0001140361-21-005063.txt : 20210216 0001140361-21-005063.hdr.sgml : 20210216 20210216174302 ACCESSION NUMBER: 0001140361-21-005063 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210212 FILED AS OF DATE: 20210216 DATE AS OF CHANGE: 20210216 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Hu Chenming CENTRAL INDEX KEY: 0001316320 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38273 FILM NUMBER: 21641346 MAIL ADDRESS: STREET 1: 2060 PEBBLE DRIVE CITY: ALAMO STATE: CA ZIP: 94507 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 2021-02-12 0001680062 ACM Research, Inc. ACMR 0001316320 Hu Chenming C/O ACM RESEARCH, INC. 42307 OSGOOD ROAD, SUITE I FREMONT CA 94539 true Class A Common Stock 2021-02-12 4 S 0 10000 120 D 21102 D The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. /s/ Mark L. Johnson, Attorney-in-Fact for Chenming Hu 2021-02-16