0001654954-19-010061.txt : 20190827 0001654954-19-010061.hdr.sgml : 20190827 20190827204245 ACCESSION NUMBER: 0001654954-19-010061 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20190823 FILED AS OF DATE: 20190827 DATE AS OF CHANGE: 20190827 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: 191058964 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 section16.xml PRIMARY DOCUMENT X0306 4 2019-08-23 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 2019-08-23 4 D false 2143 13.195 D 16924 D In connection with a public offering of Class A Common Stock by the Issuer, the reporting person and certain other stockholders entered into an Equity Purchase Agreement dated August 4, 2019 pursuant to which the reporting person and such stockholders agreed to sell, and the Issuer agreed to purchase, shares of the Issuer's Common Stock funded by the net proceeds, if any, from the Issuer's sale of Class A Common Stock pursuant to an exercise of the underwriters' over-allotment option. The transaction being reported relates to the reporting person's sale under the Equity Purchase Agreement. The obligations of the parties to the Equity Purchase Agreement became fixed and irrevocable as of the transaction date, which is the date of the closing of the underwriters' over-allotment option. /s/ Mark L. Johnson, Attorney-in-Fact for Tracy Liu 2019-08-27