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SIH Partners’s argenx ARGX Stock Holding History

SIH 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
2026
Q1 		$730K Sell
1,000
-1,500
-60% -$1.17M 0.01% 195
2025
Q4 		$2.1M Sell
2,500
-10,600
-81% -$9.07M 0.04% 106
2025
Q3 		$9.66M Buy
+13,100
New +$8.64M 0.27% 41

Other funds holding ARGX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

SIH Partners's ARGX Position: Q1 2026 in Review

SIH Partners opened a new position in argenx (ARGX) in Q1 2026: 1,418 shares worth $1.04M. The stake represents 0.01% of the portfolio and ranks #176 among its holdings. This is a return to the name: SIH Partners previously reported a position in ARGX as recently as Q3 2025.

SIH Partners first reported a position in ARGX in Q1 2025 and has held it in 4 quarters since. The position peaked at $6.33M in Q2 2025. 475 funds tracked by Wall St. Rank hold ARGX as of Q1 2026.

  • SIH Partners held 1,418 shares of argenx worth $1.04M as of Q1 2026.
  • argenx was a new SIH Partners position in Q1 2026.
  • argenx made up 0.01% of SIH Partners's portfolio in Q1 2026, its #176 holding.
  • SIH Partners first reported a position in argenx in Q1 2025 and has held it in 4 quarters since.
  • SIH Partners's argenx position peaked at $6.33M in Q2 2025.
  • 475 funds tracked by Wall St. Rank held argenx as of Q1 2026.

Based on SIH Partners's 13F filing for Q1 2026, filed 15 May 2026.