---
schema_version: "secwatch.filing_event.v1"
accession: "0001680062-25-000027"
form_type: "8-K"
ticker: "ACMR"
cik: "0001680062"
company_name: "ACM Research, Inc."
filed_at: "2025-09-29T23:59:59+00:00"
generated_at: "2026-05-17T05:24:56.003039+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# ACM Shanghai backlog up 34.1% YoY to RMB 9.07B as of Sep 29, 2025

## Summary
- Total backlog of RMB 9,071.5M ($1,271.6M), up 34.1% year-over-year.
- Backlog includes shipped tools not yet recognized as revenue and orders expected to ship.
- ACM Shanghai will report nine-month results on Oct 29, 2025; ACM full Q3 results in early Nov 2025.

## SEC filing metadata
- accession: 0001680062-25-000027
- form_type: 8-K
- ticker: ACMR
- cik: 0001680062
- company_name: ACM Research, Inc.
- filed_at: 2025-09-29T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000168006225000027/0001680062-25-000027-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680062/000168006225000027/acmr-20250929.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001680062-25-000027
- JSON: https://secwatch.observer/filing/0001680062-25-000027.json
- Plain text: https://secwatch.observer/filing/0001680062-25-000027.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.