Alyeska Investment Group, L.P.

Position in ABOS — Acumen Pharmaceuticals, Inc.

CIK 1453072 CHICAGO, IL

Position in ABOS

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

Position Value

$5,793,219

+$3,810,657 QoQ

Shares Held

2,454,754

+161.3% QoQ

Ownership

3.40%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

of 84 holders

Holding Since

Sep 2023

11 quarters on record

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

Healthcare · as of Mar 31, 2026

Alyeska Investment Group, L.P. holds $1,219,709,732 across 81 Biotechnology names. ABOS ranks #39 (0.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MRNA	Moderna, Inc.	4,051,185	$205,800,198
2	RVMD	Revolution Medicines, Inc.	1,885,821	$183,396,092
3	JAZZ	Jazz Pharmaceuticals plc	411,015	$77,702,385
4	XENE	Xenon Pharmaceuticals Inc.	1,299,469	$75,564,122
5	PTGX	Protagonist Therapeutics, Inc	593,197	$62,522,963
6	DNLI	Denali Therapeutics Inc.	1,941,123	$37,269,561
7	IONS	Ionis Pharmaceuticals Inc	473,150	$35,528,833
8	TECH	BIO-TECHNE Corp	659,049	$34,441,900

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$5,793,219	2,454,754	+161.3%	Shares	Sole	2026-05-15
2025-12-31	$1,982,562	939,603	0.0%	Shares	Sole	2026-02-13
2025-09-30	$1,606,721	939,603	0.0%	Shares	Sole	2025-11-17
2025-06-30	$1,089,939	939,603	0.0%	Shares	Sole	2025-08-14
2025-03-31	$1,033,563	939,603	0.0%	Shares	Sole	2025-05-15
2024-12-31	$1,616,117	939,603	0.0%	Shares	Sole	2025-02-14
2024-09-30	$2,330,215	939,603	0.0%	Shares	Sole	2024-11-14
2024-06-30	$2,273,839	939,603	0.0%	Shares	Sole	2024-08-14
2024-03-31	$3,805,392	939,603	+28.2%	Shares	Sole	2024-05-15
2023-12-31	$2,815,499	733,203	+19.4%	Shares	Sole	2024-02-14
2023-09-30	$2,547,361	613,822	—	Shares	Sole	2023-11-14
No filing history on record for this holder in this stock.