ACM Research, Inc. — Director's Dealing 2020

May 26, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ACM Research, Inc. (ACMR)
CIK: 0001680062
Period of Report: 2020-05-21

Reporting Person: Wang David H (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-21	Class A Common Stock	C	33334	—	Acquired	33334	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-21	Class B Common Stock	$	C	33334	Disposed		Class A Common Stock (33334)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	168006	Direct
Class A Common Stock	15279	Indirect
Class A Common Stock	60000	Indirect
Class A Common Stock	206667	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class B Common Stock	$		Class A Common Stock (1146934)	1146934	Direct
Class B Common Stock	$		Class A Common Stock (7334)	7334	Indirect
Class B Common Stock	$		Class A Common Stock (117334)	117334	Indirect
Class B Common Stock	$		Class A Common Stock (117334)	117334	Indirect

Footnotes

F1: Class B Common Stock of the Issuer is convertible into Class A Common Stock of the Issuer on a 1-for-1 basis upon certain transfers of such shares and at the holder's election, and has no expiration date.