{"transactions":[{"id":4614707,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-09","kind":"exercise","planned":true,"acquired":false,"shares":70000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"The option is fully vested and exercisable."}],"balance_after":130000,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":70000},"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614706,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-08","kind":"exercise","planned":true,"acquired":false,"shares":70000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"The option is fully vested and exercisable."}],"balance_after":200000,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":70000},"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614705,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-09","kind":"sale","planned":true,"acquired":false,"shares":1100,"price":77.59,"value":85349.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.59 to $77.59, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614704,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-09","kind":"sale","planned":true,"acquired":false,"shares":4807,"price":76.73,"value":368841.11,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.38 to $77.35, inclusive."}],"balance_after":803808,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614703,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-09","kind":"sale","planned":true,"acquired":false,"shares":11666,"price":75.58,"value":881716.28,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $75.28 to $75.95, inclusive."}],"balance_after":808615,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614702,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-09","kind":"sale","planned":true,"acquired":false,"shares":18934,"price":74.67,"value":1413801.78,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $74.26 to $75.22, inclusive."}],"balance_after":820281,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614701,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-09","kind":"sale","planned":true,"acquired":false,"shares":33493,"price":73.8,"value":2471783.4,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $73.26 to $74.21, inclusive."}],"balance_after":839215,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614700,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-09","kind":"exercise","planned":true,"acquired":true,"shares":70000,"price":1,"value":70000.0,"ownership":{"direct":true},"balance_after":872708,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614699,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-08","kind":"sale","planned":true,"acquired":false,"shares":1500,"price":78.57,"value":117855.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $78.55 to $78.64, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614698,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-08","kind":"sale","planned":true,"acquired":false,"shares":12323,"price":78.08,"value":962179.84,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.52 to $78.48, inclusive."}],"balance_after":804208,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614697,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-08","kind":"sale","planned":true,"acquired":false,"shares":51374,"price":77.15,"value":3963504.1,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.52 to $77.5, inclusive."}],"balance_after":816531,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614696,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-08","kind":"sale","planned":true,"acquired":false,"shares":4803,"price":75.99,"value":364979.97,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.52 to $76.41, inclusive. 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 footnote (2), (3), (4), (5), (6), (7), (8), (9), and (10) to this Form 4."}],"balance_after":867905,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":4614695,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:30:22.000Z","date":"2026-09-08","kind":"exercise","planned":true,"acquired":true,"shares":70000,"price":1,"value":70000.0,"ownership":{"direct":true},"balance_after":872708,"source":{"system":"sec-edgar","filing":"0001140361-26-036191","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1721580/000114036126036191/form4.xml","form_type":"4"}},{"id":714372,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units","published_at":"2026-07-07T01:00:15.000Z","date":"2026-05-13","kind":"grant","planned":false,"acquired":true,"shares":6208,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Sophia Wang, daughter of David H. Wang"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of ACMR common stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"The number of RSUs granted will be determined by dividing the applicable annual grant value by the 30-day lookback average fair market value of the Issuer's common stock, determined to be $51.54 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units vest in four equal annual installments beginning May 13, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units vest in four equal annual installments beginning May 13, 2027."}],"balance_after":6208,"derivative":{"underlying":"Class A Common Stock","underlying_shares":6208},"source":{"system":"sec-edgar","filing":"0001140361-26-027691","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126027691/form4.xml","form_type":"4"}},{"id":747447,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-04","kind":"exercise","planned":true,"acquired":false,"shares":40002,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F13","text":"The option is fully vested and exercisable."}],"balance_after":270000,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":40002},"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747446,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"exercise","planned":true,"acquired":false,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F13","text":"The option is fully vested and exercisable."}],"balance_after":310002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747445,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-04","kind":"sale","planned":true,"acquired":false,"shares":826,"price":87.91,"value":72613.66,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F12","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $87.77 to $88.01, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747444,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-04","kind":"sale","planned":true,"acquired":false,"shares":8581,"price":87.13,"value":747662.53,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F11","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $86.73 to $87.66, inclusive."}],"balance_after":803534,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747443,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-04","kind":"sale","planned":true,"acquired":false,"shares":10992,"price":86.07,"value":946081.44,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $85.7 to $86.57, inclusive."}],"balance_after":812115,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747442,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-04","kind":"sale","planned":true,"acquired":false,"shares":17543,"price":85.11,"value":1493084.73,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $84.62 to $85.6, inclusive."}],"balance_after":823107,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747441,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-04","kind":"sale","planned":true,"acquired":false,"shares":2060,"price":83.86,"value":172751.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $83.61 to $84.24, inclusive."}],"balance_after":840650,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747440,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-04","kind":"exercise","planned":true,"acquired":true,"shares":40002,"price":1,"value":40002.0,"ownership":{"direct":true},"balance_after":842710,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747439,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":1187,"price":93.04,"value":110438.48,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $93.02 to $93.39, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747438,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":5843,"price":92.38,"value":539776.34,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $92.01 to $92.8, inclusive."}],"balance_after":803895,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747437,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":9925,"price":90.78,"value":900991.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $90.24 to $91.22, inclusive."}],"balance_after":809738,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747436,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":32450,"price":89.84,"value":2915308.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.24 to $90.22, inclusive."}],"balance_after":819663,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747435,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":6295,"price":88.98,"value":560129.1,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.24 to $89.22, inclusive."}],"balance_after":852113,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747434,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":4300,"price":87.57,"value":376551.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.22 to $88.04, inclusive. 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 footnote (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), and (12) to this Form 4."}],"balance_after":858408,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":747433,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-06-05T20:30:29.000Z","date":"2026-06-03","kind":"exercise","planned":true,"acquired":true,"shares":60000,"price":1,"value":60000.0,"ownership":{"direct":true},"balance_after":862708,"source":{"system":"sec-edgar","filing":"0001140361-26-024280","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126024280/form4.xml","form_type":"4"}},{"id":843487,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-12","kind":"exercise","planned":true,"acquired":false,"shares":50000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The option is fully vested and exercisable."}],"balance_after":370002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843486,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-11","kind":"exercise","planned":true,"acquired":false,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The option is fully vested and exercisable."}],"balance_after":420002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843485,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-12","kind":"sale","planned":true,"acquired":false,"shares":702,"price":46.57,"value":32692.14,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $46.45 to $46.59, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843484,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-12","kind":"sale","planned":true,"acquired":false,"shares":38737,"price":45.74,"value":1771830.38,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.40 to $46.39, inclusive."}],"balance_after":803410,"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843483,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-12","kind":"sale","planned":true,"acquired":false,"shares":10561,"price":44.92,"value":474400.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $44.40 to $45.39, inclusive."}],"balance_after":842147,"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843482,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-12","kind":"exercise","planned":true,"acquired":true,"shares":50000,"price":1,"value":50000.0,"ownership":{"direct":true},"balance_after":852708,"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843481,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-11","kind":"sale","planned":true,"acquired":false,"shares":4627,"price":48.34,"value":223669.18,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.23 to $48.61, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843480,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-11","kind":"sale","planned":true,"acquired":false,"shares":55373,"price":47.89,"value":2651812.97,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.23 to $48.22, inclusive. 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 footnote (2), (3), (4), (5), and (6) to this Form 4."}],"balance_after":807335,"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":843479,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2026-03-13T20:46:00.000Z","date":"2026-03-11","kind":"exercise","planned":true,"acquired":true,"shares":60000,"price":1,"value":60000.0,"ownership":{"direct":true},"balance_after":862708,"source":{"system":"sec-edgar","filing":"0001140361-26-009401","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126009401/form4.xml","form_type":"4"}},{"id":915687,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2026-02-06T21:30:18.000Z","date":"2026-02-04","kind":"grant","planned":false,"acquired":true,"shares":545400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On March 20, 2020, the reporting person was granted options to purchase an aggregate of 1,636,197 shares of the Issuer's Class A common stock, based on the satisfaction of certain performance criteria. In general, one-third of the shares subject to the options vest and become exercisable upon an increase in the Issuer's market capitalization (calculated as described in footnote 2) of $1 billion, $2 billion and $3 billion, respectively, from the market capitalization of $553,383,586 on the date of grant. 545,400 shares vested and became exercisable on February 4, 2026, which was the first trading day as of which the Issuer's market capitalization equaled or exceeded $3,553,383,586."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"For purposes of the options, the market capitalization as of a specified trading day is calculated by multiplying (a) the average of the daily volume-weighted average price per share of the Issuer's Class A common stock for each of the trading days occurring during the thirty calendar day period ending on that specified trading day by (b) the total number of issued and outstanding shares of the Issuer's Class A and Class B common stock as of 11:59 p.m. (Eastern time) on such specified trading day."}],"balance_after":1636197,"derivative":{"exercise_price":7.36,"expiration_date":"2030-03-19","underlying":"Class A Common Stock","underlying_shares":545400},"source":{"system":"sec-edgar","filing":"0001140361-26-004200","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126004200/form4.xml","form_type":"4"}},{"id":978658,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-04","kind":"exercise","planned":true,"acquired":false,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The option is fully vested and exercisable."}],"balance_after":480002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":978657,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-03","kind":"exercise","planned":true,"acquired":false,"shares":70000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The option is fully vested and exercisable."}],"balance_after":540002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":70000},"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":978656,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-04","kind":"sale","planned":true,"acquired":false,"shares":40183,"price":34.42,"value":1383098.86,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $34.18 to $34.63, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":978655,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-04","kind":"sale","planned":true,"acquired":false,"shares":19817,"price":33.52,"value":664265.84,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $33.07 to $34.04, inclusive."}],"balance_after":842891,"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":978654,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-04","kind":"exercise","planned":true,"acquired":true,"shares":60000,"price":1,"value":60000.0,"ownership":{"direct":true},"balance_after":862708,"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":978653,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-03","kind":"sale","planned":true,"acquired":false,"shares":1200,"price":33.56,"value":40272.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $33.53 to $33.59, inclusive."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":978652,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-03","kind":"sale","planned":true,"acquired":false,"shares":68800,"price":33.05,"value":2273840.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.51 to $33.48, inclusive. 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 footnote (2), (3), (4), and (5) to this Form 4."}],"balance_after":803908,"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":978651,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-12-05T21:30:35.000Z","date":"2025-12-03","kind":"exercise","planned":true,"acquired":true,"shares":70000,"price":1,"value":70000.0,"ownership":{"direct":true},"balance_after":872708,"source":{"system":"sec-edgar","filing":"0001140361-25-044559","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125044559/form4.xml","form_type":"4"}},{"id":1011773,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-10-30T01:30:12.000Z","date":"2025-10-27","kind":"grant","planned":false,"acquired":true,"shares":545400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On March 20, 2020, the reporting person was granted options to purchase an aggregate of 1,636,197 shares of the Issuer's Class A common stock, based on the satisfaction of certain performance criteria. In general, one-third of the shares subject to the options vest and become exercisable upon an increase in the Issuer's market capitalization (calculated as described in footnote 2) of $1 billion, $2 billion and $3 billion, respectively, from the market capitalization of $553,383,586 on the date of grant. 545,400 shares vested and became exercisable on October 27, 2025, which was the first trading day as of which the Issuer's market capitalization equaled or exceeded $2,553,383,586. The remaining shares will vest and become exercise upon the first trading days, if any, on which the Issuer's market capitalization equals or exceeds $3,553,383,586."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"For purposes of the options, the market capitalization as of a specified trading day is calculated by multiplying (a) the average of the daily volume-weighted average price per share of the Issuer's Class A common stock for each of the trading days occurring during the thirty calendar day period ending on that specified trading day by (b) the total number of issued and outstanding shares of the Issuer's Class A and Class B common stock as of 11:59 p.m. (Eastern time) on such specified trading day."}],"balance_after":545400,"derivative":{"exercise_price":7.36,"expiration_date":"2030-03-19","underlying":"Class A Common Stock","underlying_shares":545400},"source":{"system":"sec-edgar","filing":"0001140361-25-039758","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125039758/form4.xml","form_type":"4"}},{"id":1030345,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-10-01T01:33:03.000Z","date":"2025-09-08","kind":"exercise","planned":false,"acquired":false,"shares":130000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 8, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 130,000 shares of Class A Common Stock of the Issuer."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option is fully vested and exercisable."}],"balance_after":610002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":130000},"source":{"system":"sec-edgar","filing":"0001140361-25-036835","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125036835/form4.xml","form_type":"4"}},{"id":1030344,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-10-01T01:33:03.000Z","date":"2025-09-08","kind":"exercise","planned":false,"acquired":true,"shares":130000,"price":1,"value":130000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On September 8, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 130,000 shares of Class A Common Stock of the Issuer."}],"balance_after":802708,"source":{"system":"sec-edgar","filing":"0001140361-25-036835","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125036835/form4.xml","form_type":"4"}},{"id":1046638,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-09-05T20:30:33.000Z","date":"2025-09-04","kind":"exercise","planned":true,"acquired":false,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option is fully vested and exercisable."}],"balance_after":740002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001140361-25-034208","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125034208/form4.xml","form_type":"4"}},{"id":1046637,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-09-05T20:30:33.000Z","date":"2025-09-03","kind":"exercise","planned":true,"acquired":false,"shares":70000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option is fully vested and exercisable."}],"balance_after":800002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":70000},"source":{"system":"sec-edgar","filing":"0001140361-25-034208","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125034208/form4.xml","form_type":"4"}},{"id":1046636,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-09-05T20:30:33.000Z","date":"2025-09-04","kind":"sale","planned":true,"acquired":false,"shares":60000,"price":26.44,"value":1586400.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.14 to $26.68, inclusive."}],"balance_after":672708,"source":{"system":"sec-edgar","filing":"0001140361-25-034208","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125034208/form4.xml","form_type":"4"}},{"id":1046635,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-09-05T20:30:33.000Z","date":"2025-09-04","kind":"exercise","planned":true,"acquired":true,"shares":60000,"price":1,"value":60000.0,"ownership":{"direct":true},"balance_after":732708,"source":{"system":"sec-edgar","filing":"0001140361-25-034208","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125034208/form4.xml","form_type":"4"}},{"id":1046634,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-09-05T20:30:33.000Z","date":"2025-09-03","kind":"sale","planned":true,"acquired":false,"shares":3943,"price":27.31,"value":107683.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.29 to $27.33, inclusive."}],"balance_after":672708,"source":{"system":"sec-edgar","filing":"0001140361-25-034208","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125034208/form4.xml","form_type":"4"}},{"id":1046633,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-09-05T20:30:33.000Z","date":"2025-09-03","kind":"sale","planned":true,"acquired":false,"shares":66057,"price":26.73,"value":1765703.61,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.25 to $27.19, inclusive. 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 footnote (2), (3), and (4) to this Form 4."}],"balance_after":676651,"source":{"system":"sec-edgar","filing":"0001140361-25-034208","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125034208/form4.xml","form_type":"4"}},{"id":1046632,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-09-05T20:30:33.000Z","date":"2025-09-03","kind":"exercise","planned":true,"acquired":true,"shares":70000,"price":1,"value":70000.0,"ownership":{"direct":true},"balance_after":742708,"source":{"system":"sec-edgar","filing":"0001140361-25-034208","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125034208/form4.xml","form_type":"4"}},{"id":1134768,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-05-23T20:35:16.000Z","date":"2025-05-22","kind":"exercise","planned":true,"acquired":false,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option is fully vested and exercisable."}],"balance_after":870002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001140361-25-020348","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125020348/form4.xml","form_type":"4"}},{"id":1134767,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-05-23T20:35:16.000Z","date":"2025-05-21","kind":"exercise","planned":true,"acquired":false,"shares":70000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option is fully vested and exercisable."}],"balance_after":930002,"derivative":{"exercise_price":1,"expiration_date":"2026-12-27","underlying":"Class A Common Stock","underlying_shares":70000},"source":{"system":"sec-edgar","filing":"0001140361-25-020348","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125020348/form4.xml","form_type":"4"}},{"id":1134766,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-05-23T20:35:16.000Z","date":"2025-05-22","kind":"sale","planned":true,"acquired":false,"shares":60000,"price":22.63,"value":1357800.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.43 to $22.99, inclusive."}],"balance_after":672708,"source":{"system":"sec-edgar","filing":"0001140361-25-020348","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125020348/form4.xml","form_type":"4"}},{"id":1134765,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-05-23T20:35:16.000Z","date":"2025-05-22","kind":"exercise","planned":true,"acquired":true,"shares":60000,"price":1,"value":60000.0,"ownership":{"direct":true},"balance_after":732708,"source":{"system":"sec-edgar","filing":"0001140361-25-020348","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125020348/form4.xml","form_type":"4"}},{"id":1134764,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-05-23T20:35:16.000Z","date":"2025-05-21","kind":"sale","planned":true,"acquired":false,"shares":8,"price":24.04,"value":192.32,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $24.00 to $24.04, inclusive."}],"balance_after":672708,"source":{"system":"sec-edgar","filing":"0001140361-25-020348","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125020348/form4.xml","form_type":"4"}},{"id":1134763,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-05-23T20:35:16.000Z","date":"2025-05-21","kind":"sale","planned":true,"acquired":false,"shares":69992,"price":23.6,"value":1651811.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $23.00 to $23.99, inclusive. 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 footnote (2), (3), and (4) to this Form 4."}],"balance_after":672716,"source":{"system":"sec-edgar","filing":"0001140361-25-020348","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125020348/form4.xml","form_type":"4"}},{"id":1134762,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-05-23T20:35:16.000Z","date":"2025-05-21","kind":"exercise","planned":true,"acquired":true,"shares":70000,"price":1,"value":70000.0,"ownership":{"direct":true},"balance_after":742708,"source":{"system":"sec-edgar","filing":"0001140361-25-020348","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125020348/form4.xml","form_type":"4"}},{"id":1207371,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-03-14T01:30:32.000Z","date":"2025-03-13","kind":"sale","planned":true,"acquired":false,"shares":1019,"price":27.65,"value":28175.35,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.64 to $27.66, inclusive."}],"balance_after":672708,"source":{"system":"sec-edgar","filing":"0001140361-25-008688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125008688/form4.xml","form_type":"4"}},{"id":1207370,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-03-14T01:30:32.000Z","date":"2025-03-13","kind":"sale","planned":true,"acquired":false,"shares":36481,"price":27.29,"value":995566.49,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.64 to $27.62, inclusive."}],"balance_after":673727,"source":{"system":"sec-edgar","filing":"0001140361-25-008688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125008688/form4.xml","form_type":"4"}},{"id":1207369,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-03-14T01:30:32.000Z","date":"2025-03-12","kind":"sale","planned":true,"acquired":false,"shares":37500,"price":27.42,"value":1028250.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.05 to $27.97, inclusive."}],"balance_after":710208,"source":{"system":"sec-edgar","filing":"0001140361-25-008688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125008688/form4.xml","form_type":"4"}},{"id":1207368,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-03-14T01:30:32.000Z","date":"2025-03-11","kind":"sale","planned":true,"acquired":false,"shares":56250,"price":26.57,"value":1494562.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.35 to $27.00, inclusive. 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 footnote (2), (3), (4), and (5) to this Form 4."}],"balance_after":747708,"source":{"system":"sec-edgar","filing":"0001140361-25-008688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125008688/form4.xml","form_type":"4"}},{"id":1221502,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2025-03-05T21:30:27.000Z","date":"2025-03-03","kind":"exercise","planned":false,"acquired":false,"shares":210000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On March 3, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 210,000 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 4,048 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 February 28, 2025 of $25.94, and issuing to the reporting person the remaining 205,952 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":0.5,"expiration_date":"2025-04-30","underlying":"Class A Common Stock","underlying_shares":210000},"source":{"system":"sec-edgar","filing":"0001140361-25-007209","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125007209/form4.xml","form_type":"4"}},{"id":1221501,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-03-05T21:30:27.000Z","date":"2025-03-03","kind":"tax_withholding","planned":false,"acquired":false,"shares":4048,"price":25.94,"value":105005.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On March 3, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 210,000 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 4,048 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 February 28, 2025 of $25.94, and issuing to the reporting person the remaining 205,952 shares of Class A Common Stock."}],"balance_after":803958,"source":{"system":"sec-edgar","filing":"0001140361-25-007209","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125007209/form4.xml","form_type":"4"}},{"id":1221500,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2025-03-05T21:30:27.000Z","date":"2025-03-03","kind":"exercise","planned":false,"acquired":true,"shares":210000,"price":0.5,"value":105000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On March 3, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 210,000 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 4,048 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 February 28, 2025 of $25.94, and issuing to the reporting person the remaining 205,952 shares of Class A Common Stock."}],"balance_after":808006,"source":{"system":"sec-edgar","filing":"0001140361-25-007209","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125007209/form4.xml","form_type":"4"}},{"id":1344355,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-12-03T21:30:19.000Z","date":"2024-11-29","kind":"sale","planned":true,"acquired":false,"shares":56250,"price":17.44,"value":981000.0,"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 on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.12 to $17.65, inclusive. 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 footnote (2) to this Form 4."}],"balance_after":598006,"source":{"system":"sec-edgar","filing":"0001140361-24-048306","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124048306/form4.xml","form_type":"4"}},{"id":1348099,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-11-29T21:30:11.000Z","date":"2024-11-26","kind":"sale","planned":true,"acquired":false,"shares":9484,"price":18.31,"value":173652.04,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $18.23 to $18.39, inclusive."}],"balance_after":654256,"source":{"system":"sec-edgar","filing":"0001140361-24-048076","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124048076/form4.xml","form_type":"4"}},{"id":1348098,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-11-29T21:30:11.000Z","date":"2024-11-26","kind":"sale","planned":true,"acquired":false,"shares":46766,"price":17.8,"value":832434.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.23 to $18.22, inclusive. 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 footnote (2) and (3) to this Form 4."}],"balance_after":663740,"source":{"system":"sec-edgar","filing":"0001140361-24-048076","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124048076/form4.xml","form_type":"4"}},{"id":1350532,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-11-26T21:30:30.000Z","date":"2024-11-22","kind":"sale","planned":true,"acquired":false,"shares":56250,"price":19.08,"value":1073250.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $18.80 to $19.29, inclusive. 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 footnote (2) to this Form 4."}],"balance_after":710506,"source":{"system":"sec-edgar","filing":"0001140361-24-047887","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124047887/form4.xml","form_type":"4"}},{"id":1361290,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2024-11-18T21:30:17.000Z","date":"2024-11-14","kind":"exercise","planned":false,"acquired":true,"shares":270000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 270,000 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 7,262 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 November 13, 2024 of $18.59, and issuing to the reporting person the remaining 262,738 shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option is fully vested and exercisable."}],"balance_after":210000,"derivative":{"exercise_price":0.5,"expiration_date":"2025-04-30","underlying":"Class A Common Stock","underlying_shares":270000},"source":{"system":"sec-edgar","filing":"0001140361-24-047168","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124047168/form4.xml","form_type":"4"}},{"id":1361289,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-11-18T21:30:17.000Z","date":"2024-11-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":7262,"price":18.59,"value":135000.58,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 270,000 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 7,262 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 November 13, 2024 of $18.59, and issuing to the reporting person the remaining 262,738 shares of Class A Common Stock."}],"balance_after":766756,"source":{"system":"sec-edgar","filing":"0001140361-24-047168","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124047168/form4.xml","form_type":"4"}},{"id":1361288,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-11-18T21:30:17.000Z","date":"2024-11-14","kind":"exercise","planned":false,"acquired":true,"shares":270000,"price":0.5,"value":135000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 270,000 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 7,262 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 November 13, 2024 of $18.59, and issuing to the reporting person the remaining 262,738 shares of Class A Common Stock."}],"balance_after":774018,"source":{"system":"sec-edgar","filing":"0001140361-24-047168","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124047168/form4.xml","form_type":"4"}},{"id":1496285,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-05-31T20:30:26.000Z","date":"2024-05-29","kind":"sale","planned":true,"acquired":false,"shares":41090,"price":22.62,"value":929455.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.42 to $23.05, inclusive."}],"balance_after":504018,"source":{"system":"sec-edgar","filing":"0001140361-24-028376","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124028376/form4.xml","form_type":"4"}},{"id":1496284,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-05-31T20:30:26.000Z","date":"2024-05-29","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":22.62,"value":1017900.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.42 to $23.04, inclusive. 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":545108,"source":{"system":"sec-edgar","filing":"0001140361-24-028376","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124028376/form4.xml","form_type":"4"}},{"id":1501471,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-05-24T20:30:35.000Z","date":"2024-05-22","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":22.81,"value":1026450.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.48 to $23.31, inclusive."}],"balance_after":590108,"source":{"system":"sec-edgar","filing":"0001140361-24-027456","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124027456/form4.xml","form_type":"4"}},{"id":1501470,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-05-24T20:30:35.000Z","date":"2024-05-22","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":22.81,"value":1026450.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.47 to $23.31, inclusive. 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":635108,"source":{"system":"sec-edgar","filing":"0001140361-24-027456","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124027456/form4.xml","form_type":"4"}},{"id":1513774,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2024-05-16T13:00:37.000Z","date":"2024-05-14","kind":"exercise","planned":false,"acquired":false,"shares":180000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 3,910 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 May 13, 2024 of $23.02, and issuing to the reporting person the remaining 176,090 shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option is fully vested and exercisable."}],"balance_after":480000,"derivative":{"exercise_price":0.5,"expiration_date":"2025-04-30","underlying":"Class A Common Stock","underlying_shares":180000},"source":{"system":"sec-edgar","filing":"0001140361-24-026365","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124026365/form4.xml","form_type":"4"}},{"id":1513773,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-05-16T13:00:37.000Z","date":"2024-05-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":3910,"price":23.02,"value":90008.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 3,910 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 May 13, 2024 of $23.02, and issuing to the reporting person the remaining 176,090 shares of Class A Common Stock."}],"balance_after":680108,"source":{"system":"sec-edgar","filing":"0001140361-24-026365","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124026365/form4.xml","form_type":"4"}},{"id":1513772,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-05-16T13:00:37.000Z","date":"2024-05-14","kind":"exercise","planned":false,"acquired":true,"shares":180000,"price":0.5,"value":90000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 3,910 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 May 13, 2024 of $23.02, and issuing to the reporting person the remaining 176,090 shares of Class A Common Stock."}],"balance_after":684018,"source":{"system":"sec-edgar","filing":"0001140361-24-026365","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124026365/form4.xml","form_type":"4"}},{"id":1574217,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-03-16T01:32:10.000Z","date":"2024-03-14","kind":"sale","planned":true,"acquired":false,"shares":10611,"price":28.38,"value":301140.18,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.10 to $28.53, inclusive."}],"balance_after":504018,"source":{"system":"sec-edgar","filing":"0001140361-24-013647","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124013647/form4.xml","form_type":"4"}},{"id":1574216,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-03-16T01:32:10.000Z","date":"2024-03-14","kind":"sale","planned":true,"acquired":false,"shares":76478,"price":27.51,"value":2103909.78,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.01 to $27.97, inclusive. 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":514629,"source":{"system":"sec-edgar","filing":"0001140361-24-013647","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124013647/form4.xml","form_type":"4"}},{"id":1580109,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-03-13T01:30:30.000Z","date":"2024-03-08","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":30.35,"value":1365750.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.06 to $30.74, inclusive."}],"balance_after":591107,"source":{"system":"sec-edgar","filing":"0001140361-24-012895","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124012895/form4.xml","form_type":"4"}},{"id":1580108,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-03-13T01:30:30.000Z","date":"2024-03-08","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":30.36,"value":1366200.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.06 to $30.74, inclusive. 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":636107,"source":{"system":"sec-edgar","filing":"0001140361-24-012895","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124012895/form4.xml","form_type":"4"}},{"id":1593870,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2024-03-06T02:33:15.000Z","date":"2024-03-01","kind":"exercise","planned":false,"acquired":false,"shares":180000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On March 1, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 2,911 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 February 29, 2024 of $30.92, and issuing to the reporting person the remaining 177,089 shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option is fully vested and exercisable."}],"balance_after":660000,"derivative":{"exercise_price":0.5,"expiration_date":"2025-04-30","underlying":"Class A Common Stock","underlying_shares":180000},"source":{"system":"sec-edgar","filing":"0001140361-24-011556","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124011556/form4.xml","form_type":"4"}},{"id":1593869,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-03-06T02:33:15.000Z","date":"2024-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":2911,"price":30.92,"value":90008.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On March 1, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 2,911 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 February 29, 2024 of $30.92, and issuing to the reporting person the remaining 177,089 shares of Class A Common Stock."}],"balance_after":681107,"source":{"system":"sec-edgar","filing":"0001140361-24-011556","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124011556/form4.xml","form_type":"4"}},{"id":1593868,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2024-03-06T02:33:15.000Z","date":"2024-03-01","kind":"exercise","planned":false,"acquired":true,"shares":180000,"price":0.5,"value":90000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On March 1, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 2,911 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 February 29, 2024 of $30.92, and issuing to the reporting person the remaining 177,089 shares of Class A Common Stock."}],"balance_after":684018,"source":{"system":"sec-edgar","filing":"0001140361-24-011556","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036124011556/form4.xml","form_type":"4"}},{"id":1725043,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2023-12-01T21:15:38.000Z","date":"2023-11-29","kind":"sale","planned":true,"acquired":false,"shares":39776,"price":17.13,"value":681362.88,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $16.55 to $17.73, inclusive."}],"balance_after":504018,"source":{"system":"sec-edgar","filing":"0001140361-23-055757","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123055757/form4.xml","form_type":"4"}},{"id":1725042,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2023-12-01T21:15:38.000Z","date":"2023-11-29","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":17.14,"value":771300.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $16.55 to $17.73, inclusive. 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":543794,"source":{"system":"sec-edgar","filing":"0001140361-23-055757","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123055757/form4.xml","form_type":"4"}},{"id":1729340,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2023-11-27T21:30:25.000Z","date":"2023-11-22","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":17.68,"value":795600.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.51 to $18.16, inclusive."}],"balance_after":588794,"source":{"system":"sec-edgar","filing":"0001140361-23-054706","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123054706/form4.xml","form_type":"4"}},{"id":1729339,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2023-11-27T21:30:25.000Z","date":"2023-11-22","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":17.67,"value":795150.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.51 to $18.14, inclusive. 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":633794,"source":{"system":"sec-edgar","filing":"0001140361-23-054706","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123054706/form4.xml","form_type":"4"}},{"id":1738582,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Stock Option","published_at":"2023-11-16T21:15:35.000Z","date":"2023-11-14","kind":"exercise","planned":false,"acquired":false,"shares":180000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 14, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 5,224 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 November 13, 2023 of $17.23, and issuing to the reporting person the remaining 174,776 shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option is fully vested and exercisable"}],"balance_after":840000,"derivative":{"exercise_price":0.5,"expiration_date":"2025-04-30","underlying":"Class A Common Stock","underlying_shares":180000},"source":{"system":"sec-edgar","filing":"0001140361-23-053658","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123053658/form4.xml","form_type":"4"}},{"id":1738581,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2023-11-16T21:15:35.000Z","date":"2023-11-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":5224,"price":17.23,"value":90009.52,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 14, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 5,224 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 November 13, 2023 of $17.23, and issuing to the reporting person the remaining 174,776 shares of Class A Common Stock."}],"balance_after":678794,"source":{"system":"sec-edgar","filing":"0001140361-23-053658","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123053658/form4.xml","form_type":"4"}},{"id":1738580,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2023-11-16T21:15:35.000Z","date":"2023-11-14","kind":"exercise","planned":false,"acquired":true,"shares":180000,"price":0.5,"value":90000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 14, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 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 5,224 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 November 13, 2023 of $17.23, and issuing to the reporting person the remaining 174,776 shares of Class A Common Stock."}],"balance_after":684018,"source":{"system":"sec-edgar","filing":"0001140361-23-053658","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123053658/form4.xml","form_type":"4"}},{"id":1780770,"issuer":{"id":3926,"kind":"organization","name":"ACM Research, Inc.","symbol":"ACMR"},"owners":[{"id":31958,"kind":"person","name":"Wang David H","position":1,"cik":"0001721580","reported_name":"Wang David H","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"See Remarks"}}],"security":"Class A Common Stock","published_at":"2023-09-14T21:00:23.000Z","date":"2023-09-13","kind":"sale","planned":true,"acquired":false,"shares":85116,"price":17.68,"value":1504850.88,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.12 to $18.05, inclusive."}],"balance_after":504018,"source":{"system":"sec-edgar","filing":"0001140361-23-043978","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036123043978/form4.xml","form_type":"4"}}],"next_cursor":"2023-09-14T21:00:23.000000Z,1780770"}