{"schema_version":"secwatch.filing_event.v1","accession":"0001739445-25-000140","form_type":"8-K","ticker":"ACA","cik":"0001739445","company_name":"Arcosa, Inc.","filed_at":"2025-12-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.288963+00:00","generated_at":"2026-05-16T13:04:40.690414+00:00","sec_items":["1.04"],"event_type":"regulatory","sentiment":"negative","materiality_score":0.25,"confidence":"high","headline":"Arcosa receives MSHA 107(a) order at DeRidder, LA aggregate site; terminated quickly, no injuries","bullets":["MSHA issued section 107(a) order on Dec 11, 2025, at Arcosa Aggregates Gulf Coast in DeRidder, Louisiana.","Order concerned a third-party contractor observed walking on a fuel tank without fall protection.","Order terminated shortly after contractor was safely removed; no injuries occurred.","Company took immediate corrective action following the incident."],"urls":{"canonical":"https://secwatch.observer/filing/0001739445-25-000140","json":"https://secwatch.observer/filing/0001739445-25-000140.json","markdown":"https://secwatch.observer/filing/0001739445-25-000140.md","text":"https://secwatch.observer/filing/0001739445-25-000140.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1739445/000173944525000140/0001739445-25-000140-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1739445/000173944525000140/aca-20251211.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T13:04:40.690414+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"}