Lord, Abbett & Co. LLC

SEC CIK: 0000728100
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

ARGX holding history

Argenx SE in every 13F filed by Lord, Abbett & Co. LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ARGX overview All 13F holders of ARGX Full Q2 2026 holdings

Shares (Q2 2026): 108,253
Value: $100.4M
% of portfolio: 0.3%
Quarters held: 19; Since Q1 2021

Holdings of ARGX by Lord, Abbett & Co. LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	108,253	$100.4M	0.3%	−43,830−28.8%	Reduced	Holders
Q1 2026	152,083	$111.1M	0.4%	−51,781−25.4%	Reduced	Holders
Q4 2025	203,864	$171.4M	0.5%	+6,987+3.5%	Added	Holders
Q3 2025	196,877	$145.2M	0.4%	+95,798+94.8%	Added	Holders
Q2 2025	101,079	$55.7M	0.2%	−173,621−63.2%	Reduced	Holders
Q1 2025	274,700	$162.6M	0.6%	+68,498+33.2%	Added	Holders
Q4 2024	206,202	$126.8M	0.4%	+43,239+26.5%	Added	Holders
Q3 2024	162,963	$88.3M	0.3%	+162,963	New	Holders
Q4 2023	0	$0	0.0%	−316,380−100.0%	Sold out	Holders
Q3 2023	316,380	$155.5M	0.6%	+137,016+76.4%	Added	Holders
Q2 2023	179,364	$69.9M	0.2%	+47,671+36.2%	Added	Holders
Q1 2023	131,693	$49.1M	0.2%	−13,292−9.2%	Reduced	Holders
Q4 2022	144,985	$54.9M	0.2%	−230,850−61.4%	Reduced	Holders
Q3 2022	375,835	$132.7M	0.5%	+83,084+28.4%	Added	Holders
Q2 2022	292,751	$110.9M	0.4%	+265,768+984.9%	Added	Holders
Q1 2022	26,983	$8.51M	<0.1%	+1,848+7.4%	Added	Holders
Q4 2021	25,135	$8.80M	<0.1%	+2,475+10.9%	Added	Holders
Q3 2021	22,660	$6.84M	<0.1%	+1,106+5.1%	Added	Holders
Q2 2021	21,554	$6.49M	<0.1%	+4,362+25.4%	Added	Holders
Q1 2021	17,192	$4.74M	<0.1%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.