{"filing":{"accession_number":"0001140361-26-023310","cik":"0001680062","ticker":"ACMR","company_name":"ACM Research, Inc.","form":"8-K","filing_date":"2026-05-29","report_date":null,"primary_document":"ef20075131_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126023310/ef20075131_8k.htm"},"events":[{"id":8066,"run_id":7081,"accession_number":"0001140361-26-023310","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.85,"summary":"ACM Shanghai's board approved a proposal for an H Share Listing on the Hong Kong Stock Exchange, involving issuance of up to 7% of total issued share capital with potential 15% over-allotment. This constitutes a material capital-raising and structural transaction that would affect the company's capitalization and ownership structure. While subject to shareholder and regulatory approval, the board's approval of the offering plan and listing proposal represents a significant M\u0026A-adjacent activity requiring disclosure under Item 8.01.","company_name":"ACM Research, Inc.","ticker":"ACMR","filing_date":"2026-05-29","form":"8-K","submitted_at":null,"items":[{"id":2632,"accession_number":"0001140361-26-023310","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"ACM Shanghai's board approved a proposal for an H Share Listing on the Hong Kong Stock Exchange, involving issuance of up to 7% of total issued share capital with potential 15% over-allotment. This constitutes a material capital-raising and structural transaction that would affect the company's capitalization and ownership structure. While subject to shareholder and regulatory approval, the board's approval of the offering plan and listing proposal represents a significant M\u0026A-adjacent activity requiring disclosure under Item 8.01.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-30T02:08:08.035030+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":2632,"accession_number":"0001140361-26-023310","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"ACM Shanghai's board approved a proposal for an H Share Listing on the Hong Kong Stock Exchange, involving issuance of up to 7% of total issued share capital with potential 15% over-allotment. This constitutes a material capital-raising and structural transaction that would affect the company's capitalization and ownership structure. While subject to shareholder and regulatory approval, the board's approval of the offering plan and listing proposal represents a significant M\u0026A-adjacent activity requiring disclosure under Item 8.01.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-30T02:08:08.035030+00:00","company_name":"ACM Research, Inc.","ticker":"ACMR","filing_date":"2026-05-29"}]}