Jefferies Financial Group’s argenx ARGX Stock Holding History

Jefferies Financial Group’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	-90,400	Closed	-$66.7M	–	1849
2025 Q3	$66.7M	Hold	90,400	–	–	0.31%	42
2025 Q2	$49.8M	Sell	90,400 -59,600	-40%	-$34.6M	0.42%	39
2025 Q1	$88.8M	Hold	150,000	–	–	0.78%	17
2024 Q4	$92.3M	Sell	150,000 -9,000	-6%	-$5.27M	0.55%	27
2024 Q3	$86.2M	Buy	159,000 +150,000	+1,667%	+$75.8M	0.62%	23
2024 Q2	$3.87M	Hold	9,000	–	–	0.04%	365
2024 Q1	$3.54M	Sell	9,000 -3,500	-28%	-$1.36M	0.03%	396
2023 Q4	$4.76M	Buy	+12,500	New	+$5.82M	0.03%	420
2023 Q3	–	Sell	-1,300	Closed	-$507K	–	1607
2023 Q2	$507K	Buy	+1,300	New	+$511K	﹤0.01%	1174

Other funds holding ARGX

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return

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 New York $5.72T AUM 30.48% 1-Year Est. Return

RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Jefferies Financial Group's ARGX Position: Q1 2026 in Review

Jefferies Financial Group increased its argenx (ARGX) stake by 0.02% in Q1 2026, buying an estimated $3.91K and bringing the position to 30,005 shares worth $21.9M. The position accounts for 0.15% of the portfolio, ranked #109.

Jefferies Financial Group first reported a position in ARGX in Q2 2023 and has held it in 12 quarters since. The position peaked at $133M in Q4 2024. 475 funds tracked by Wall St. Rank hold ARGX as of Q1 2026.

Jefferies Financial Group held 30,005 shares of argenx worth $21.9M as of Q1 2026.
Jefferies Financial Group bought 5 argenx shares in Q1 2026, an estimated $3.91K.
argenx made up 0.15% of Jefferies Financial Group's portfolio in Q1 2026, its #109 holding.
Jefferies Financial Group first reported a position in argenx in Q2 2023 and has held it in 12 quarters since.
Jefferies Financial Group's argenx position peaked at $133M in Q4 2024.
475 funds tracked by Wall St. Rank held argenx as of Q1 2026.

Based on Jefferies Financial Group's 13F filing for Q1 2026, filed 8 May 2026.