Mariner
ARGX icon

Mariner’s argenx ARGX Stock Holding History

Mariner’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 		$3.1M Sell
3,346
-272
-8% -$224K ﹤0.01% 1254
2026
Q1 		$2.64M Sell
3,618
-136
-4% -$106K ﹤0.01% 1381
2025
Q4 		$3.16M Buy
3,754
+371
+11% +$318K ﹤0.01% 1238
2025
Q3 		$2.5M Buy
3,383
+89
+3% +$58.7K ﹤0.01% 1297
2025
Q2 		$1.82M Sell
3,294
-323
-9% -$187K ﹤0.01% 1400
2025
Q1 		$2.14M Sell
3,617
-94
-3% -$59.3K ﹤0.01% 1200
2024
Q4 		$2.28M Buy
3,711
+509
+16% +$298K ﹤0.01% 1142
2024
Q3 		$1.73M Buy
3,202
+428
+15% +$216K ﹤0.01% 1268
2024
Q2 		$1.19M Buy
2,774
+105
+4% +$40.2K ﹤0.01% 1393
2024
Q1 		$1.05M Sell
2,669
-55
-2% -$21.3K ﹤0.01% 1465
2023
Q4 		$1.04M Sell
2,724
-40
-1% -$18.6K ﹤0.01% 1408
2023
Q3 		$1.36M Buy
2,764
+733
+36% +$359K ﹤0.01% 1166
2023
Q2 		$790K Sell
2,031
-479
-19% -$188K ﹤0.01% 1447
2023
Q1 		$934K Sell
2,510
-4
-0.2% -$1.48K ﹤0.01% 1301
2022
Q4 		$952K Sell
2,514
-212
-8% -$79.3K ﹤0.01% 1270
2022
Q3 		$962K Buy
+2,726
New +$1.01M ﹤0.01% 1072

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

Mariner's ARGX Position: Q2 2026 in Review

Mariner reduced its argenx (ARGX) stake by 7.5% in Q2 2026, selling an estimated $224K and leaving 3,346 shares worth $3.1M. The position accounts for ﹤0.01% of the portfolio, ranked #1254.

Mariner first reported a position in ARGX in Q3 2022 and has held it in 16 quarters since. The position peaked at $3.16M in Q4 2025. 508 funds tracked by Wall St. Rank hold ARGX as of Q2 2026.

  • Mariner held 3,346 shares of argenx worth $3.1M as of Q2 2026.
  • Mariner sold 272 argenx shares in Q2 2026, an estimated $224K.
  • argenx made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1254 holding.
  • Mariner first reported a position in argenx in Q3 2022 and has held it in 16 quarters since.
  • Mariner's argenx position peaked at $3.16M in Q4 2025.
  • 508 funds tracked by Wall St. Rank held argenx as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.