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argenx
ARGX

Overview Fund Activity

441 hedge funds and large institutions have $19.7B invested in argenx in 2025 Q1 according to their latest regulatory filings, with 82 funds opening new positions, 156 increasing their positions, 148 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
441
Holders Change
+48
Holders Change %
+12.21%
% of All Funds
5.99%
Holding in Top 10
18
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.24%
New
82
Increased
156
Reduced
148
Closed
27
Calls
$319M
Puts
$174M
Net Calls
+$145M
Net Calls Change
-$48.4M

Top Buyers

1
Millennium Management
Millennium Management
New York
+$121M
2
Capital World Investors
Capital World Investors
California
+$89.4M
3
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
+$72.9M
4
UBS Group
UBS Group
Switzerland
+$48.7M
5
Bank of America
Bank of America
North Carolina
+$48.3M

Top Sellers

1
PBA
Paradigm Biocapital Advisors
New York
-$250M
2
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$241M
3
Artisan Partners
Artisan Partners
Wisconsin
-$168M
4
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$99.7M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
-$91M
Name Holding Trade Value Shares
Change 		Shares
Change %
WSFS
201
Wilmington Savings Fund Society
Delaware
$1.14M +$85.8K +145 +8%
Susquehanna International Group
202
Susquehanna International Group
Pennsylvania
$1.11M +$714K +1,207 +181%
SCA
203
Snowden Capital Advisors
New York
$1.1M -$60.4K -102 -5%
BC
204
BIT Capital
Germany
$1.09M -$1.29M -2,185 -54%
Royal London Asset Management
205
Royal London Asset Management
United Kingdom
$1.08M -$17.7M -29,906 -94%
SFA
206
Sequoia Financial Advisors
Ohio
$1.08M +$14.2K +24 +1%
FAM
207
Fred Alger Management
New York
$1.07M -$205K -346 -16%
PAS
208
Park Avenue Securities
New York
$1.07M +$64.5K +109 +6%
TFS
209
Thoroughbred Financial Services
Tennessee
$1.05M +$338K +571 +47%
AA
210
ABC Arbitrage
France
$1.04M +$1.04M +1,758 New
SMH
211
Sanders Morris Harris
Texas
$1.04M – – –
ORI
212
Oak Ridge Investments
Illinois
$1.02M -$32K -54 -3%
S
213
SignatureFD
Georgia
$998K -$69.2K -117 -6%
KeyBank National Association
214
KeyBank National Association
Ohio
$990K -$16K -27 -2%
SAM
215
Simplify Asset Management
Nevada
$958K +$4.74K +8 +0.5%
PNC Financial Services Group
216
PNC Financial Services Group
Pennsylvania
$917K +$6.51K +11 +0.7%
P
217
&Partners
Tennessee
$908K +$222K +376 +32%
Sumitomo Mitsui Trust Group
218
Sumitomo Mitsui Trust Group
Japan
$901K -$33.1K -56 -4%
SSG
219
Summit Securities Group
New York
$888K +$888K +1,501 New
WC
220
Wexford Capital
Florida
$888K +$888K +1,500 New
VMPIC
221
Varma Mutual Pension Insurance Co
Finland
$888K -$592K -1,000 -40%
FC
222
FORA Capital
Florida
$872K +$872K +1,473 New
NA
223
NewEdge Advisors
Louisiana
$862K +$847K +1,431 +5,963%
ProShare Advisors
224
ProShare Advisors
Maryland
$855K -$48.5K -82 -5%
MMEA
225
Main Management ETF Advisors
California
$853K +$853K +1,442 New
7 8
9
10 11