0001140361-24-010869.txt : 20240301 0001140361-24-010869.hdr.sgml : 20240301 20240301213028 ACCESSION NUMBER: 0001140361-24-010869 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240228 FILED AS OF DATE: 20240301 DATE AS OF CHANGE: 20240301 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Liu Tracy CENTRAL INDEX KEY: 0001721299 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38273 FILM NUMBER: 24712664 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] ORGANIZATION NAME: 06 Technology 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 X0508 4 2024-02-28 0001680062 ACM Research, Inc. ACMR 0001721299 Liu Tracy C/O ACM RESEARCH, INC. 42307 OSGOOD ROAD, SUITE I FREMONT CA 94539 true true Class A Common Stock 2024-02-28 4 M 0 12500 5.6 A 123272 D Class A Common Stock 2024-02-28 4 S 0 12500 25.2 D 110772 D Stock Option 5.6 2024-02-28 4 M 0 12500 0 D 2029-04-22 Class A Common Stock 12500 19500 D On February 28, 2024, the reporting person exercised a previously issued stock option to purchase 12,500 shares of Class A Common Stock of the Issuer. The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 21, 2023. The option is fully vested and exercisable. /s/ Mark McKechnie, Attorney-in-Fact for Tracy Liu 2024-03-01