0001140361-26-022458.txt : 20260521 0001140361-26-022458.hdr.sgml : 20260521 20260521163011 ACCESSION NUMBER: 0001140361-26-022458 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260519 FILED AS OF DATE: 20260521 DATE AS OF CHANGE: 20260521 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Dun Haiping CENTRAL INDEX KEY: 0001721581 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38273 FILM NUMBER: 261008993 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 EIN: 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