MILLENNIUM MANAGEMENT LLC

Position in ARGX — Argenx SE

CIK 1273087 NEW YORK, NY

Back to ARGX Full portfolio

Position in ARGX

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$52,844,541

+$2,002,386 QoQ

Shares Held

72,365

+19.7% QoQ

Ownership

0.116%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ARGX Over Time

Shares Held

Position Value (USD)

Derivatives in ARGX

reported options exposure · as of Sep 30, 2024

CallValue

CallShares

PutValue

$8,293,824

PutShares

15,300

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $4,565,450,068 across 341 Biotechnology names. ARGX ranks #15 (1.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	JAZZ	Jazz Pharmaceuticals plc	1,262,511	$238,677,704
2	INSM	INSMED Inc	1,157,786	$189,321,166
3	BMRN	Biomarin Pharmaceutical Inc	3,010,308	$170,052,298
4	TERN	Terns Pharmaceuticals, Inc.	3,011,558	$158,769,337
5	ALNY	Alnylam Pharmaceuticals, Inc.	447,887	$148,192,371
6	FOLD	AMICUS THERAPEUTICS, INC.	7,908,459	$114,356,317
7	ARDX	Ardelyx, Inc.	17,842,370	$106,875,796
8	BLTE	Belite Bio, Inc	570,088	$90,894,830

All Filings in ARGX

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38 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$52,844,541	72,365	+19.7%	Shares	Sole	2026-05-15
2025-12-31	$50,842,155	60,458	-82.6%	Shares	Sole	2026-02-17
2025-09-30	$256,315,376	347,518	-19.2%	Shares	Sole	2025-11-14
2025-06-30	$236,938,609	429,844	+60.0%	Shares	Sole	2025-08-14
2025-03-31	$158,977,306	268,604	+316.9%	Shares	Sole	2025-05-15
2024-12-31	$39,620,760	64,424	+321.1%	Shares	Sole	2025-02-14
2024-09-30	$8,293,824	15,300	-86.1%	Put	Sole	2024-11-14
2024-09-30	$59,498,700	109,760	+41.2%	Shares	Sole	2024-11-14
2024-06-30	$33,438,620	77,757	+74.0%	Shares	Sole	2024-08-14
2024-06-30	$19,222,788	44,700	+82.4%	Put	Sole	2024-08-14
2024-03-31	$9,646,140	24,500	-81.1%	Put	Sole	2024-05-15
2024-03-31	$51,050,522	129,662	+18423.1%	Shares	Sole	2024-05-15
2024-03-31	$275,604	700	-99.5%	Call	Sole	2024-05-15
2023-12-31	$56,455,812	148,400	+1384.0%	Call	Sole	2024-02-14
2023-12-31	$3,804,300	10,000	-97.1%	Put	Sole	2024-02-14
2023-12-31	$131,412,315	345,431	+24.1%	Shares	Sole	2024-02-14
2023-09-30	$136,831,444	278,322	+642.2%	Shares	Sole	2023-11-14
2023-06-30	$14,614,875	37,500	-81.8%	Put	Sole	2023-08-14
2023-06-30	$80,242,678	205,893	+12.9%	Shares	Sole	2023-08-14
2023-03-31	$67,948,159	182,372	+1760.9%	Shares	Sole	2023-05-15
2022-12-31	$3,712,534	9,800	-90.1%	Put	Sole	2023-02-14
2022-12-31	$37,685,250	99,478	+101.0%	Shares	Sole	2023-02-14
2022-12-31	$18,752,085	49,500	-52.0%	Call	Sole	2023-02-14
2022-09-30	$36,426,992	103,178	+38.7%	Shares	Sole	2022-11-14
2022-06-30	$28,175,411	74,365	+230.5%	Shares	Sole	2022-08-15
2022-06-30	$8,524,800	22,500	-71.0%	Put	Sole	2022-08-15
2022-03-31	$24,433,056	77,489	+1.0%	Shares	Sole	2022-05-16
2021-12-31	$26,863,775	76,712	+373.4%	Shares	Sole	2022-02-14
2021-09-30	$4,894,212	16,206	-19.0%	Shares	Sole	2021-11-15
2021-09-30	$6,040,000	20,000	+6.5%	Call	Sole	2021-11-15
2021-06-30	$5,654,395	18,781	-0.2%	Shares	Sole	2021-08-16
2021-03-31	$5,180,085	18,810	-46.3%	Shares	Sole	2021-05-17
2020-12-31	$10,293,150	35,000	+790.8%	Call	Sole	2021-02-16
2020-12-31	$1,155,479	3,929	+31.0%	Shares	Sole	2021-02-16
2020-09-30	$787,560	3,000	-94.3%	Call	Sole	2020-11-16
2020-06-30	$11,895,972	52,817	+43.4%	Shares	Sole	2020-08-14
2020-03-31	$4,852,011	36,833	+42.2%	Shares	Sole	2020-05-14
2020-03-31	$3,411,807	25,900	—	Call	Sole	2020-05-14
No filing history on record for this holder in this stock.