ACMR insider trading
NasdaqGM TechnologyACM Research, Inc. — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.
About ACM Research, Inc.
ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells capital equipment worldwide. 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; Ultra C SAPS II and Ultra C SAPS V which are a single-wafer, serial-processing tool used to remove random defects from wafer surfaces or interconnects and barrier metals as part of the chip front-end fabrication process or for recycling test wafers; and Ultra C TEBO II and Ultra C TEBO V, a single-wafer, serial-processing tool used at numerous manufacturing processing steps for cleaning of chips at process nodes of 28nm or less. In addition, it offers Ultra-C Tahoe wafer cleaning tool that delivers high cleaning performance using significantly less sulfuric acid and hydrogen peroxide than is typically consumed by conventional high-temperature single-wafer cleaning tools; and advanced packaging tools, such as coaters, developers, photoresist strippers, scrubbers, wet etchers, and copper-plating tools. Further, the company provides e Ultra fn Furnace, a dry processing tool; Ultra Pmax PECVD tool, for film uniformity; Ultra Track tool, a 300mm process tool that delivers air downflow, robot handling, and customizable software to address specific customer requirements; and a suite of semi-critical cleaning systems which include single wafer back side cleaning, scrubber, and auto bench cleaning tools. 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.
Company website: www.acmr.com
ACMR insider activity at a glance
FilingIQ has scored 402 insider transactions for ACMR since Jan 31, 2018. The most recent filing in our index is dated Apr 17, 2026.
Across the full history, 0 open-market purchases
and 216 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on ACMR insider trades is 63.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Other Technology tickers with recent insider activity
13F funds holding ACMR
Frequently asked
- How many insider trades does FilingIQ track for ACMR?
- FilingIQ tracks 402 Form 4 insider transactions for ACMR (ACM Research, Inc.), covering filings from Jan 31, 2018 onwards. 45 of those were filed in the last 90 days.
- Are ACMR insiders net buyers or net sellers?
- Across the full Form 4 history for ACMR, 0 transactions (0%) were open-market purchases and 216 (54%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does ACMR insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
- What sector is ACMR in?
- ACM Research, Inc. (ACMR) is classified in the Technology sector, specifically Semiconductor Equipment & Materials, with a current market capitalisation of $4.31B.
Methodology & sources
Every ACMR insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.