ACM Research, Inc. — Director's Dealing 2022

Aug 17, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ACM Research, Inc. (ACMR)
CIK: 0001680062
Period of Report: 2022-08-15

Reporting Person: Dun Haiping (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-08-15	Class A Common Stock	M	37500	$0.5	Acquired	929109	Direct
2022-08-15	Class A Common Stock	F	963	$19.49	Disposed	928146	Direct
2022-08-15	Class A Common Stock	S	36519	$19.28	Acquired	891627	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2022-08-15	Stock Option	$0.5	M	37500	Disposed	2025-05-01	Class A Common Stock (37500)	Direct

Footnotes

F1: On August 15, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 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 963 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 August 12, 2022 of $19.49, and issuing to the reporting person the remaining 36,537 shares of Class A Common Stock.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.03 to $19.60, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

F3: The option is fully vested and exercisable.