JANE STREET GROUP, LLC

Position in ARGX — Argenx SE

CIK 1595888 NEW YORK, NY

Back to ARGX Full portfolio

Position in ARGX

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$28,069,349

+$4,114,889 QoQ

Shares Held

38,438

+34.9% QoQ

Ownership

0.062%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

24 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 Mar 31, 2026

CallValue

$5,768,975

CallShares

7,900

PutValue

$7,375,525

PutShares

10,100

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

JANE STREET GROUP, LLC holds $1,253,826,569 across 316 Biotechnology names. ARGX ranks #10 (2.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BBIO	BridgeBio Pharma, Inc.	1,757,672	$130,524,721
2	RPRX	Royalty Pharma plc	2,400,382	$115,146,324
3	TGTX	Tg Therapeutics, Inc.	2,041,669	$67,824,242
4	VRTX	Vertex Pharmaceuticals Inc / Ma	122,946	$54,900,305
5	HALO	Halozyme Therapeutics, Inc.	831,707	$53,753,223
6	EXEL	Exelixis, Inc.	1,087,030	$46,622,715
7	JAZZ	Jazz Pharmaceuticals plc	223,615	$42,274,415
8	BNTX	BioNTech SE	336,757	$29,930,962

All Filings in ARGX

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50 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$28,069,349	38,438	+280.6%	Shares	Defined	2026-05-12
2026-03-31	$7,375,525	10,100	+27.8%	Put	Defined	2026-05-12
2026-03-31	$5,768,975	7,900	-30.1%	Call	Defined	2026-05-12
2025-12-31	$9,502,735	11,300	+126.0%	Call	Defined	2026-02-12
2025-12-31	$4,204,750	5,000	-82.4%	Put	Defined	2026-02-12
2025-12-31	$23,954,460	28,485	+57.4%	Shares	Defined	2026-02-12
2025-09-30	$13,349,836	18,100	-63.7%	Put	Defined	2025-11-14
2025-09-30	$36,807,193	49,904	+90.5%	Shares	Defined	2025-11-14
2025-09-30	$19,324,072	26,200	+394.3%	Call	Defined	2025-11-14
2025-06-30	$2,921,466	5,300	-67.9%	Call	Defined	2025-08-14
2025-06-30	$9,106,153	16,520	+150.3%	Shares	Defined	2025-08-14
2025-06-30	$3,638,052	6,600	-37.7%	Put	Defined	2025-08-14
2025-03-31	$6,273,769	10,600	-62.5%	Put	Defined	2025-05-19
2025-03-31	$16,724,920	28,258	+159.2%	Shares	Defined	2025-05-19
2025-03-31	$6,451,328	10,900	-51.6%	Call	Defined	2025-05-19
2024-12-31	$13,837,500	22,500	-20.8%	Call	Defined	2025-02-14
2024-12-31	$17,466,000	28,400	+1.9%	Put	Defined	2025-02-14
2024-12-31	$17,143,125	27,875	+579.9%	Shares	Defined	2025-02-14
2024-09-30	$2,222,528	4,100	-53.5%	Call	Defined	2024-11-15
2024-09-30	$4,775,723	8,810	-75.5%	Shares	Defined	2024-11-15
2024-09-30	$19,460,672	35,900	+86.0%	Put	Defined	2024-11-15
2024-06-30	$8,302,351	19,306	-0.3%	Shares	Defined	2024-08-15
2024-03-31	$7,622,024	19,359	-25.2%	Shares	Defined	2024-05-16
2023-12-31	$9,850,853	25,894	+122.7%	Shares	Defined	2024-02-15
2023-09-30	$5,715,689	11,626	+0.2%	Shares	Defined	2023-11-15
2023-06-30	$4,523,985	11,608	+520.4%	Shares	Defined	2023-08-14
2023-03-31	$697,096	1,871	-72.5%	Shares	Defined	2023-05-16
2022-12-31	$2,573,012	6,792	-82.6%	Shares	Defined	2023-02-15
2022-09-30	$13,757,651	38,968	+41.7%	Shares	Defined	2022-11-15
2022-03-31	$8,671,025	27,500	+118.3%	Call	Defined	2022-05-17
2022-03-31	$3,972,906	12,600	+215.0%	Put	Defined	2022-05-17
2021-12-31	$1,400,760	4,000	+344.4%	Put	Defined	2022-02-15
2021-12-31	$315,171	900	-93.6%	Call	Defined	2022-02-15
2021-12-31	$4,938,028	14,101	-57.5%	Shares	Defined	2022-02-15
2021-09-30	$10,026,400	33,200	-37.4%	Call	Defined	2021-11-16
2021-09-30	$16,028,650	53,075	+539.5%	Shares	Defined	2021-11-16
2021-09-30	$2,506,600	8,300	-12.6%	Put	Defined	2021-11-16
2021-06-30	$2,860,165	9,500	-76.2%	Put	Defined	2021-08-16
2021-06-30	$12,012,693	39,900	+131.0%	Call	Defined	2021-08-16
2021-06-30	$5,200,984	17,275	+178.6%	Shares	Defined	2021-08-16
2021-03-31	$1,707,418	6,200	-81.7%	Put	Defined	2021-05-18
2021-03-31	$9,335,721	33,900	-44.9%	Call	Defined	2021-05-18
2020-12-31	$18,107,415	61,571	+69.6%	Shares	Defined	2021-02-17
2020-12-31	$10,675,467	36,300	+175.0%	Call	Defined	2021-02-17
2020-12-31	$3,881,988	13,200	-77.7%	Put	Defined	2021-02-17
2020-09-30	$15,567,436	59,300	-20.3%	Put	Defined	2020-11-17
2020-09-30	$19,531,488	74,400	+280.5%	Call	Defined	2020-11-17
2020-09-30	$5,133,053	19,553	-27.5%	Shares	Defined	2020-11-17
2020-06-30	$6,077,831	26,985	-55.8%	Shares	Defined	2020-08-17
2020-06-30	$13,739,030	61,000	—	Call	Defined	2020-08-17
No filing history on record for this holder in this stock.