MARSHALL WACE, LLP

Position in ABOS — Acumen Pharmaceuticals, Inc.

CIK 1318757 LONDON, X0

Position in ABOS

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$128,464

-$326,753 QoQ

Shares Held

48,114

-75.1% QoQ

Ownership

0.067%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#38

of 96 holders

Holding Since

Sep 2021

10 quarters on record

Voting authority Sole 0% Shared 100% None 0%

Healthcare · as of Jun 30, 2026

MARSHALL WACE, LLP holds $3,014,740,742 across 267 Biotechnology names. ABOS ranks #252 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	543,897	$270,169,956
2	INCY	Incyte Corp	1,310,154	$148,519,056
3	RPRX	Royalty Pharma plc	2,450,669	$137,409,009
4	SYRE	Spyre Therapeutics, Inc.	991,693	$88,042,503
5	ALNY	Alnylam Pharmaceuticals, Inc.	259,799	$78,207,292
6	TVTX	Travere Therapeutics, Inc.	1,333,207	$75,739,488
7	MANE	Veradermics, Inc	585,560	$71,988,746
8	DFTX	Definium Therapeutics, Inc.	1,298,946	$61,102,419

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$128,464	48,114	-75.1%	Shares	Other	2026-08-13
2026-03-31	$455,217	192,889	+822.6%	Shares	Other	2026-05-15
2025-12-31	$44,112	20,907	-84.8%	Shares	Other	2026-02-13
2025-06-30	$160,013	137,943	+53.8%	Shares	Other	2025-08-13
2024-03-31	$363,313	89,707	+251.9%	Shares	Other	2024-05-15
2023-09-30	$105,791	25,492	+35.5%	Shares	Other	2023-11-14
2022-06-30	$88,397	18,808	-42.7%	Shares	Other	2022-08-15
2022-03-31	$128,345	32,825	-79.0%	Shares	Other	2022-05-16
2021-12-31	$1,056,250	156,250	0.0%	Shares	Other	2022-02-14
2021-09-30	$2,321,875	156,250	—	Shares	Sole	2021-11-15
No filing history on record for this holder in this stock.