XTX Topco’s argenx ARGX Stock Holding History

XTX Topco’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
2026 Q2	$3.4M	Buy	+3,670	New	+$3.03M	0.04%	639
2026 Q1	–	Sell	-4,297	Closed	-$3.61M	–	3820
2025 Q4	$3.61M	Buy	+4,297	New	+$3.68M	0.09%	231
2025 Q2	–	Sell	-5,543	Closed	-$3.28M	–	2327
2025 Q1	$3.28M	Buy	5,543 +3,503	+172%	+$2.21M	0.17%	103
2024 Q4	$1.25M	Sell	2,040 -2,990	-59%	-$1.75M	0.1%	187
2024 Q3	$2.73M	Buy	5,030 +1,693	+51%	+$856K	0.2%	75
2024 Q2	$1.44M	Buy	+3,337	New	+$1.28M	0.12%	229
2023 Q4	–	Sell	-2,927	Closed	-$1.44M	–	1570
2023 Q3	$1.44M	Buy	+2,927	New	+$1.43M	0.25%	36
2023 Q2	–	Sell	-624	Closed	-$232K	–	1401
2023 Q1	$232K	Buy	+624	New	+$231K	0.05%	843
2022 Q3	–	Sell	-1,289	Closed	-$488K	–	1091
2022 Q2	$488K	Buy	+1,289	New	+$415K	0.2%	119
2021 Q2	–	Sell	-1,031	Closed	-$284K	–	795
2021 Q1	$284K	Buy	+1,031	New	+$326K	0.14%	297

Other funds holding ARGX

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

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

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

XTX Topco's ARGX Position: Q2 2026 in Review

XTX Topco opened a new position in argenx (ARGX) in Q2 2026: 3,670 shares worth $3.4M. The stake represents 0.04% of the portfolio and ranks #639 among its holdings. This is a return to the name: XTX Topco previously reported a position in ARGX as recently as Q4 2025.

XTX Topco first reported a position in ARGX in Q1 2021 and has held it in 10 quarters since. The position peaked at $3.61M in Q4 2025. 505 funds tracked by Wall St. Rank hold ARGX as of Q2 2026.

XTX Topco held 3,670 shares of argenx worth $3.4M as of Q2 2026.
argenx was a new XTX Topco position in Q2 2026.
argenx made up 0.04% of XTX Topco's portfolio in Q2 2026, its #639 holding.
XTX Topco first reported a position in argenx in Q1 2021 and has held it in 10 quarters since.
XTX Topco's argenx position peaked at $3.61M in Q4 2025.
505 funds tracked by Wall St. Rank held argenx as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.