{"schema_version":"secwatch.filing_event.v1","accession":"0001739445-22-000131","form_type":"8-K","ticker":"ACA","cik":"0001739445","company_name":"Arcosa, Inc.","filed_at":"2022-11-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:51.936844+00:00","generated_at":"2026-06-22T07:09:54.157981+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Arcosa director Douglas L. Rock retires effective November 4, 2022","bullets":["Douglas L. Rock notified Arcosa of his retirement from the Board, effective immediately on November 4, 2022.","Mr. Rock's retirement is not due to any disagreement with the Board or the Company.","No replacement director has been announced in this filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001739445-22-000131","json":"https://secwatch.observer/filing/0001739445-22-000131.json","markdown":"https://secwatch.observer/filing/0001739445-22-000131.md","text":"https://secwatch.observer/filing/0001739445-22-000131.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1739445/000173944522000131/0001739445-22-000131-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1739445/000173944522000131/aca-20221104.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-22T07:09:54.157981+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":"11e5aad952","claim":"Douglas L. Rock retired as Director at Arcosa, Inc..","evidence_excerpt":"On November 4, 2022, Douglas L. Rock notified Arcosa, Inc. (the \"Company\") of his retirement as a director and member of the Board of Directors (the \"Board\"), effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1739445/000173944522000131/0001739445-22-000131-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"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"}