---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-027353"
form_type: "8-K"
ticker: "ACMR"
cik: "0001680062"
company_name: "ACM Research, Inc."
filed_at: "2026-04-27T23:59:59+00:00"
generated_at: "2026-05-15T03:52:40.481820+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# ACM Research prelim Q1 rev $225-230M (+31-33% YoY); reaffirms FY outlook $1.08-1.175B

## Summary
- Preliminary Q1 2026 revenue $225-230M (31-33% YoY growth); total shipments $233-238M (49-52% YoY growth).
- Reaffirms full-year 2026 revenue outlook $1.08-1.175B, representing 20-30% YoY growth.
- Company owns ~74% of ACM Shanghai; full Q1 results and further guidance on May 7, 2026 earnings call.
- Results are preliminary, unaudited, and subject to quarter-end closing procedures and auditor review.
- Press release coincides with ACM Shanghai's Q1 2026 results release on Shanghai Stock Exchange.

## SEC filing metadata
- accession: 0001628280-26-027353
- form_type: 8-K
- ticker: ACMR
- cik: 0001680062
- company_name: ACM Research, Inc.
- filed_at: 2026-04-27T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000162828026027353/0001628280-26-027353-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680062/000162828026027353/acmr-20260427.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-027353
- JSON: https://secwatch.observer/filing/0001628280-26-027353.json
- Plain text: https://secwatch.observer/filing/0001628280-26-027353.txt

## Key facts
- Earnings Releases
  ACM Research, Inc. reported first quarter of 2026 results: revenue in the range of $225 million to $230 million.
  - Period: first quarter of 2026
  - Revenue: in the range of $225 million to $230 million
  - Result: preliminary results
  source text: preliminary unaudited revenue for the first quarter of 2026 is expected to be in the range of $225 million to $230 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/1680062/000162828026027353/0001628280-26-027353-index.htm
- Earnings Releases
  ACM Research, Inc. reported full year 2026 results: revenue in the range of $1.08 billion to $1.175 billion. Guidance reaffirmed.
  - Period: full year 2026
  - Revenue: in the range of $1.08 billion to $1.175 billion
  - Guidance: reaffirmed
  - Result: guidance update
  source text: re-affirms full year 2026 revenue outlook in the range of $1.08 billion to $1.175 billion
  evidence_url: https://www.sec.gov/Archives/edgar/data/1680062/000162828026027353/0001628280-26-027353-index.htm

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