ACM Research, Inc. — Director's Dealing 2017

Nov 2, 2017

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: ACM Research, Inc. (ACMR)
CIK: 0001680062
Period of Report: 2017-11-02

Reporting Person: Wang David H (Director, See Remarks, 10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	166667	Direct
Class B Common Stock	1146934	Direct
Class A Common Stock	60000	Indirect
Class B Common Stock	7334	Indirect
Class A Common Stock	206667	Indirect
Class B Common Stock	33334	Indirect
Class B Common Stock	117334	Indirect
Class B Common Stock	117334	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option	$0.75	2021-05-01	Class A Common Stock (133334)		Direct
Stock Option	$0.75	2021-05-01	Class A Common Stock (166667)		Direct
Stock Option	$1.50	2025-05-01	Class A Common Stock (400000)		Direct
Stock Option	$3.00	2026-12-27	Class A Common Stock (333334)		Direct
Stock Option	$3.00	2026-12-27	Class A Common Stock (18334)		Indirect

Footnotes

F1: Option was fully vested on May 1, 2011.

F2: Option was fully vested on May 1, 2011.

F3: The option vested and became exercisable as to 100,000 shares on May 1, 2016 and the remaining 300,000 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

F4: The option will vest and become exercisable as to 83,333 shares on January 1, 2018 and the remaining 250,001 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

F5: The option vested and became exercisable as to 9,167 shares on July 5, 2017 and the remaining 9,167 shares vest and become exercisable in equal monthly installments over the following 12 months, subject to continued service through each vesting date.