ACM Research, Inc. — Director's Dealing 2025

May 21, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ACM Research, Inc. (ACMR)
CIK: 0001680062
Period of Report: 2025-03-15

Reporting Person: Pappis Charles C (N/A)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-15	Stock Option	$29.18	A	10000	Acquired	2035-03-14	Class A Common Stock (10000)	Direct

Footnotes

F1: The option will vest and become exercisable immediately prior to the 2025 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.