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Alpha stage software — under active development. Data may be incomplete or change without notice.

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Q2 2026 58/68 funds filed
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Some record dates are in the future and are excluded from the latest observation date.

Stock overview

Acm Research Inc - US

Explore the company, reported ownership, price history, and available source evidence.

ACM Research makes wafer cleaning and other front-end processing equipment for semiconductor manufacturers.

ACMR · USD

Price

$63.94 -$2.92 (-4.37%) vs previous close

Close · Sep 15, 2026

Market closed Latest stored daily close

Intraday prices unavailable for this session. Showing the latest stored daily close.

$63.94 Sep 15, 2026
ACMR 1D closing price chart Latest stored daily close from Sep 15, 2026. Low $63.94; high $63.94.
Sep 15, 2026Sep 15, 2026Sep 15, 2026
Range low
$63.94
Range high
$63.94
Observations
1
Session date
Sep 15, 2026
View price observations (1)
ACMR · Sep 15, 2026 · completed price observations
ObservationPrice
· Final close $63.94

Sep 15, 2026. Regular market hours only. Historical prices are unadjusted; splits and other corporate actions can affect comparisons.

Investor Popularity

Rows are narrowed by movement, fund type, and position size.

2 holders
Fund Move Value Weight
Renaissance Technologies largest tracked holder Q2 2026 · filed Aug 13, 2026 · SEC filing +87% 26'Q2 $29,159,322 0.04%
Gotham Asset Management position history Q2 2026 · filed Aug 14, 2026 · SEC filing Newly reported 26'Q2 $382,827 0%

SEC Forms 4/5

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