Simplex Trading
ARGX icon

Simplex Trading’s argenx ARGX Stock Holding History

Simplex Trading’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 		$1.57M Sell
1,696
-75
-4% -$61.9K ﹤0.01% 2268
2026
Q1 		$1.29M Buy
1,771
+1,021
+136% +$799K ﹤0.01% 2233
2025
Q4 		$631K Sell
750
-49
-6% -$41.9K ﹤0.01% 3071
2025
Q3 		$589K Sell
799
-339
-30% -$224K ﹤0.01% 3620
2025
Q2 		$627K Buy
+1,138
New +$660K ﹤0.01% 3267
2024
Q4 		– Sell
-574
Closed -$336K – 8449
2024
Q3 		$311K Buy
+574
New +$290K ﹤0.01% 4088
2024
Q2 		– Sell
-3,520
Closed -$1.35M – 8718
2024
Q1 		$1.39M Sell
3,520
-926
-21% -$359K ﹤0.01% 2785
2023
Q4 		$1.69M Sell
4,446
-352
-7% -$164K ﹤0.01% 2500
2023
Q3 		$2.36M Buy
+4,798
New +$2.35M ﹤0.01% 1932
2023
Q2 		– Sell
-7,239
Closed -$2.85M – 8904
2023
Q1 		$2.7M Buy
+7,239
New +$2.68M ﹤0.01% 1702
2021
Q4 		– Sell
-367
Closed -$112K – 10417
2021
Q3 		$111K Hold
367
– – ﹤0.01% 6464
2021
Q2 		$110K Buy
+367
New +$104K ﹤0.01% 6590
2020
Q1 		– Sell
-4,432
Closed -$649K – 7544
2019
Q4 		$711K Buy
4,432
+2,828
+176% +$382K ﹤0.01% 2398
2019
Q3 		$182K Buy
+1,604
New +$217K ﹤0.01% 3655
2019
Q2 		– Sell
-100
Closed -$12K – 7045
2019
Q1 		$12K Sell
100
-793
-89% -$93.2K ﹤0.01% 6029
2018
Q4 		$85K Buy
+893
New +$79.3K ﹤0.01% 3987

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

Simplex Trading's ARGX Position: Q2 2026 in Review

Simplex Trading reduced its argenx (ARGX) stake by 4.2% in Q2 2026, selling an estimated $61.9K and leaving 1,696 shares worth $1.57M. The position accounts for ﹤0.01% of the portfolio, ranked #2268.

Simplex Trading first reported a position in ARGX in Q4 2018 and has held it in 16 quarters since. The position peaked at $2.7M in Q1 2023. 508 funds tracked by Wall St. Rank hold ARGX as of Q2 2026.

  • Simplex Trading held 1,696 shares of argenx worth $1.57M as of Q2 2026.
  • Simplex Trading sold 75 argenx shares in Q2 2026, an estimated $61.9K.
  • argenx made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #2268 holding.
  • Simplex Trading first reported a position in argenx in Q4 2018 and has held it in 16 quarters since.
  • Simplex Trading's argenx position peaked at $2.7M in Q1 2023.
  • 508 funds tracked by Wall St. Rank held argenx as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.