ADVISORY RESEARCH INC

Position in ACMR — ACM Research, Inc.

CIK 902584 CHICAGO, IL

Position in ACMR

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

Position Value

$3,645,803

+$2,532,238 QoQ

Shares Held

28,732

+1.5% QoQ

Ownership

0.041%

of shares outstanding

% of Portfolio

0.38%

of 13F equity value

Holder Rank

#115

of 374 holders

Holding Since

Sep 2023

6 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

ADVISORY RESEARCH INC holds $12,410,336 across 3 Semiconductor Equipment & Materials names. ACMR ranks #2 (29.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LRCX	Lam Research Corp	19,824	$8,590,333
2	ACMR	ACM Research, Inc. This page	28,732	$3,645,803
3	ATOM	Atomera Inc	20,000	$174,200

6 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$3,645,803	28,732	+1.5%	Shares	Sole	2026-08-13
2026-03-31	$1,113,565	28,299	+3.6%	Shares	Sole	2026-05-14
2025-12-31	$1,077,931	27,324	+5.4%	Shares	Sole	2026-02-13
2025-09-30	$1,014,836	25,935	+80.3%	Shares	Sole	2025-11-13
2023-12-31	$281,082	14,385	-33.7%	Shares	Sole	2024-02-13
2023-09-30	$392,606	21,685	—	Shares	Sole	2023-11-13
No filing history on record for this holder in this stock.