ARGX icon

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 %
Optiver Holding
101
Optiver Holding
Netherlands
$9.59M 17,394 +13,599 +358%
CP
102
CenterBook Partners
Connecticut
$9.57M 17,355 -2,968 -15%
SPPAM
103
Summit Partners Public Asset Management
Massachusetts
$9.44M 17,123 -62,877 -79%
Jane Street
104
Jane Street
New York
$9.11M 16,520 -11,738 -42%
VOYA Investment Management
105
VOYA Investment Management
Georgia
$8.74M 15,855 +950 +6%
ITP
106
Iron Triangle Partners
Connecticut
$8.58M 15,567 -12,307 -44%
MML Investors Services
107
MML Investors Services
Massachusetts
$8.48M 15,380 +2,874 +23%
AIC
108
AWM Investment Company
New York
$8.27M 15,000 -8,000 -35%
Capital Fund Management (CFM)
109
Capital Fund Management (CFM)
France
$8.26M 14,993 +14,993 New
EAM
110
Erste Asset Management
Austria
$8.12M 14,496 +696 +5%
Two Sigma Advisers
111
Two Sigma Advisers
New York
$7.72M 14,000 -16,200 -54%
DA
112
DCF Advisers
Connecticut
$7.52M 13,650 -700 -5%
Canada Life
113
Canada Life
Manitoba, Canada
$7.28M 13,194 -2,001 -13%
QF
114
QVT Financial
New York
$7.18M 13,030 – –
TAM
115
Thematics Asset Management
France
$6.38M 11,576 +11,576 New
SP
116
SIH Partners
Delaware
$6.33M 11,481 +9,475 +472%
UIM
117
USS Investment Management
United Kingdom
$6.31M 11,450 -1,013 -8%
BCI
118
Brinker Capital Investments
Pennsylvania
$5.67M 10,294 +1,558 +18%
SVCM
119
Saturn V Capital Management
Texas
$5.67M 10,285 -3,577 -26%
CGH
120
Crossmark Global Holdings
Texas
$5.62M 10,195 +405 +4%
EAM
121
EFG Asset Management
Oregon
$5.57M 10,109 -646 -6%
Stifel Financial
122
Stifel Financial
Missouri
$5.57M 10,105 -182 -2%
T. Rowe Price Investment Management
123
T. Rowe Price Investment Management
Maryland
$5.24M 9,510 -71,137 -88%
Bank of Montreal
124
Bank of Montreal
Ontario, Canada
$5.2M 9,433 +130 +1%
AssetMark Inc
125
AssetMark Inc
California
$4.98M 9,027 +101 +1%
3 4
5
6 7