{"entity":{"type":"insider","cik":"0001721279","url":"/insider/0001721279","json_url":"/insider/0001721279.json","name":"Cheav Sotheara","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":27,"n_filings":13,"first":"2020-09-14","last":"2026-06-05","span_basis":"filed_date"},"name_variants":[{"name":"Cheav Sotheara","source":"filing","n_filings":13,"first_seen":"2020-09-14","last_seen":"2026-06-05"}],"transactions":[{"id":5869917,"accession":"0001140361-26-024322","txn_seq":9,"anchor":"line-9","filing_url":"/filing/0001140361-26-024322","line_url":"/filing/0001140361-26-024322","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5399.0,"shares_display":"5,399","price_per_share":83.17930542693091,"price_display":"83.18","price_state":"stated","total_value":449085.07,"total_display":"449,085.07","total_whole":"449,085","shares_owned_after":103017.0,"shares_owned_after_display":"103,017","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-06-05","filed_date":"2026-06-05","scope":"insider","n_lines":4},{"id":5869910,"accession":"0001140361-26-024322","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001140361-26-024322","line_url":"/filing/0001140361-26-024322","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":13351.0,"shares_display":"13,351","price_per_share":85.15005243052954,"price_display":"85.15","price_state":"stated","total_value":1136838.35,"total_display":"1,136,838.35","total_whole":"1,136,838","shares_owned_after":102841.0,"shares_owned_after_display":"102,841","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-06-04","filed_date":"2026-06-05","scope":"insider","n_lines":3},{"id":4455689,"accession":"0001140361-25-035583","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-25-035583","line_url":"/filing/0001140361-25-035583#line-2","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":35.0,"price_display":"35.00","price_state":"stated","total_value":350000.0,"total_display":"350,000.00","total_whole":"350,000","shares_owned_after":100002.0,"shares_owned_after_display":"100,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-09-18","filed_date":"2025-09-19","scope":"insider"},{"id":4700478,"accession":"0001140361-25-032733","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-25-032733","line_url":"/filing/0001140361-25-032733#line-2","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":11152.0,"shares_display":"11,152","price_per_share":30.0,"price_display":"30.00","price_state":"stated","total_value":334560.0,"total_display":"334,560.00","total_whole":"334,560","shares_owned_after":100002.0,"shares_owned_after_display":"100,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-08-22","filed_date":"2025-08-26","scope":"insider"},{"id":4092185,"accession":"0001140361-25-003749","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001140361-25-003749","line_url":"/filing/0001140361-25-003749#line-3","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":22598.0,"shares_display":"22,598","price_per_share":23.0,"price_display":"23.00","price_state":"stated","total_value":519754.0,"total_display":"519,754.00","total_whole":"519,754","shares_owned_after":100002.0,"shares_owned_after_display":"100,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-02-06","filed_date":"2025-02-10","scope":"insider"},{"id":2242506,"accession":"0001140361-24-013645","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001140361-24-013645","line_url":"/filing/0001140361-24-013645","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":27.885578,"price_display":"27.89","price_state":"stated","total_value":139427.89,"total_display":"139,427.89","total_whole":"139,428","shares_owned_after":102385.0,"shares_owned_after_display":"102,385","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-03-14","filed_date":"2024-03-15","scope":"insider","n_lines":2},{"id":2242493,"accession":"0001140361-24-013645","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001140361-24-013645","line_url":"/filing/0001140361-24-013645#line-1","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":29.09,"price_display":"29.09","price_state":"stated","total_value":145450.0,"total_display":"145,450.00","total_whole":"145,450","shares_owned_after":105002.0,"shares_owned_after_display":"105,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-03-13","filed_date":"2024-03-15","scope":"insider"},{"id":8434242,"accession":"0001140361-23-053443","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001140361-23-053443","line_url":"/filing/0001140361-23-053443#line-3","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":26000.0,"shares_display":"26,000","price_per_share":16.79,"price_display":"16.79","price_state":"stated","total_value":436540.0,"total_display":"436,540.00","total_whole":"436,540","shares_owned_after":110002.0,"shares_owned_after_display":"110,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-11-13","filed_date":"2023-11-15","scope":"insider"},{"id":7915765,"accession":"0001140361-23-029035","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001140361-23-029035","line_url":"/filing/0001140361-23-029035#line-3","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":39000.0,"shares_display":"39,000","price_per_share":10.0,"price_display":"10.00","price_state":"stated","total_value":390000.0,"total_display":"390,000.00","total_whole":"390,000","shares_owned_after":110002.0,"shares_owned_after_display":"110,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-06-06","filed_date":"2023-06-08","scope":"insider"},{"id":6650483,"accession":"0001140361-22-030526","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001140361-22-030526","line_url":"/filing/0001140361-22-030526#line-1","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":17.5,"price_display":"17.50","price_state":"stated","total_value":175000.0,"total_display":"175,000.00","total_whole":"175,000","shares_owned_after":110002.0,"shares_owned_after_display":"110,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-08-18","filed_date":"2022-08-22","scope":"insider"},{"id":6859773,"accession":"0001140361-22-030318","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001140361-22-030318","line_url":"/filing/0001140361-22-030318","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15000.0,"shares_display":"15,000","price_per_share":17.806414666666665,"price_display":"17.81","price_state":"stated","total_value":267096.22,"total_display":"267,096.22","total_whole":"267,096","shares_owned_after":125820.0,"shares_owned_after_display":"125,820","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-08-17","filed_date":"2022-08-18","scope":"insider","n_lines":2},{"id":6859762,"accession":"0001140361-22-030318","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-22-030318","line_url":"/filing/0001140361-22-030318#line-2","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":19.42,"price_display":"19.42","price_state":"stated","total_value":97100.0,"total_display":"97,100.00","total_whole":"97,100","shares_owned_after":130002.0,"shares_owned_after_display":"130,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-08-16","filed_date":"2022-08-18","scope":"insider"},{"id":4172634,"accession":"0001140361-21-012488","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001140361-21-012488","line_url":"/filing/0001140361-21-012488#line-3","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":13111.0,"shares_display":"13,111","price_per_share":86.64,"price_display":"86.64","price_state":"stated","total_value":1135937.04,"total_display":"1,135,937.04","total_whole":"1,135,937","shares_owned_after":43334.0,"shares_owned_after_display":"43,334","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-04-09","filed_date":"2021-04-12","scope":"insider"},{"id":4172628,"accession":"0001140361-21-012488","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-21-012488","line_url":"/filing/0001140361-21-012488#line-2","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":88.66,"price_display":"88.66","price_state":"stated","total_value":443300.0,"total_display":"443,300.00","total_whole":"443,300","shares_owned_after":56445.0,"shares_owned_after_display":"56,445","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-04-08","filed_date":"2021-04-12","scope":"insider"},{"id":4519222,"accession":"0001140361-21-008754","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001140361-21-008754","line_url":"/filing/0001140361-21-008754#line-4","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":93.69,"price_display":"93.69","price_state":"stated","total_value":936900.0,"total_display":"936,900.00","total_whole":"936,900","shares_owned_after":43334.0,"shares_owned_after_display":"43,334","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-03-16","filed_date":"2021-03-16","scope":"insider"},{"id":4519215,"accession":"0001140361-21-008754","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-21-008754","line_url":"/filing/0001140361-21-008754#line-2","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":91.67,"price_display":"91.67","price_state":"stated","total_value":916700.0,"total_display":"916,700.00","total_whole":"916,700","shares_owned_after":43334.0,"shares_owned_after_display":"43,334","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-03-15","filed_date":"2021-03-16","scope":"insider"},{"id":3230136,"accession":"0001140361-20-025718","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-20-025718","line_url":"/filing/0001140361-20-025718#line-2","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":9670.0,"shares_display":"9,670","price_per_share":88.07,"price_display":"88.07","price_state":"stated","total_value":851636.9,"total_display":"851,636.90","total_whole":"851,637","shares_owned_after":43334.0,"shares_owned_after_display":"43,334","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-11-13","filed_date":"2020-11-16","scope":"insider"},{"id":3230132,"accession":"0001140361-20-025718","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001140361-20-025718","line_url":"/filing/0001140361-20-025718#line-1","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":88.63,"price_display":"88.63","price_state":"stated","total_value":886300.0,"total_display":"886,300.00","total_whole":"886,300","shares_owned_after":53004.0,"shares_owned_after_display":"53,004","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-11-12","filed_date":"2020-11-16","scope":"insider"},{"id":2706106,"accession":"0001140361-20-020399","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001140361-20-020399","line_url":"/filing/0001140361-20-020399#line-4","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4941.0,"shares_display":"4,941","price_per_share":66.7,"price_display":"66.70","price_state":"stated","total_value":329564.7,"total_display":"329,564.70","total_whole":"329,565","shares_owned_after":43334.0,"shares_owned_after_display":"43,334","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-09-14","filed_date":"2020-09-14","scope":"insider"},{"id":2706096,"accession":"0001140361-20-020399","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-20-020399","line_url":"/filing/0001140361-20-020399#line-2","is_derivative":false,"issuer_cik":"0001680062","issuer_name":"ACM Research, Inc.","issuer_ticker":"ACMR","issuer_name_source":null,"issuer_url":"/issuer/0001680062","owner_cik":"0001721279","owner_name":"Cheav Sotheara","owner_display_name":"Cheav Sotheara","owner_url":"/insider/0001721279","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":60.75,"price_display":"60.75","price_state":"stated","total_value":303750.0,"total_display":"303,750.00","total_whole":"303,750","shares_owned_after":43334.0,"shares_owned_after_display":"43,334","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-09-10","filed_date":"2020-09-14","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":27,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":0,"open_market":true},{"code":"S","label":"Open-market sale","n":27,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":27},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001680062","name":"ACM Research, Inc.","url":"/issuer/0001680062","role":"Officer","n_filings":13,"first_seen":"2020-09-14","last_seen":"2026-06-05"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001721279","retrieved_at":"2026-08-27T11:25:01+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-26","last_ingest":"2026-08-27T05:24:39.644631+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}