Hudson Bay Capital Management LP

Position in GMAB — Genmab A/S

CIK 1393825 STAMFORD, CT

Position in GMAB

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

Position Value

$8,317,300

-$1,692,700 QoQ

Shares Held

310,000

-4.6% QoQ

Ownership

0.050%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 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

Hudson Bay Capital Management LP holds $537,145,014 across 151 Biotechnology names. GMAB ranks #19 (1.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BMRN	Biomarin Pharmaceutical Inc	974,776	$55,065,096
2	APLS	Apellis Pharmaceuticals, Inc.	1,190,416	$47,890,435
3	REGN	Regeneron Pharmaceuticals, Inc.	32,001	$24,725,252
4	BNTX	BioNTech SE	275,000	$24,442,000
5	IONS	Ionis Pharmaceuticals Inc	295,100	$22,159,059
6	ARGX	Argenx SE	30,000	$21,907,500
7	VRTX	Vertex Pharmaceuticals Inc / Ma	45,000	$20,094,300
8	IMCR	Immunocore Holdings plc	633,174	$19,090,196

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$8,317,300	310,000	-4.6%	Shares	Sole	2026-05-13
2025-12-31	$10,010,000	325,000	+22.6%	Shares	Sole	2026-02-13
2025-09-30	$8,127,550	265,000	-11.7%	Shares	Sole	2025-12-15
2025-06-30	$6,198,000	300,000	-1.6%	Shares	Sole	2025-08-18
2025-03-31	$5,971,900	305,000	-43.5%	Shares	Sole	2025-05-14
2024-12-31	$11,269,800	540,000	+103.8%	Shares	Sole	2025-02-14
2024-09-30	$6,460,700	265,000	0.0%	Shares	Sole	2024-11-13
2024-06-30	$6,659,450	265,000	+194.4%	Shares	Sole	2024-08-14
2024-03-31	$2,691,900	90,000	-5.3%	Shares	Sole	2024-05-15
2023-12-31	$3,024,800	95,000	+90.0%	Shares	Sole	2024-02-14
2023-09-30	$1,763,500	50,000	+66.7%	Shares	Sole	2023-12-07
2023-06-30	$1,140,300	30,000	-60.9%	Shares	Sole	2023-08-14
2022-09-30	$2,466,941	76,780	—	Shares	Sole	2022-11-14
No filing history on record for this holder in this stock.