Adage Capital Partners
ARGX icon

Adage Capital Partners’s argenx ARGX Stock Holding History

Adage Capital 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
Q2 		$47M Sell
50,607
-39,393
-44% -$32.5M 0.07% 295
2026
Q1 		$65.7M Buy
+90,000
New +$70.4M 0.1% 200
2025
Q3 		– Sell
-297,113
Closed -$164M – 884
2025
Q2 		$164M Buy
297,113
+158,476
+114% +$92M 0.28% 60
2025
Q1 		$82.1M Buy
138,637
+48,850
+54% +$30.8M 0.15% 135
2024
Q4 		$55.2M Sell
89,787
-79,000
-47% -$46.3M 0.1% 202
2024
Q3 		$91.5M Buy
168,787
+62,280
+58% +$31.5M 0.16% 123
2024
Q2 		$45.8M Buy
+106,507
New +$40.8M 0.08% 235
2024
Q1 		– Sell
-108,951
Closed -$41.4M – 874
2023
Q4 		$41.4M Buy
108,951
+3,000
+3% +$1.4M 0.09% 241
2023
Q3 		$52.1M Sell
105,951
-46,845
-31% -$22.9M 0.12% 184
2023
Q2 		$59.5M Sell
152,796
-183,600
-55% -$72.2M 0.13% 173
2023
Q1 		$125M Buy
336,396
+49,000
+17% +$18.1M 0.28% 88
2022
Q4 		$109M Buy
+287,396
New +$108M 0.26% 94
2021
Q1 		– Sell
-35,000
Closed -$10.3M – 957
2020
Q4 		$10.3M Buy
35,000
+10,000
+40% +$2.75M 0.02% 585
2020
Q3 		$6.56M Buy
+25,000
New +$6.01M 0.02% 589
2018
Q4 		– Sell
-1,015,981
Closed -$77.1M – 707
2018
Q3 		$77.1M Sell
1,015,981
-489,019
-32% -$43.4M 0.17% 149
2018
Q2 		$125M Buy
1,505,000
+555,500
+59% +$49.7M 0.29% 86
2018
Q1 		$76.4M Buy
949,500
+194,500
+26% +$14.7M 0.18% 151
2017
Q4 		$47.7M Buy
755,000
+605,000
+403% +$19.8M 0.11% 238
2017
Q3 		$3.39M Hold
150,000
– – 0.01% 650
2017
Q2 		$3.18M Buy
+150,000
New +$3.12M 0.01% 652

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

Adage Capital Partners's ARGX Position: Q2 2026 in Review

Adage Capital Partners reduced its argenx (ARGX) stake by 44% in Q2 2026, selling an estimated $32.5M and leaving 50,607 shares worth $47M. The position accounts for 0.07% of the portfolio, ranked #295.

Adage Capital Partners first reported a position in ARGX in Q2 2017 and has held it in 20 quarters since. The position peaked at $164M in Q2 2025. 506 funds tracked by Wall St. Rank hold ARGX as of Q2 2026.

  • Adage Capital Partners held 50,607 shares of argenx worth $47M as of Q2 2026.
  • Adage Capital Partners sold 39,393 argenx shares in Q2 2026, an estimated $32.5M.
  • argenx made up 0.07% of Adage Capital Partners's portfolio in Q2 2026, its #295 holding.
  • Adage Capital Partners first reported a position in argenx in Q2 2017 and has held it in 20 quarters since.
  • Adage Capital Partners's argenx position peaked at $164M in Q2 2025.
  • 506 funds tracked by Wall St. Rank held argenx as of Q2 2026.

Based on Adage Capital Partners's 13F filing for Q2 2026, filed 14 Aug 2026.