BBR Partners’s argenx ARGX Stock Holding History

BBR Partners’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	-290	Closed	-$214K	–	269
2025 Q3	$214K	Buy	+290	New	+$191K	0.01%	247

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

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

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

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 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

BBR Partners's ARGX Position: Q4 2025 in Review

BBR Partners sold out of argenx (ARGX) in Q4 2025, closing a stake of 290 shares — an estimated $214K sold.

BBR Partners first reported a position in ARGX in Q3 2025 and held it in 1 quarter. The position peaked at $214K in Q3 2025. 508 funds tracked by Wall St. Rank hold ARGX as of Q4 2025.

BBR Partners reported no remaining argenx position as of Q4 2025 after selling out during the quarter.
BBR Partners sold 290 argenx shares in Q4 2025, an estimated $214K.
BBR Partners first reported a position in argenx in Q3 2025 and held it in 1 quarter.
BBR Partners's argenx position peaked at $214K in Q3 2025.
508 funds tracked by Wall St. Rank held argenx as of Q4 2025.

Based on BBR Partners's 13F filing for Q4 2025, filed 11 Feb 2026.