ACM Research, Inc.
Ticker: ACMRIndustrialsIndustrial MachineryThe business
ACM Research, Inc. (Nasdaq: SSEC) is a Delaware corporation founded in 1998 that supplies advanced capital equipment for the global semiconductor industry. The company operates primarily through its subsidiary ACM Research (Shanghai), Inc., which conducts the majority of product development, manufacturing, support and services in mainland China. ACM Research also maintains operations in Korea for additional product development and subsystem production, while conducting sales and marketing activities in North America, Europe and select Asian regions through its U.S. subsidiary. The company website is www.acmr.com.
The company develops and manufactures differentiated semiconductor process equipment spanning front-end wafer fabrication through advanced packaging. ACM Research's core business centers on wet-cleaning equipment incorporating proprietary SAPS, TEBO, and Tahoe technologies designed for particle removal and material deposition at increasingly advanced process nodes. The company also produces electrochemical plating, furnace, plasma-enhanced chemical vapor deposition, and track equipment, along with a range of advanced packaging tools including coaters, developers, photoresist strippers, and wet etchers.
In 2025, revenue from single wafer cleaning, Tahoe and semi-critical cleaning equipment totaled $626.0 million or 69.5% of total revenue. Revenue from ECP, furnace and other technologies represented $199.6 million or 22.1% of revenue, while advanced packaging, services and spares contributed $75.8 million or 8.4% of revenue. The company estimates its current product portfolio addresses approximately $21 billion of the global wafer fab equipment market.
ACM Research's customer base consists primarily of foundry, logic and memory chip manufacturers located predominantly in Asia. The company has delivered more than 1,435 tools to customers since 2009. Revenue by customer type in 2025 was distributed as follows: Foundry/Logic/Other represented 59% of total revenue, Memory represented 27%, and Advanced Packaging/Wafer Processing represented 14%.
As of December 31, 2025, the company employed 2,513 full-time equivalent employees, with 2,357 located in mainland China and the Taiwan region, 127 in Korea, and 29 in the United States. The company has been issued more than 594 patents across the United States, mainland China, Japan, Korea, Singapore and Taiwan, with expiration dates ranging from 2027 through 2045.
- Sector
- Industrials
- Industry
- Industrial Machinery
- HQ
- FREMONT, CA
- FY end
- 12-31
- CIK
- 1680062
- SIC
- 3559
Ownership
Who holds ACM Research, Inc. — across funds, superinvestors and bonds · N-PORT 2026Q2 · 13F 2026-06-30
Top fund holders
| Fund | % of fund | Value |
|---|---|---|
| iShares Core S&P Small-Cap ETF IJR · iShares Trust | 0.39% | $436.23M |
| SMALLCAP World Fund Inc SMCWX | 0.39% | $371.48M |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VTI · VANGUARD INDEX FUNDS | 0.01% | $222.10M |
| iShares Russell 2000 ETF IWM · iShares Trust | 0.21% | $175.67M |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VGT · VANGUARD WORLD FUND | 0.07% | $115.24M |
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
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