Alkeon Capital Management
ARGX icon

Alkeon Capital Management’s argenx ARGX Stock Holding History

Alkeon 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
2025
Q4 		– Sell
-175,000
Closed -$129M – 115
2025
Q3 		$129M Buy
175,000
+100,000
+133% +$65.9M 0.19% 60
2025
Q2 		$41.3M Hold
75,000
– – 0.07% 81
2025
Q1 		$44.4M Hold
75,000
– – 0.09% 83
2024
Q4 		$46.1M Sell
75,000
-270,000
-78% -$158M 0.09% 74
2024
Q3 		$187M Buy
345,000
+45,000
+15% +$22.7M 0.32% 48
2024
Q2 		$129M Buy
+300,000
New +$115M 0.21% 58
2018
Q4 		– Sell
-12,470
Closed -$946K – 124
2018
Q3 		$946K Hold
12,470
– – ﹤0.01% 120
2018
Q2 		$1.03M Hold
12,470
– – ﹤0.01% 117
2018
Q1 		$1M Buy
+12,470
New +$942K 0.01% 113

Other funds holding ARGX

Fidelity Investments
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T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Alkeon Capital Management's ARGX Position: Q4 2025 in Review

Alkeon Capital Management sold out of argenx (ARGX) in Q4 2025, closing a stake of 175,000 shares — an estimated $129M sold.

Alkeon Capital Management first reported a position in ARGX in Q1 2018 and held it in 9 quarters. The position peaked at $187M in Q3 2024. 508 funds tracked by Wall St. Rank hold ARGX as of Q4 2025.

  • Alkeon Capital Management reported no remaining argenx position as of Q4 2025 after selling out during the quarter.
  • Alkeon Capital Management sold 175,000 argenx shares in Q4 2025, an estimated $129M.
  • Alkeon Capital Management first reported a position in argenx in Q1 2018 and held it in 9 quarters.
  • Alkeon Capital Management's argenx position peaked at $187M in Q3 2024.
  • 508 funds tracked by Wall St. Rank held argenx as of Q4 2025.

Based on Alkeon Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.