Sierra Ocean’s argenx ARGX Stock Holding History

Sierra Ocean’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 Q3	–	Sell	-16	Closed	-$8.82K	–	118
2025 Q2	$8.82K	Sell	16 -1	-6%	-$580	0.01%	473
2025 Q1	$10.1K	Buy	17 +2	+13%	+$1.26K	0.01%	435
2024 Q4	$9.22K	Buy	+15	New	+$8.79K	0.01%	446

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

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

Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 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

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

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

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

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

Sierra Ocean's ARGX Position: Q3 2025 in Review

Sierra Ocean sold out of argenx (ARGX) in Q3 2025, closing a stake of 16 shares — an estimated $8.82K sold.

Sierra Ocean first reported a position in ARGX in Q4 2024 and held it in 3 quarters. The position peaked at $10.1K in Q1 2025. 469 funds tracked by Wall St. Rank hold ARGX as of Q3 2025.

Sierra Ocean reported no remaining argenx position as of Q3 2025 after selling out during the quarter.
Sierra Ocean sold 16 argenx shares in Q3 2025, an estimated $8.82K.
Sierra Ocean first reported a position in argenx in Q4 2024 and held it in 3 quarters.
Sierra Ocean's argenx position peaked at $10.1K in Q1 2025.
469 funds tracked by Wall St. Rank held argenx as of Q3 2025.

Based on Sierra Ocean's 13F filing for Q3 2025, filed 7 Nov 2025.