Avidity Partners Management’s argenx ARGX Stock Holding History

Avidity Partners 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	-38,200	Closed	-$20.7M	–	65
2024 Q3	$20.7M	Sell	38,200 -22,300	-37%	-$11.3M	1.06%	37
2024 Q2	$26M	Buy	+60,500	New	+$23.2M	1.11%	39
2024 Q1	–	Sell	-31,000	Closed	-$11.8M	–	94
2023 Q4	$11.8M	Sell	31,000 -49,600	-62%	-$23.1M	0.43%	58
2023 Q3	$39.6M	Sell	80,600 -103,700	-56%	-$50.7M	1.6%	26
2023 Q2	$71.8M	Sell	184,300 -96,400	-34%	-$37.9M	2.51%	6
2023 Q1	$105M	Sell	280,700 -344,300	-55%	-$127M	3.47%	4
2022 Q4	$237M	Buy	625,000 +133,200	+27%	+$49.8M	5.13%	2
2022 Q3	$174M	Sell	491,800 -80,700	-14%	-$29.9M	3.53%	6
2022 Q2	$217M	Buy	572,500 +396,500	+225%	+$128M	4.98%	3
2022 Q1	$55.5M	Buy	+176,000	New	+$51.2M	1.16%	29
2021 Q2	–	Sell	-20,000	Closed	-$5.51M	–	116
2021 Q1	$5.51M	Buy	+20,000	New	+$6.32M	0.15%	80

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

Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return

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

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

ACA

Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return

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

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

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

ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

Avidity Partners Management's ARGX Position: Q4 2024 in Review

Avidity Partners Management sold out of argenx (ARGX) in Q4 2024, closing a stake of 38,200 shares — an estimated $20.7M sold.

Avidity Partners Management first reported a position in ARGX in Q1 2021 and held it in 11 quarters. The position peaked at $237M in Q4 2022. 397 funds tracked by Wall St. Rank hold ARGX as of Q4 2024.

Avidity Partners Management reported no remaining argenx position as of Q4 2024 after selling out during the quarter.
Avidity Partners Management sold 38,200 argenx shares in Q4 2024, an estimated $20.7M.
Avidity Partners Management first reported a position in argenx in Q1 2021 and held it in 11 quarters.
Avidity Partners Management's argenx position peaked at $237M in Q4 2022.
397 funds tracked by Wall St. Rank held argenx as of Q4 2024.

Based on Avidity Partners Management's 13F filing for Q4 2024, filed 14 Feb 2025.