GROUP ONE TRADING LLC

Position in LEGN — Legend Biotech Corp

CIK 932540 CHICAGO, IL

Position in LEGN

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

Position Value

$920,961

+$51,883 QoQ

Shares Held

50,910

+27.4% QoQ

Ownership

0.026%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2022

13 quarters on record

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

Healthcare · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $126,503,470 across 207 Biotechnology names. LEGN ranks #29 (0.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CYTK	Cytokinetics Inc	363,997	$23,991,042
2	BNTX	BioNTech SE	103,948	$9,238,898
3	VKTX	Viking Therapeutics, Inc.	211,817	$6,892,525
4	AGIO	Agios Pharmaceuticals, Inc.	173,279	$5,862,028
5	CRSP	CRISPR Therapeutics AG	96,001	$4,566,767
6	VRTX	Vertex Pharmaceuticals Inc / Ma	9,357	$4,178,274
7	REGN	Regeneron Pharmaceuticals, Inc.	5,399	$4,171,483
8	ABVX	Abivax S.A.	35,767	$3,982,655

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$920,961	50,910	+27.4%	Shares	Sole	2026-05-13
2025-12-31	$869,078	39,976	+3.3%	Shares	Sole	2026-02-12
2025-09-30	$1,262,267	38,708	+209.0%	Shares	Sole	2025-11-12
2025-06-30	$444,583	12,527	-69.8%	Shares	Sole	2025-08-14
2025-03-31	$1,405,787	41,432	-8.0%	Shares	Sole	2025-05-14
2024-12-31	$1,465,308	45,031	+4.4%	Shares	Sole	2025-05-14
2024-09-30	$2,102,212	43,140	+52.9%	Shares	Sole	2024-11-14
2024-06-30	$1,249,642	28,215	+1002.1%	Shares	Sole	2024-08-14
2023-12-31	$154,035	2,560	-87.3%	Shares	Sole	2024-02-14
2022-12-31	$1,008,683	20,206	+120.2%	Shares	Sole	2023-02-09
2022-09-30	$374,340	9,175	+13594.0%	Shares	Sole	2022-11-09
2022-06-30	$3,685	67	-98.3%	Shares	Sole	2022-08-11
2022-03-31	$143,797	3,957	—	Shares	Sole	2022-05-12
No filing history on record for this holder in this stock.