---
schema_version: "secwatch.filing_event.v1"
accession: "0001680062-26-000012"
form_type: "8-K"
ticker: "ACMR"
cik: "0001680062"
company_name: "ACM Research, Inc."
filed_at: "2026-02-03T23:59:59+00:00"
generated_at: "2026-05-16T05:21:04.596753+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ACM Research sets preliminary transfer price of RMB 160/share for 4.8M ACM Shanghai shares

## Summary
- Preliminary transfer price: RMB 160.00 (~$23.05) per share; total of 4,801,648 shares to be sold.
- 38 institutional investors participated; effective subscription multiple of 1.17x (5,639,000 shares validly subscribed).
- 30 institutional investors preliminarily identified as transferees; final transfer subject to CSDC registration and legal risks.
- The inquiry-based transfer does not involve change of control of ACM Shanghai and will not affect corporate governance.

## SEC filing metadata
- accession: 0001680062-26-000012
- form_type: 8-K
- ticker: ACMR
- cik: 0001680062
- company_name: ACM Research, Inc.
- filed_at: 2026-02-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000168006226000012/0001680062-26-000012-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680062/000168006226000012/acmr-20260202.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001680062-26-000012
- JSON: https://secwatch.observer/filing/0001680062-26-000012.json
- Plain text: https://secwatch.observer/filing/0001680062-26-000012.txt

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