JY
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Jeff Yass’s argenx ARGX Stock Holding History

Jeff Yass’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 		$440K Sell
474
-13,918
-97% -$11.5M ﹤0.01% 10205
2026
Q1 		$10.5M Sell
14,392
-9,567
-40% -$7.49M ﹤0.01% 3042
2025
Q4 		$20.1M Buy
+23,959
New +$20.5M ﹤0.01% 2201
2025
Q3 		– Sell
-23,790
Closed -$15.7M – 12319
2025
Q2 		$13.1M Buy
23,790
+21,917
+1,170% +$12.7M ﹤0.01% 2502
2025
Q1 		$1.11M Buy
1,873
+1,207
+181% +$762K ﹤0.01% 6990
2024
Q4 		$410K Sell
666
-11,111
-94% -$6.51M ﹤0.01% 9155
2024
Q3 		$6.38M Sell
11,777
-7,670
-39% -$3.88M ﹤0.01% 3209
2024
Q2 		$8.36M Buy
19,447
+18,228
+1,495% +$6.98M ﹤0.01% 2720
2024
Q1 		$480K Sell
1,219
-15,384
-93% -$5.96M ﹤0.01% 8613
2023
Q4 		$6.32M Buy
+16,603
New +$7.74M ﹤0.01% 3332
2023
Q2 		– Sell
-6,156
Closed -$2.42M – 12006
2023
Q1 		$2.29M Buy
6,156
+1,549
+34% +$573K ﹤0.01% 4851
2022
Q4 		$1.75M Buy
+4,607
New +$1.72M ﹤0.01% 4974
2022
Q1 		– Sell
-7,529
Closed -$2.19M – 12926
2021
Q4 		$2.64M Buy
+7,529
New +$2.29M ﹤0.01% 4881
2021
Q1 		– Sell
-5,237
Closed -$1.66M – 12199
2020
Q4 		$1.54M Buy
+5,237
New +$1.44M ﹤0.01% 5687
2020
Q3 		– Sell
-1,837
Closed -$442K – 10505
2020
Q2 		$414K Sell
1,837
-6,580
-78% -$1.17M ﹤0.01% 7764
2020
Q1 		$1.11M Buy
+8,417
New +$1.23M ﹤0.01% 5155
2019
Q4 		– Sell
-7,269
Closed -$983K – 9665
2019
Q3 		$828K Sell
7,269
-11,295
-61% -$1.53M ﹤0.01% 6114
2019
Q2 		$2.63M Buy
18,564
+13,385
+258% +$1.7M ﹤0.01% 3674
2019
Q1 		$647K Buy
5,179
+1,626
+46% +$191K ﹤0.01% 5809
2018
Q4 		$341K Sell
3,553
-8,409
-70% -$747K ﹤0.01% 6761
2018
Q3 		$907K Buy
+11,962
New +$1.06M ﹤0.01% 5416

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

Jeff Yass's ARGX Position: Q2 2026 in Review

Jeff Yass reduced its argenx (ARGX) stake by 97% in Q2 2026, selling an estimated $11.5M and leaving 474 shares worth $440K. The position accounts for ﹤0.01% of the portfolio, ranked #10205.

Jeff Yass first reported a position in ARGX in Q3 2018 and has held it in 21 quarters since. The position peaked at $20.1M in Q4 2025. 505 funds tracked by Wall St. Rank hold ARGX as of Q2 2026.

  • Jeff Yass held 474 shares of argenx worth $440K as of Q2 2026.
  • Jeff Yass sold 13,918 argenx shares in Q2 2026, an estimated $11.5M.
  • argenx made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #10205 holding.
  • Jeff Yass first reported a position in argenx in Q3 2018 and has held it in 21 quarters since.
  • Jeff Yass's argenx position peaked at $20.1M in Q4 2025.
  • 505 funds tracked by Wall St. Rank held argenx as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.