ACM Research, Inc. — Director's Dealing 2025

Nov 14, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ACM Research, Inc. (ACMR)
CIK: 0001680062
Period of Report: 2025-11-12

Reporting Person: Dun Haiping (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-12	Class A Common Stock	G	755090	—	Disposed	0	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	755090	Indirect

Footnotes

F1: Reflects a gift of 755,090 shares of Class A common stock from the reporting person to the Haiping Dun & Chi-Pin H Dun Revocable Trust, of which the reporting person is co-trustee and of which the reporting person's immediate family members are beneficiaries.