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Active cluster sell — 3 distinct insiders, $15.3M, window ends Sep 9, 2026.
Figures computed from official regulatory filings — .
Analysttarget 115.33 USD (+110%) · consensus 4.5/5 · 9 buy · 1 hold · 0 sell
Ownershipinsiders 3.86% · institutions 77.88% · short 7.5% of float
In USD · as of Oct 19, 2026
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ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells capital equipment in Mainland China and internationally. It also develops, manufactures, and sells a range of packaging tools to wafer assembly and packaging customers. The company provides wet cleaning equipment for front end production processes; electrochemical plating, furnace, PECVD, and track platforms; Space Alternated Phase Shift, technology for flat and wafer surfaces; timely energized bubble oscillation, technology for patterned wafer surfaces at advanced process nodes; and Tahoe technology; and semi-critical cleaning tools. It also offers advanced packaging equipment, such as coaters, developers, photoresist strippers, scrubbers, wet etchers and copper-plating equipment; and advanced packaging products include: Ultra ECP ap, which delivers a uniform metal layer to finished wafers prior to packaging; Ultra C Developer, which applies liquid developer to selected parts of photoresist to resolve an image; Ultra C PR Megasonic-Assisted Stripper, which removes photoresist; Ultra C Scrubber, which scrubs and cleans wafers; Ultra C Thin Wafer Scrubber, which addresses a sub-market of cleaning very thin wafers for certain Asian assembly factories; and Ultra C Wet Etcher, which etches silicon wafers and copper and titanium interconnects. In addition, the company provides ECP technology for advanced metal plating; Ultra fn Furnace, a dry processing tool; Ultra Pmax PECVD tools, a proprietary designed chamber, gas distribution unit, and chuck; and Ultra Track, a 300mm process tool that delivers uniform air downflow, fast robot handling and configurable software to address specific customer requirements. It markets and sells its products under the SAPS, TEBO, ULTRA C, ULTRA Fn, Ultra ECP, Ultra ECP map, and Ultra ECP ap trademarks through direct sales force and third-party representatives. ACM Research, Inc. was incorporated in 1998 and is headquartered in Fremont, California.
Market information source · Oct 19, 2026
SEC company identity · Oct 19, 2026
Open-market timeline · full history
253 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Wang David H | Exercise | $70K | SEC |
| Wang David H | Sell | $1.4M | SEC |
| Wang David H | Sell | $117.9K | SEC |
| Wang David H | Exercise | $70K | SEC |
| Wang David H | Sell | $4M | Unusual size | SEC |
| Wang David H | Sell | $881.7K | SEC |
| Wang David H | Sell | $365K | SEC |
| Wang David H | Sell | $2.5M | SEC |
| Wang David H | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Wang David H | Sell | $962.2K | SEC |
| Wang David H | Sell | $85.3K | SEC |
| Wang David H | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Wang David H | Sell | $368.8K | SEC |
| Dun Haiping | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Pappis Charles C | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Liu Tracy | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Liu Tracy | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Pappis Charles C | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Dun Haiping | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McKechnie Mark | Sell | $873.1K | SEC |
| McKechnie Mark | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McKechnie Mark | Sell | $2.4M | Unusual size | SEC |
| McKechnie Mark | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McKechnie Mark | Exercise | $347.3K | SEC |
| McKechnie Mark | Sell | $1M | SEC |