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argenx
ARGX

Overview Fund Activity

428 hedge funds and large institutions have $17.7B invested in argenx in 2025 Q2 according to their latest regulatory filings, with 52 funds opening new positions, 176 increasing their positions, 144 reducing their positions, and 60 closing their positions.

Holders
428
Holders Change
-14
Holders Change %
-3.17%
% of All Funds
5.75%
Holding in Top 10
17
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-5.56%
% of All Funds
0.23%
New
52
Increased
176
Reduced
144
Closed
60
Calls
$236M
Puts
$100M
Net Calls
+$136M
Net Calls Change
-$9.58M

Top Buyers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$1.41B
2
Citadel Advisors
2
Citadel Advisors
Florida
$477M
3
Millennium Management
3
Millennium Management
New York
$237M
4
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$164M
5
Franklin Resources
5
Franklin Resources
California
$154M

Top Sellers

1
BlackRock
1
BlackRock
New York
$303M
2
Morgan Stanley
2
Morgan Stanley
New York
$237M
3
Artisan Partners
3
Artisan Partners
Wisconsin
$1.3B
4
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$2.75B
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$2.99B
Name Market Value Shares Shares
Change 		Shares
Change %
BAMCO Inc
26
BAMCO Inc
New York
$99.6M 180,733 -32,667 -15%
Marshall Wace
27
Marshall Wace
United Kingdom
$98M 177,724 +50,950 +40%
RSCM
28
Rock Springs Capital Management
Maryland
$96.9M 175,750 – –
1832 Asset Management
29
1832 Asset Management
Ontario, Canada
$95M 172,400 -10,900 -6%
Fiera Capital (Canada)
30
Fiera Capital (Canada)
Quebec, Canada
$87.4M 158,474 +4,058 +3%
JFG
31
Jefferies Financial Group
New York
$85.7M 155,400 -60,600 -28%
CC
32
Checkpoint Capital
California
$82.7M 149,977 +34,977 +30%
Goldman Sachs
33
Goldman Sachs
New York
$78.4M 142,150 -26,615 -16%
D.E. Shaw & Co
34
D.E. Shaw & Co
New York
$76M 137,964 -122,361 -47%
TCM
35
TimesSquare Capital Management
New York
$73.6M 133,580 +8,285 +7%
Lazard Asset Management
36
Lazard Asset Management
New York
$70.3M 127,488 +57,238 +81%
Legal & General Group
37
Legal & General Group
United Kingdom
$69.3M 125,809 +11,715 +10%
EAM
38
Eventide Asset Management
Massachusetts
$69.1M 125,383 +11,640 +10%
Federated Hermes
39
Federated Hermes
Pennsylvania
$68.2M 123,659 +14,714 +14%
TD Asset Management
40
TD Asset Management
Ontario, Canada
$66.2M 120,042 -20,533 -15%
Assenagon Asset Management
41
Assenagon Asset Management
Luxembourg
$61.8M 112,057 +1,667 +2%
Ameriprise
42
Ameriprise
Minnesota
$61.3M 111,195 +42,319 +61%
Lord, Abbett & Co
43
Lord, Abbett & Co
New Jersey
$55.7M 101,079 -173,621 -63%
PL
44
Perpetual Ltd
Australia
$53.4M 96,955 -17,575 -15%
Ensign Peak Advisors
45
Ensign Peak Advisors
Utah
$51.4M 93,336 +47,384 +103%
Caisse de Depot et Placement du Quebec (CDPQ)
46
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$50.1M 90,895 +28,821 +46%
Balyasny Asset Management
47
Balyasny Asset Management
Illinois
$49.2M 89,296 +79,659 +827%
BNP Paribas Asset Management
48
BNP Paribas Asset Management
France
$48.2M 87,414 +62,044 +245%
Envestnet Asset Management
49
Envestnet Asset Management
Illinois
$47.9M 86,861 +7,393 +9%
Public Sector Pension Investment Board (PSP Investments)
50
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$45.2M 82,082 – –
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