ACM Research, Inc. — Director's Dealing 2020

Nov 9, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ACM Research, Inc. (ACMR)
CIK: 0001680062
Period of Report: 2020-11-05

Reporting Person: Cheav Sotheara (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-11-05	Class A Common Stock	M	20000	$1.5	Acquired	63334	Direct
2020-11-05	Class A Common Stock	F	330	$91	Disposed	63004	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-11-05	Stock Option	$1.5	M	20000	Disposed	2025-05-01	Class A Common Stock (20000)	Direct

Footnotes

F1: On November 5, 2020, the reporting person exercised, by net exercise, a previously issued stock option to purchase 20,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 330 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 4, 2020 of $91.00, and issuing to the reporting person the remaining 19,670 shares of Class A Common Stock.

F2: The option is fully vested and exercisable.