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ARGX
2 quarters

Position history for WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's holdings in ARGENX SE

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds 266,067 shares of ARGX (ARGENX SE), worth $194.4M as of 2026-Q1. The position was increased (+19.0% shares). ARGX represents 0.6% of WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's portfolio.

Current Value

$194.4M

Current Shares

266,067

Total Value Change

+$6.3M

Total Shares Change

+42,401

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Increased
266,067
+19.0%
$194.4M0.6%$748.72
51
2025-Q4
New
223,666
-
$188.1M0.5%$837.90
60

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

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