secwatch.observer — SEC 8-K summary ====================================== Issuer: Arcosa, Inc. (ACA) CIK: 0001739445 Form: 8-K Filed at: 2021-09-23T23:59:59+00:00 Accession: 0001739445-21-000130 Event type: leadership Sentiment: neutral Materiality: 0.20 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 Director David W. Biegler retires from Arcosa Board --------------------------------------------------- - David W. Biegler retired as director effective September 21, 2021. - Retirement not due to disagreement with the Board or Company. - No replacement director announced. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1739445/000173944521000130/0001739445-21-000130-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1739445/000173944521000130/aca-20210921.htm HTML page: https://secwatch.observer/filing/0001739445-21-000130 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer