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Roman Butler Fullerton & Co’s argenx ARGX Stock Holding History

Roman Butler Fullerton & Co’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 		$372K Buy
+425
New +$351K 0.09% 212
2026
Q1 		– Sell
-370
Closed -$306K – 271
2025
Q4 		$306K Hold
370
– – 0.08% 220
2025
Q3 		$304K Buy
+370
New +$244K 0.08% 205

Other funds holding ARGX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Artisan Partners
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
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Roman Butler Fullerton & Co's ARGX Position: Q2 2026 in Review

Roman Butler Fullerton & Co opened a new position in argenx (ARGX) in Q2 2026: 425 shares worth $372K. The stake represents 0.09% of the portfolio and ranks #212 among its holdings. This is a return to the name: Roman Butler Fullerton & Co previously reported a position in ARGX as recently as Q4 2025.

Roman Butler Fullerton & Co first reported a position in ARGX in Q3 2025 and has held it in 3 quarters since. 508 funds tracked by Wall St. Rank hold ARGX as of Q2 2026.

  • Roman Butler Fullerton & Co held 425 shares of argenx worth $372K as of Q2 2026.
  • argenx was a new Roman Butler Fullerton & Co position in Q2 2026.
  • argenx made up 0.09% of Roman Butler Fullerton & Co's portfolio in Q2 2026, its #212 holding.
  • Roman Butler Fullerton & Co first reported a position in argenx in Q3 2025 and has held it in 3 quarters since.
  • 508 funds tracked by Wall St. Rank held argenx as of Q2 2026.

Based on Roman Butler Fullerton & Co's 13F filing for Q2 2026, filed 6 Aug 2026.