Clearbridge Investments, LLC

Position in ARGX — Argenx SE

CIK 1348883 NEW YORK, NY

Position in ARGX

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$168,947,719

-$263,102,116 QoQ

Shares Held

231,356

-55.0% QoQ

Ownership

0.372%

of shares outstanding

% of Portfolio

0.15%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2021

21 quarters on record

Voting authority Sole 89.38691886097617.ToString("F0")% Shared 0.ToString("F0")% None 10.613081139023842.ToString("F0")%

Healthcare · as of Mar 31, 2026

Clearbridge Investments, LLC holds $2,718,012,251 across 26 Biotechnology names. ARGX ranks #3 (6.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	2,700,975	$1,206,093,376
2	ALNY	Alnylam Pharmaceuticals, Inc.	1,356,036	$448,671,631
3	ARGX	Argenx SE This page	231,356	$168,947,719
4	TGTX	Tg Therapeutics, Inc.	3,210,930	$106,667,094
5	INSM	INSMED Inc	643,435	$105,214,491
6	BBIO	BridgeBio Pharma, Inc.	951,200	$70,636,112
7	PTGX	Protagonist Therapeutics, Inc	621,820	$65,539,828
8	MIRM	Mirum Pharmaceuticals, Inc.	671,870	$62,067,350

21 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$168,947,719	231,356	-55.0%	Shares	Sole	2026-05-13
2025-12-31	$432,049,835	513,764	-32.1%	Shares	Sole	2026-02-11
2025-09-30	$558,231,136	756,862	-2.1%	Shares	Sole	2025-11-13
2025-06-30	$426,019,196	772,866	+16.3%	Shares	Sole	2025-08-12
2025-03-31	$393,216,166	664,368	+5.5%	Shares	Sole	2025-05-13
2024-12-31	$387,344,220	629,828	+6.8%	Shares	Sole	2025-02-12
2024-09-30	$319,555,075	589,498	-4.5%	Shares	Sole	2024-11-12
2024-06-30	$265,535,078	617,466	+3.6%	Shares	Sole	2024-08-27
2024-03-31	$234,766,180	596,277	+36.5%	Shares	Sole	2024-05-13
2023-12-31	$166,170,682	436,797	+26.8%	Shares	Sole	2024-02-09
2023-09-30	$169,299,673	344,364	+103.2%	Shares	Sole	2023-11-13
2023-06-30	$66,047,543	169,470	+27.8%	Shares	Sole	2023-08-11
2023-03-31	$49,420,501	132,644	-6.7%	Shares	Sole	2023-05-12
2022-12-31	$53,865,458	142,189	-13.0%	Shares	Sole	2023-02-10
2022-09-30	$57,730,382	163,519	-0.9%	Shares	Sole	2022-11-14
2022-06-30	$62,547,783	165,086	-26.5%	Shares	Sole	2022-08-11
2022-03-31	$70,788,356	224,504	+0.2%	Shares	Sole	2022-05-13
2021-12-31	$78,433,805	223,975	-21.0%	Shares	Sole	2022-02-11
2021-09-30	$85,582,874	283,387	+14.4%	Shares	Sole	2021-11-12
2021-06-30	$74,574,737	247,699	+32.3%	Shares	Sole	2021-08-13
2021-03-31	$51,547,500	187,180	—	Shares	Sole	2021-05-13
No filing history on record for this holder in this stock.