Lord, Abbett & Co
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Lord, Abbett & Co’s argenx ARGX Stock Holding History

Lord, Abbett & 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
Q1 		$111M Sell
152,083
-51,781
-25% -$40.5M 0.36% 75
2025
Q4 		$171M Buy
203,864
+6,987
+4% +$5.98M 0.53% 48
2025
Q3 		$145M Buy
196,877
+95,798
+95% +$63.2M 0.43% 65
2025
Q2 		$55.7M Sell
101,079
-173,621
-63% -$101M 0.18% 145
2025
Q1 		$163M Buy
274,700
+68,498
+33% +$43.2M 0.58% 43
2024
Q4 		$127M Buy
206,202
+43,239
+27% +$25.3M 0.4% 71
2024
Q3 		$88.3M Buy
+162,963
New +$82.4M 0.28% 103
2023
Q4 		– Sell
-316,380
Closed -$156M – 520
2023
Q3 		$156M Buy
316,380
+137,016
+76% +$67M 0.58% 34
2023
Q2 		$69.9M Buy
179,364
+47,671
+36% +$18.7M 0.24% 128
2023
Q1 		$49.1M Sell
131,693
-13,292
-9% -$4.92M 0.18% 183
2022
Q4 		$54.9M Sell
144,985
-230,850
-61% -$86.4M 0.2% 145
2022
Q3 		$133M Buy
375,835
+83,084
+28% +$30.8M 0.48% 47
2022
Q2 		$111M Buy
292,751
+265,768
+985% +$85.6M 0.39% 59
2022
Q1 		$8.51M Buy
26,983
+1,848
+7% +$537K 0.02% 483
2021
Q4 		$8.8M Buy
25,135
+2,475
+11% +$753K 0.02% 507
2021
Q3 		$6.84M Buy
22,660
+1,106
+5% +$350K 0.02% 564
2021
Q2 		$6.49M Buy
21,554
+4,362
+25% +$1.24M 0.02% 590
2021
Q1 		$4.74M Sell
17,192
-205,201
-92% -$64.9M 0.01% 593
2020
Q4 		$65.4M Buy
222,393
+363
+0.2% +$99.8K 0.17% 191
2020
Q3 		$58.3M Sell
222,030
-62,957
-22% -$15.1M 0.19% 168
2020
Q2 		$64.2M Sell
284,987
-51,040
-15% -$9.06M 0.22% 133
2020
Q1 		$44.3M Buy
336,027
+135,008
+67% +$19.8M 0.2% 160
2019
Q4 		$32.3M Sell
201,019
-22,122
-10% -$2.99M 0.11% 292
2019
Q3 		$25.4M Sell
223,141
-475,026
-68% -$64.2M 0.09% 364
2019
Q2 		$98.8M Buy
698,167
+51,290
+8% +$6.51M 0.32% 70
2019
Q1 		$80.8M Buy
646,877
+462,607
+251% +$54.4M 0.27% 100
2018
Q4 		$17.7M Buy
+184,270
New +$16.4M 0.06% 414

Other funds holding ARGX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Lord, Abbett & Co's ARGX Position: Q1 2026 in Review

Lord, Abbett & Co reduced its argenx (ARGX) stake by 25% in Q1 2026, selling an estimated $40.5M and leaving 152,083 shares worth $111M. The position accounts for 0.36% of the portfolio, ranked #75.

Lord, Abbett & Co first reported a position in ARGX in Q4 2018 and has held it in 27 quarters since. The position peaked at $171M in Q4 2025. 475 funds tracked by Wall St. Rank hold ARGX as of Q1 2026.

  • Lord, Abbett & Co held 152,083 shares of argenx worth $111M as of Q1 2026.
  • Lord, Abbett & Co sold 51,781 argenx shares in Q1 2026, an estimated $40.5M.
  • argenx made up 0.36% of Lord, Abbett & Co's portfolio in Q1 2026, its #75 holding.
  • Lord, Abbett & Co first reported a position in argenx in Q4 2018 and has held it in 27 quarters since.
  • Lord, Abbett & Co's argenx position peaked at $171M in Q4 2025.
  • 475 funds tracked by Wall St. Rank held argenx as of Q1 2026.

Based on Lord, Abbett & Co's 13F filing for Q1 2026, filed 14 May 2026.