Acadian Asset Management’s argenx ARGX Stock Holding History

Acadian Asset 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
2026 Q2	$399K	Buy	+431	New	+$356K	﹤0.01%	1500
2026 Q1	–	Sell	-117,887	Closed	-$99.1M	–	2015
2025 Q4	$99.1M	Buy	117,887 +55,083	+88%	+$47.1M	0.16%	128
2025 Q3	$46.3M	Buy	+62,804	New	+$41.4M	0.08%	207
2023 Q4	–	Sell	-806	Closed	-$396K	–	1667
2023 Q3	$396K	Buy	806 +242	+43%	+$118K	﹤0.01%	1062
2023 Q2	$219K	Buy	+564	New	+$222K	﹤0.01%	1255
2023 Q1	–	Sell	-936	Closed	-$354K	–	1730
2022 Q4	$354K	Sell	936 -394	-30%	-$147K	﹤0.01%	1135
2022 Q3	$469K	Buy	+1,330	New	+$493K	﹤0.01%	1006
2019 Q4	–	Sell	-3	Closed	–	–	1864
2019 Q3	$0	Buy	+3	New	+$406	﹤0.01%	1870
2018 Q3	–	Sell	-87	Closed	-$7K	–	1655
2018 Q2	$7K	Sell	87 -1,847	-96%	-$165K	﹤0.01%	1602
2018 Q1	$156K	Buy	+1,934	New	+$146K	﹤0.01%	1121

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

Acadian Asset Management's ARGX Position: Q2 2026 in Review

Acadian Asset Management opened a new position in argenx (ARGX) in Q2 2026: 431 shares worth $399K. The stake represents ﹤0.01% of the portfolio and ranks #1500 among its holdings. This is a return to the name: Acadian Asset Management previously reported a position in ARGX as recently as Q4 2025.

Acadian Asset Management first reported a position in ARGX in Q1 2018 and has held it in 10 quarters since. The position peaked at $99.1M in Q4 2025. 508 funds tracked by Wall St. Rank hold ARGX as of Q2 2026.

Acadian Asset Management held 431 shares of argenx worth $399K as of Q2 2026.
argenx was a new Acadian Asset Management position in Q2 2026.
argenx made up ﹤0.01% of Acadian Asset Management's portfolio in Q2 2026, its #1500 holding.
Acadian Asset Management first reported a position in argenx in Q1 2018 and has held it in 10 quarters since.
Acadian Asset Management's argenx position peaked at $99.1M in Q4 2025.
508 funds tracked by Wall St. Rank held argenx as of Q2 2026.

Based on Acadian Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.