Share ownership ACM Research, Inc.

ACMR

US00108J1097

Semiconductor Equipment & Testing

Market Closed - Nasdaq Other stock markets 20:00:00 12/03/2026 GMT			5-day change	1st Jan Change
45.27 ^USD	-5.45%		-6.29%	+14.75%

03-05	US lawmakers raise concerns about Intel's testing of tools from China-linked firm	RE
03-05	US lawmakers raise concerns over Intel's testing of tools made by Chinese-linked firm	RE

Share class: ACM Research, Inc.

	Vote	Quantity	Free-Float	Company-owned shares	Total Float
Stock A	1	5,021,811	0	0	77.92 %
Stock B	1	57,606,036	48,800,163 ( 84.71 %)	0

Major shareholders: ACM Research, Inc.

Name	Equities	%	Valuation
BlackRock Advisors LLC 12.55 %	7,512,128	12.55 %	418 M $
Vanguard Fiduciary Trust Co. 8.307 %	4,972,103	8.307 %	277 M $
LSV Asset Management 3.977 %	2,380,521	3.977 %	133 M $
Shanghai Science & Technology Venture Capital Group Co. Ltd. 3.907 %	2,338,510	3.907 %	130 M $
STATE STREET CORPORATION 3.271 %	1,958,041	3.271 %	109 M $
Triata Capital Ltd. 3.224 %	1,929,919	3.224 %	107 M $
David Wang 2.921 %	1,748,548	2.921 %	97 M $
Southeastern Asset Management, Inc. 2.807 %	1,680,181	2.807 %	94 M $
Morgan Stanley Capital Services LLC 2.326 %	1,392,306	2.326 %	78 M $
Geode Capital Management LLC 2.244 %	1,342,899	2.244 %	75 M $
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Name	Equities	%	Valuation
David Wang 81.91 %	4,166,808	81.91 %	232 M $
Hai Ping Dun 5.898 %	300,000	5.898 %	17 M $
Jian Wang 2.949 %	150,003	2.949 %	8 M $

Breakdown by shareholder type

Institutional	72.13%
Individuals	13.36%
Other	4.44%
State Street Corp.	3.27%
SEI Investments Co.	0.19%
Schweizerische Nationalbank	0.18%
Manulife Financial Corp.	0.04%
Governments	0.03%
Unknown	6.36%

Based on 1000 largest holdings

Geographical origin of shareholders

United States	62.08%
Individuals	13.36%
Hong Kong	5.28%
United Kingdom	5.11%
China	3.91%
Ireland	1.08%
Austria	0.76%
Canada	0.54%
Australia	0.41%
Cayman Islands	0.39%
France	0.25%
Switzerland	0.22%
Singapore	0.09%
Norway	0.07%
Sweden	0.03%
Spain	0.02%
South Korea	0.01%
Thailand	0.01%
Italy	0.01%
Japan	0.01%

Based on 1000 largest holdings

ACM Research, Inc. develops, manufactures, and sells production equipment and provides service solutions for single-wafer or batch wet cleaning, electroplating, stress-free polishing, plasma-enhanced chemical vapor deposition (PECVD), track and thermal processes. The Company offers two principal models of wet wafer cleaning equipment based on its Space Alternated Phase Shift (SAPS) technology, Ultra C SAPS II and Ultra C SAPS V. It has also developed Timely Energized Bubble Oscillation (TEBO) technology for application in wet wafer cleaning during the fabrication of two-dimensional (2D) and three-dimensional (3D) wafers with fine feature sizes. It has designed these tools for use in fabricating foundry, logic, and memory chips, including dynamic random-access memory (DRAM), 3D NAND-flash memory chips, and compound semiconductor chips. The Company also develops, manufactures, and sells a range of advanced packaging tools to wafer assembly and packaging customers.

Employees

2,513

Sector

Semiconductor Equipment & Testing

More about the company