0001140361-23-054444.txt : 20231122 0001140361-23-054444.hdr.sgml : 20231122 20231122161534 ACCESSION NUMBER: 0001140361-23-054444 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231120 FILED AS OF DATE: 20231122 DATE AS OF CHANGE: 20231122 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: 231433679 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 X0508 4 2023-11-20 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 2023-11-20 4 M 0 15000 7.36 A 51924 D Class A Common Stock 2023-11-20 4 S 0 15000 17.91 D 36924 D Stock Option 7.36 2023-11-20 4 M 0 15000 0 D 2030-03-19 Class A Common Stock 15000 0 D On November 20, 2023, the reporting person exercised a previously issued stock option to purchase 15,000 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.68 to $18.09, inclusive. The option is fully vested and exercisable. /s/ Mark McKechnie, Attorney-in-Fact for Tracy Liu 2023-11-22