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475 hedge funds and large institutions have $21.1B invested in argenx in 2026 Q1 according to their latest regulatory filings, with 63 funds opening new positions, 176 increasing their positions, 172 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed

84% more call options, than puts

Call options by funds: $251M | Put options by funds: $136M

2% more repeat investments, than reductions

Existing positions increased: 176 | Existing positions reduced: 172

2.15% less ownership

Funds ownership: 48.72%46.56% (-2.2%)

6% less funds holding

Funds holding: 507475 (-32)

16% less capital invested

Capital invested by funds: $25B → $21.1B (-$3.92B)

21% less funds holding in top 10

Funds holding in top 10: 1411 (-3)

26% less first-time investments, than exits

New positions opened: 63 | Existing positions closed: 85

Holders
475
Holders Change
-32
Holders Change %
-6.31%
% of All Funds
5.85%
Holding in Top 10
11
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-21.43%
% of All Funds
0.14%
New
63
Increased
176
Reduced
172
Closed
85
Calls
$251M
Puts
$136M
Net Calls
+$115M
Net Calls Change
-$84.4M
Name Holding Trade Value Shares
Change
Change in
Stake
Royal Bank of Canada
76
Royal Bank of Canada
Ontario, Canada
$24M -$2.15M -2,743 -8%
Victory Capital Management
77
Victory Capital Management
Texas
$23.6M -$1.25M -1,592 -5%
UBS Group
78
UBS Group
Switzerland
$23.1M -$22.5M -28,737 -48%
TLP
79
Tri Locum Partners
New York
$23.1M -$4.71M -6,018 -16%
JFG
80
Jefferies Financial Group
New York
$21.9M +$3.91K +5 +0%
Hudson Bay Capital Management
81
Hudson Bay Capital Management
Connecticut
$21.9M +$6.4M +8,178 +37%
AGP
82
Artia Global Partners
Florida
$21.7M -$27.4M -34,960 -54%
PL
83
Perpetual Ltd
Australia
$20.7M -$2.03M -2,591 -8%
UBS AM
84
UBS AM
Illinois
$20.1M +$4.7M +6,001 +28%
JHC
85
Jones Hill Capital
New York
$19M +$20.3M +25,995 New
Qube Research & Technologies (QRT)
86
Qube Research & Technologies (QRT)
United Kingdom
$18.6M +$2.41M +3,085 +14%
BBA
87
Baker Bros. Advisors
New York
$18.4M
OBAM
88
ODDO BHF Asset Management
France
$18.3M +$1.2M +1,536 +7%
Geode Capital Management
89
Geode Capital Management
Massachusetts
$17.2M -$98.6K -126 -0.5%
LP
90
LMR Partners
United Kingdom
$17.2M +$15.4M +19,682 +517%
LPL Financial
91
LPL Financial
California
$17M -$1.89M -2,409 -9%
Voloridge Investment Management
92
Voloridge Investment Management
Florida
$16.5M +$6.68M +8,539 +61%
William Blair & Company
93
William Blair & Company
Illinois
$16.4M -$3.08M -3,933 -15%
Natixis Advisors
94
Natixis Advisors
Massachusetts
$14.9M -$1.66M -2,120 -9%
HSBC Holdings
95
HSBC Holdings
United Kingdom
$14.9M +$15.9M +20,379 New
Schroder Investment Management Group
96
Schroder Investment Management Group
United Kingdom
$14.8M +$7.41M +9,471 +82%
M
97
Mirova
France
$14.5M +$15.5M +19,833 New
HF
98
HRT Financial
New York
$13.7M -$728K -930 -5%
Squarepoint
99
Squarepoint
New York
$13.6M -$7.45M -9,523 -34%
Bank of New York Mellon
100
Bank of New York Mellon
New York
$12.5M +$496K +634 +4%