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
Group One Trading
201
Group One Trading
Illinois
$1.33M
MGWM
202
Marks Group Wealth Management
Minnesota
$1.3M
Janney Montgomery Scott
203
Janney Montgomery Scott
Pennsylvania
$1.3M
S
204
SignatureFD
Georgia
$1.29M
GVAG
205
Great Valley Advisor Group
Delaware
$1.28M
ORI
206
Oak Ridge Investments
Illinois
$1.26M
OAC
207
OMERS Administration Corp
Ontario, Canada
$1.25M
WAS
208
WESPAC Advisors SoCal
California
$1.24M
PS
209
Principal Securities
Iowa
$1.23M
SAM
210
Simplify Asset Management
Nevada
$1.22M
Daiwa Securities Group
211
Daiwa Securities Group
Japan
$1.22M
SG Americas Securities
212
SG Americas Securities
New York
$1.2M
ECM
213
ExodusPoint Capital Management
New York
$1.12M
RFC
214
Regions Financial Corp
Alabama
$1.09M
P
215
&Partners
Tennessee
$1.08M
Loomis, Sayles & Company
216
Loomis, Sayles & Company
Massachusetts
$1.06M
RhumbLine Advisers
217
RhumbLine Advisers
Massachusetts
$1.02M
KIA
218
Knollwood Investment Advisory
Maryland
$1.02M
VFA
219
Valeo Financial Advisors
Indiana
$1M
CFO
220
Callan Family Office
Pennsylvania
$1M
JIC
221
Johnson Investment Counsel
Ohio
$999K
Macquarie Group
222
Macquarie Group
Australia
$982K
GC
223
Gilbert & Cook
Iowa
$979K
HFS
224
Hantz Financial Services
Michigan
$960K
LWAM
225
Legacy Wealth Asset Management
Minnesota
$954K