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Ikarian Capital’s argenx ARGX Stock Holding History

Ikarian Capital’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
Q1 		– Sell
-78,100
Closed -$29.7M – 143
2023
Q4 		$29.7M Buy
+78,100
New +$36.4M 2.78% 8
2023
Q3 		– Sell
-132,100
Closed -$51.5M – 145
2023
Q2 		$51.5M Buy
+132,100
New +$52M 8.2% 2
2021
Q2 		– Sell
-34,500
Closed -$9.5M – 219
2021
Q1 		$9.5M Sell
34,500
-167,000
-83% -$52.8M 0.32% 72
2020
Q4 		$59.3M Buy
201,500
+200,700
+25,088% +$55.2M 2.61% 9
2020
Q3 		$209K Sell
800
-125,000
-99% -$30.1M 0.02% 155
2020
Q2 		$28.3M Hold
125,800
– – 2.25% 5
2020
Q1 		$16.6M Buy
+125,800
New +$18.4M 1.25% 20

Other funds holding ARGX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
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
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Ikarian Capital's ARGX Position: Q4 2025 in Review

Ikarian Capital sold out of argenx (ARGX) in Q4 2025, closing a stake of 5,942 shares — an estimated $4.3M sold.

Ikarian Capital first reported a position in ARGX in Q1 2020 and held it in 4 quarters. The position peaked at $26.5M in Q4 2023. 507 funds tracked by Wall St. Rank hold ARGX as of Q4 2025.

  • Ikarian Capital reported no remaining argenx position as of Q4 2025 after selling out during the quarter.
  • Ikarian Capital sold 5,942 argenx shares in Q4 2025, an estimated $4.3M.
  • Ikarian Capital first reported a position in argenx in Q1 2020 and held it in 4 quarters.
  • Ikarian Capital's argenx position peaked at $26.5M in Q4 2023.
  • 507 funds tracked by Wall St. Rank held argenx as of Q4 2025.

Based on Ikarian Capital's 13F filing for Q4 2025, filed 18 Feb 2026.