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The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4."}],"balance_after":253158,"source":{"system":"sec-edgar","filing":"0001140361-24-029352","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036124029352/form4.xml","form_type":"4"}},{"id":1486859,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Class A Common Stock","published_at":"2024-06-07T21:32:03.000Z","date":"2024-06-06","kind":"exercise","planned":true,"acquired":true,"shares":30000,"price":4.62,"value":138600.0,"ownership":{"direct":true},"balance_after":283158,"source":{"system":"sec-edgar","filing":"0001140361-24-029352","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036124029352/form4.xml","form_type":"4"}},{"id":2016536,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Stock Option","published_at":"2023-02-14T18:20:28.000Z","date":"2023-02-12","kind":"grant","acquired":true,"shares":15000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On March 4, 2022, the reporting person was granted an option to purchase 75,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On February 12, 2023, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 15,000 shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On March 4, 2022, the reporting person was granted an option to purchase 75,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On February 12, 2023, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 15,000 shares."}],"balance_after":15000,"derivative":{"exercise_price":25.45,"expiration_date":"2032-03-03","underlying":"Class A Common Stock","underlying_shares":15000},"source":{"system":"sec-edgar","filing":"0001140361-23-007065","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036123007065/form4.xml","form_type":"4"}},{"id":2927713,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Class A Common Stock","published_at":"2020-12-31T17:30:13.000Z","date":"2020-12-30","kind":"sale","acquired":false,"shares":32486,"price":78,"value":2533908.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."}],"balance_after":84386,"source":{"system":"sec-edgar","filing":"0001140361-20-030086","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036120030086/form4.xml","form_type":"4"}},{"id":3034467,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Stock Option","published_at":"2020-09-10T19:00:32.000Z","date":"2020-09-09","kind":"exercise","acquired":false,"shares":33334,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 9, 2020, the reporting person exercised, by net exercise, a previously issued stock option to purchase 33,334 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 848 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on September 8, 2020 of $58.97, and issuing to the reporting person the remaining 32,486 shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option is fully vested and exercisable."}],"balance_after":0,"derivative":{"exercise_price":1.5,"expiration_date":"2025-05-01","underlying":"Class A Common Stock","underlying_shares":33334},"source":{"system":"sec-edgar","filing":"0001140361-20-020160","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036120020160/form4.xml","form_type":"4"}},{"id":3034466,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Class A Common Stock","published_at":"2020-09-10T19:00:32.000Z","date":"2020-09-09","kind":"tax_withholding","acquired":false,"shares":848,"price":58.97,"value":50006.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 9, 2020, the reporting person exercised, by net exercise, a previously issued stock option to purchase 33,334 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 848 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on September 8, 2020 of $58.97, and issuing to the reporting person the remaining 32,486 shares of Class A Common Stock."}],"balance_after":116872,"source":{"system":"sec-edgar","filing":"0001140361-20-020160","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036120020160/form4.xml","form_type":"4"}},{"id":3034465,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Class A Common Stock","published_at":"2020-09-10T19:00:32.000Z","date":"2020-09-09","kind":"exercise","acquired":true,"shares":33334,"price":1.5,"value":50001.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 9, 2020, the reporting person exercised, by net exercise, a previously issued stock option to purchase 33,334 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 848 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on September 8, 2020 of $58.97, and issuing to the reporting person the remaining 32,486 shares of Class A Common Stock."}],"balance_after":117720,"source":{"system":"sec-edgar","filing":"0001140361-20-020160","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036120020160/form4.xml","form_type":"4"}},{"id":3082821,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Class A Common Stock","published_at":"2020-07-15T20:02:07.000Z","date":"2020-03-31","kind":"other","acquired":false,"shares":242681,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Shengxin (Shanghai) Management Consulting Limited Partnership"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The reporting person resigned from his role as general partner of Shengxin (Shanghai) Management Consulting Limited Partnership (\"SMC\") effective March 31, 2020 and therefore is no longer deemed to beneficially own securities of the Issuer held by SMC."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001140361-20-016100","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000114036120016100/form4.xml","form_type":"4"}},{"id":3428304,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Class A Common Stock","published_at":"2019-08-27T20:43:30.000Z","date":"2019-08-23","kind":"disposition_to_issuer","acquired":false,"shares":154821,"price":13.195,"value":2042863.095,"ownership":{"direct":false,"nature":"By Shengxin (Shanghai) Management Consulting Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In connection with a public offering of Class A Common Stock by the Issuer, Shengxin (Shanghai) Management Consulting Limited Partnership (\"SMC\") and certain other stockholders entered into an Equity Purchase Agreement dated August 4, 2019 pursuant to which SMC 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 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. The transaction being reported relates to SMC's sale under the Equity Purchase Agreement. Mr. Wang, the reporting person, is a general partner of SMC and therefore may be deemed to beneficially own the securities held by SMC."}],"balance_after":327067,"source":{"system":"sec-edgar","filing":"0001654954-19-010062","document":"section16.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000165495419010062/section16.xml","form_type":"4"}},{"id":3548752,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Stock Options","published_at":"2019-04-25T20:03:58.000Z","date":"2019-04-23","kind":"grant","acquired":true,"shares":30000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option will vest and become exercisable as to 7,500 shares on April 23, 2020 and the remaining 22,500 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date."}],"balance_after":30000,"derivative":{"exercise_price":16.81,"expiration_date":"2029-04-22","underlying":"Class A Common Stock","underlying_shares":30000},"source":{"system":"sec-edgar","filing":"0001654954-19-004825","document":"section16.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000165495419004825/section16.xml","form_type":"4"}},{"id":3784922,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Stock Options","published_at":"2018-10-23T16:35:38.000Z","date":"2018-08-01","kind":"grant","acquired":true,"shares":40000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option will vest and become exercisable as to 10,000 shares on August 1, 2019 and the remaining 30,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date."}],"balance_after":40000,"derivative":{"exercise_price":13.85,"expiration_date":"2028-07-31","underlying":"Class A Common Stock","underlying_shares":40000},"source":{"system":"sec-edgar","filing":"0001654954-18-011484","document":"section16.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000165495418011484/section16.xml","form_type":"4"}},{"id":3857925,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Warrant (Right to Buy)","published_at":"2018-07-31T16:43:00.000Z","date":"2018-04-02","kind":"other","acquired":false,"shares":397502,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Shengxin (Shanghai) Management Consulting Limited Partnership"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On April 2, 2018, Shengxin (Shanghai) Management Consulting Limited Partnership (\"SMC\") exercised the warrant. Mr. Wang, the reporting person, is a general partner of SMC and therefore may be deemed to beneficially own the securities held by SMC."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The warrant became exercisable immediately after the closing of the Issuer's initial public offering, which occurred on November 7, 2017."}],"balance_after":0,"derivative":{"exercise_price":7.5,"expiration_date":"2023-05-17","underlying":"Class A Common Stock","underlying_shares":397502},"source":{"system":"sec-edgar","filing":"0001654954-18-008249","document":"section16.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000165495418008249/section16.xml","form_type":"4"}},{"id":3857924,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":75111,"kind":"person","name":"Wang Jian","position":1,"cik":"0001721620","reported_name":"Wang Jian","relationship":{"officer":true,"officer_title":"See remarks"}}],"security":"Class A Common Stock","published_at":"2018-07-31T16:43:00.000Z","date":"2018-04-02","kind":"other","acquired":true,"shares":397502,"price":7.5,"value":2981265.0,"ownership":{"direct":false,"nature":"By Shengxin (Shanghai) Management Consulting Limited Partnership"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On April 2, 2018, Shengxin (Shanghai) Management Consulting Limited Partnership (\"SMC\") exercised the warrant. Mr. Wang, the reporting person, is a general partner of SMC and therefore may be deemed to beneficially own the securities held by SMC."}],"balance_after":481888,"source":{"system":"sec-edgar","filing":"0001654954-18-008249","document":"section16.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721620/000165495418008249/section16.xml","form_type":"4"}}]}