{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-26-021661","form_type":"8-K","ticker":"ACMR","cik":"0001680062","company_name":"ACM Research, Inc.","filed_at":"2026-05-15T20:16:17+00:00","discovered_at":"2026-05-15T20:24:08.302716+00:00","generated_at":"2026-05-15T21:12:14.028627+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"ACM Research closes $150M registered direct offering of 2.88M shares at $52","bullets":["Closed offering of 2,884,615 Class A common shares at $52.00 per share on May 15, 2026.","Net proceeds of approximately $149.85 million after estimated expenses.","Offering previously disclosed on May 12, 2026, under a shelf registration statement."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-26-021661","json":"https://secwatch.observer/filing/0001140361-26-021661.json","markdown":"https://secwatch.observer/filing/0001140361-26-021661.md","text":"https://secwatch.observer/filing/0001140361-26-021661.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126021661/0001140361-26-021661-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1680062/000114036126021661/ef20073887_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T21:12:14.028627+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}