Millennium Management
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Millennium Management’s argenx ARGX Stock Holding History

Millennium 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
Q4 		– Sell
-15,300
Closed -$8.29M – 5934
2024
Q3 		$8.29M Sell
15,300
-29,400
-66% -$14.9M ﹤0.01% 2365
2024
Q2 		$19.2M Buy
44,700
+20,200
+82% +$7.73M 0.01% 1531
2024
Q1 		$9.65M Buy
24,500
+14,500
+145% +$5.62M ﹤0.01% 2224
2023
Q4 		$3.8M Buy
+10,000
New +$4.66M ﹤0.01% 3029
2023
Q3 		– Sell
-37,500
Closed -$14.6M – 6088
2023
Q2 		$14.6M Buy
+37,500
New +$14.7M 0.01% 1674
2023
Q1 		– Sell
-9,800
Closed -$3.71M – 6332
2022
Q4 		$3.71M Buy
+9,800
New +$3.67M ﹤0.01% 3052
2022
Q3 		– Sell
-22,500
Closed -$8.53M – 7040
2022
Q2 		$8.53M Buy
+22,500
New +$7.25M 0.01% 2237

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
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 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
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

Millennium Management's ARGX Position: Q1 2026 in Review

Millennium Management increased its argenx (ARGX) stake by 20% in Q1 2026, buying an estimated $9.32M and bringing the position to 72,365 shares worth $52.8M. The position accounts for 0.02% of the portfolio, ranked #792.

Millennium Management first reported a position in ARGX in Q4 2017 and has held it in 33 quarters since. The position peaked at $256M in Q3 2025. 476 funds tracked by Wall St. Rank hold ARGX as of Q1 2026.

  • Millennium Management held 72,365 shares of argenx worth $52.8M as of Q1 2026.
  • Millennium Management bought 11,907 argenx shares in Q1 2026, an estimated $9.32M.
  • argenx made up 0.02% of Millennium Management's portfolio in Q1 2026, its #792 holding.
  • Millennium Management first reported a position in argenx in Q4 2017 and has held it in 33 quarters since.
  • Millennium Management's argenx position peaked at $256M in Q3 2025.
  • 476 funds tracked by Wall St. Rank held argenx as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.