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ARGX
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Position history for Janus Henderson Group Ltd.'s holdings in ARGENX SE

Janus Henderson Group Ltd. holds 2.5M shares of ARGX (ARGENX SE), worth $1.8B as of 2026-Q1. The position was increased (+3.4% shares). ARGX represents 0.9% of Janus Henderson Group Ltd.'s portfolio.

Current Value

$1.8B

Current Shares

2.5M

Total Value Change

+$786.1M

Total Shares Change

+73,500

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Increased
2.5M
+3.4%
$1.8B0.9%$748.72
47
2025-Q4
Decreased
2.5M
-4.5%
$2.1B0.9%$837.90
0
2025-Q3
Increased
2.6M
+0.4%
$1.9B0.9%$719.04
45
2025-Q2
Increased
2.6M
+19.7%
$1.4B0.7%$560.14
53
2025-Q1
Decreased
2.1M
-7.3%
$1.3B0.7%$589.15
0
2024-Q4
Decreased
2.3M
-6.7%
$1.4B0.7%$619.96
0
2024-Q3
Increased
2.5M
+0.4%
$1.3B0.7%$536.11
45
2024-Q2
Increased
2.5M
+11.3%
$1.1B0.6%$430.04
50

Other major holders of ARGX: FMR LLC, PRICE T ROWE ASSOCIATES INC /MD/

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