{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-25-014761","form_type":"8-K","ticker":"ACMR","cik":"0001680062","company_name":"ACM Research, Inc.","filed_at":"2025-04-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:49.313278+00:00","generated_at":"2026-05-23T10:21:55.734099+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"ACM Research director Chenming C. Hu will not seek reelection at 2025 annual meeting","bullets":["Dr. Hu notified the Board on April 18, 2025 of his decision not to stand for reelection.","He will continue serving as director until the 2025 Annual Meeting of Stockholders.","His decision was not due to any disagreement with ACM Research's operations, policies, or practices."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-25-014761","json":"https://secwatch.observer/filing/0001140361-25-014761.json","markdown":"https://secwatch.observer/filing/0001140361-25-014761.md","text":"https://secwatch.observer/filing/0001140361-25-014761.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125014761/0001140361-25-014761-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125014761/ef20047712_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T10:21:55.734099+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":[{"claim_id":"350b7c94d2","claim":"Chenming C. Hu departed as Director at ACM Research, Inc..","evidence_excerpt":"provided the Board with notice of his intent not to stand for reelection to the Board at the 2025 Annual Meeting of Stockholders.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1680062/000114036125014761/0001140361-25-014761-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"not stand for reelection"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}