MORGAN STANLEY

Position in ABOS — Acumen Pharmaceuticals, Inc.

CIK 895421 NEW YORK, NY

Position in ABOS

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

Position Value

$341,216

-$10,952 QoQ

Shares Held

144,584

-13.4% QoQ

Ownership

0.200%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#28

of 84 holders

Holding Since

Sep 2021

19 quarters on record

Voting authority Sole 38.08374370608089.ToString("F0")% Shared 0.ToString("F0")% None 61.916256293919105.ToString("F0")%

Healthcare · as of Mar 31, 2026

MORGAN STANLEY holds $15,423,671,747 across 511 Biotechnology names. ABOS ranks #303 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	RPRX	Royalty Pharma plc	43,571,633	$2,090,131,227
2	ROIV	Roivant Sciences Ltd.	51,828,325	$1,435,644,595
3	VRTX	Vertex Pharmaceuticals Inc / Ma	3,188,881	$1,423,962,911
4	REGN	Regeneron Pharmaceuticals, Inc.	1,319,329	$1,019,366,352
5	TECH	BIO-TECHNE Corp	8,532,873	$445,927,935
6	MRNA	Moderna, Inc.	8,471,263	$430,340,154
7	ARGX	Argenx SE	560,711	$409,459,203
8	APLS	Apellis Pharmaceuticals, Inc.	10,042,399	$404,005,708

19 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$341,216	144,584	-13.4%	Shares	Defined	2026-05-15
2025-12-31	$352,168	166,905	+11.7%	Shares	Defined	2026-05-27
2025-09-30	$255,474	149,401	-2.8%	Shares	Defined	2026-05-27
2025-06-30	$178,345	153,748	+0.7%	Shares	Defined	2025-08-15
2025-03-31	$167,898	152,636	-42.7%	Shares	Defined	2025-05-15
2024-12-31	$457,889	266,216	+11.3%	Shares	Defined	2025-05-15
2024-09-30	$593,214	239,200	+172.4%	Shares	Defined	2025-05-14
2024-06-30	$212,496	87,809	+80.3%	Shares	Defined	2025-05-14
2024-03-31	$197,282	48,712	+110.6%	Shares	Defined	2024-10-17
2023-12-31	$88,803	23,126	+4.0%	Shares	Defined	2024-08-16
2023-09-30	$92,290	22,239	+45.1%	Shares	Defined	2023-11-15
2023-06-30	$73,705	15,324	-70.2%	Shares	Defined	2023-08-14
2023-03-31	$209,120	51,508	+100.5%	Shares	Defined	2023-05-15
2022-12-31	$138,692	25,684	+35.8%	Shares	Defined	2023-02-14
2022-09-30	$189,706	18,914	-21.8%	Shares	Defined	2022-11-14
2022-06-30	$113,724	24,197	+76.8%	Shares	Defined	2022-10-27
2022-03-31	$53,514	13,687	-33.7%	Shares	Defined	2022-10-27
2021-12-31	$139,477	20,633	+3526.2%	Shares	Defined	2022-02-14
2021-09-30	$8,455	569	—	Shares	Defined	2021-11-15
No filing history on record for this holder in this stock.