462 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, 174 increasing their positions, 137 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
462
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
SMH
201
Sanders Morris Harris
Texas
$1.35M
Group One Trading
202
Group One Trading
Illinois
$1.33M
MGWM
203
Marks Group Wealth Management
Minnesota
$1.3M
Janney Montgomery Scott
204
Janney Montgomery Scott
Pennsylvania
$1.3M
S
205
SignatureFD
Georgia
$1.29M
GVAG
206
Great Valley Advisor Group
Delaware
$1.28M
ORI
207
Oak Ridge Investments
Illinois
$1.26M
OAC
208
OMERS Administration Corp
Ontario, Canada
$1.25M
WAS
209
WESPAC Advisors SoCal
California
$1.24M
PS
210
Principal Securities
Iowa
$1.23M
SAM
211
Simplify Asset Management
Nevada
$1.22M
Daiwa Securities Group
212
Daiwa Securities Group
Japan
$1.22M
SG Americas Securities
213
SG Americas Securities
New York
$1.2M
ECM
214
ExodusPoint Capital Management
New York
$1.12M
RFC
215
Regions Financial Corp
Alabama
$1.09M
P
216
&Partners
Tennessee
$1.08M
Loomis, Sayles & Company
217
Loomis, Sayles & Company
Massachusetts
$1.06M
RhumbLine Advisers
218
RhumbLine Advisers
Massachusetts
$1.02M
KIA
219
Knollwood Investment Advisory
Maryland
$1.02M
VFA
220
Valeo Financial Advisors
Indiana
$1M
CFO
221
Callan Family Office
Pennsylvania
$1M
JIC
222
Johnson Investment Counsel
Ohio
$999K
Macquarie Group
223
Macquarie Group
Australia
$982K
GC
224
Gilbert & Cook
Iowa
$979K
HFS
225
Hantz Financial Services
Michigan
$960K