Hudson Bay Capital Management
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Hudson Bay Capital Management’s argenx ARGX Stock Holding History

Hudson Bay Capital Management’s Portfolio ARGX Stock Details ARGX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q3 		– Sell
-50,000
Closed -$21.5M – 858
2024
Q2 		$21.5M Buy
+50,000
New +$19.1M 0.1% 136

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Capital World Investors
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Artisan Partners
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Wellington Management Group
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ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Hudson Bay Capital Management's ARGX Position: Q1 2026 in Review

Hudson Bay Capital Management increased its argenx (ARGX) stake by 37% in Q1 2026, buying an estimated $6.4M and bringing the position to 30,000 shares worth $21.9M. The position accounts for 0.08% of the portfolio, ranked #177.

Hudson Bay Capital Management first reported a position in ARGX in Q1 2023 and has held it in 10 quarters since. The position peaked at $37.7M in Q4 2023. 476 funds tracked by Wall St. Rank hold ARGX as of Q1 2026.

  • Hudson Bay Capital Management held 30,000 shares of argenx worth $21.9M as of Q1 2026.
  • Hudson Bay Capital Management bought 8,178 argenx shares in Q1 2026, an estimated $6.4M.
  • argenx made up 0.08% of Hudson Bay Capital Management's portfolio in Q1 2026, its #177 holding.
  • Hudson Bay Capital Management first reported a position in argenx in Q1 2023 and has held it in 10 quarters since.
  • Hudson Bay Capital Management's argenx position peaked at $37.7M in Q4 2023.
  • 476 funds tracked by Wall St. Rank held argenx as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.