canada
$3.05M
HS
152
HighVista Strategies
Massachusetts
$3M
VMPIC
153
Varma Mutual Pension Insurance Co
Finland
$2.95M
SAM
154
Silvercrest Asset Management
New York
$2.94M
SAM
155
Sectoral Asset Management
Quebec, Canada
$2.87M
GGHC
156
Gilder Gagnon Howe & Co
New York
$2.79M
AIC
157
AWM Investment Company
New York
$2.77M
TI
158
Trexquant Investment
Connecticut
$2.76M
M&T Bank
159
M&T Bank
New York
$2.72M
Allianz Asset Management
160
Allianz Asset Management
Germany
$2.71M
PCIG
161
Partners Capital Investment Group
Massachusetts
$2.58M
KCM
162
Kennedy Capital Management
Missouri
$2.58M
EGM
163
Engineers Gate Manager
New York
$2.55M
OAM
164
Oppenheimer Asset Management
New York
$2.52M
Russell Investments Group
165
Russell Investments Group
United Kingdom
$2.52M
Mariner
166
Mariner
Kansas
$2.5M
VPIM
167
Vanguard Personalized Indexing Management
California
$2.47M
SP
168
SWS Partners
Ohio
$2.45M
PM
169
Prosight Management
Texas
$2.43M
Cambridge Investment Research Advisors
170
Cambridge Investment Research Advisors
Iowa
$2.39M
OSAM
171
O'Shaughnessy Asset Management
Connecticut
$2.33M
MMEA
172
Main Management ETF Advisors
California
$2.29M
CCIA
173
Campbell & Co Investment Adviser
Maryland
$2.21M
MFS
174
Mirabella Financial Services
United Kingdom
$2.19M
BCM
175
Bayesian Capital Management
New York
$2.15M