0001140361-20-006447.txt : 20200320 0001140361-20-006447.hdr.sgml : 20200320 20200320163043 ACCESSION NUMBER: 0001140361-20-006447 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20200318 FILED AS OF DATE: 20200320 DATE AS OF CHANGE: 20200320 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Liu Tracy CENTRAL INDEX KEY: 0001721299 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38273 FILM NUMBER: 20732339 MAIL ADDRESS: STREET 1: C/O ACM RESEARCH, INC. STREET 2: 42307 OSGOOD ROAD, SUITE I CITY: FREMONT STATE: CA ZIP: 94539 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: ACM Research, Inc. CENTRAL INDEX KEY: 0001680062 STANDARD INDUSTRIAL CLASSIFICATION: SPECIAL INDUSTRY MACHINERY, NEC [3559] IRS NUMBER: 000000000 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 42307 OSGOOD ROAD, SUITE I CITY: FREMONT STATE: CA ZIP: 94539 BUSINESS PHONE: 510-445-3700 MAIL ADDRESS: STREET 1: 42307 OSGOOD ROAD, SUITE I CITY: FREMONT STATE: CA ZIP: 94539 4 1 form4.xml FORM 4 X0306 4 2020-03-18 0001680062 ACM Research, Inc. ACMR 0001721299 Liu Tracy C/O ACM RESEARCH, INC. 42307 OSGOOD ROAD, SUITE I FREMONT CA 94539 true Class A Common Stock 2020-03-18 4 M 0 20000 3 A 36924 D Stock Option 3 2020-03-18 4 M 0 20000 0 D 2026-12-27 Class A Common Stock 20000 30000 D On March 18, 2020, the reporting person exercised previously issued stock options to purchase 20,000 shares of Class A Common Stock of the Issuer. The option vested and became exercisable as to 12,500 shares on September 29, 2017 and the remaining 37,500 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. /s/ Mark L. Johnson, Attorney-in-Fact for Tracy Liu 2020-03-20