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ACM Research ACMR · USD

Information Technology · US listing · 🇺🇸 United States

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49.75

+11.52%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
BLACKROCK, INC.8m11.86%+96.4k31 Mar 2026
BlackRock Institutional Trust Company, N.A.7.2m10.75%+238.8k31 Dec 2025
The Vanguard Group, Inc.5m7.37%+124.5k31 Dec 2025
LSV Asset Management2.4m3.54%−123.8k31 Dec 2025
VANGUARD CAPITAL MANAGEMENT LLC2.3m3.36%+2.3m31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC2.2m3.27%+2.2m31 Mar 2026
STATE STREET CORP2m2.98%+48.1k31 Mar 2026
State Street Investment Management (US)2m2.91%−32.2k31 Dec 2025
Triata Capital Limited1.9m2.87%−73.3k31 Dec 2025
WCM INVESTMENT MANAGEMENT, LLC1.9m2.76%+1.8m31 Mar 2026
Wang (David Hui)1.7m2.60%—12 Mar 2026
Southeastern Asset Management, Inc.1.7m2.50%+194.5k31 Dec 2025
GEODE CAPITAL MANAGEMENT, LLC1.4m2.04%+28.3k31 Mar 2026
Geode Capital Management, L.L.C.1.3m2.00%+19.4k31 Dec 2025
Invesco Capital Management LLC1.3m1.93%+1.1m31 Dec 2025

Insider trades

Purchases and sales by directors and officers, as filed with the regulator

DateWhoTypeSharesPriceValue
12 Mar 2026 ↗McKechnie MarkSee RemarksSale98.6k45.58$4.5m
12 Mar 2026 ↗Wang David HSee RemarksSale50k45.58$2.3m
11 Mar 2026 ↗Wang David HSee RemarksSale60k47.92$2.9m
11 Mar 2026 ↗Liu TracyDirectorSale15k47.91$718,636
10 Mar 2026 ↗Liu TracyDirectorSale45k47.38$2.1m
9 Mar 2026 ↗Dun HaipingDirectorSale5k43.47$217,363
6 Mar 2026 ↗Feng LisaSee remarksSale15k46.08$691,152
5 Mar 2026 ↗Feng LisaSee remarksSale15k50.01$750,139
5 Mar 2026 ↗Pappis Charles CDirectorSale5k50.09$250,450

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

3.5m

-14.1% on the period before. 2.6 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

55.3%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 21 Sept 2026679 shares
  • 9 Sept 202629,486 shares
  • 8 Sept 20264,696 shares
  • 4 Sept 2026160 shares
  • 28 Aug 202658 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.