secwatch.observer — SEC 8-K summary ====================================== Issuer: Arcosa, Inc. (ACA) CIK: 0001739445 Form: 8-K Filed at: 2021-12-10T23:59:59+00:00 Accession: 0001739445-21-000159 Event type: leadership Sentiment: positive Materiality: 0.40 Item codes: 5.02, 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Arcosa elects Julie Piggott, former BNSF CFO, as independent director; board expands to 10 -------------------------------------------------------------------------------- - Julie Piggott elected independent director effective Dec 9, 2021; serves on Audit Committee. - Piggott was EVP and CFO of BNSF Railway (2014–2021) with over 30 years of finance experience. - Board expanded from 9 to 10 members with her election. - Awarded 984 RSUs (pro-rata 2021 non-employee director grant) vesting in one year. - Independence affirmed under NYSE and SEC rules; no related-party transactions reported. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1739445/000173944521000159/0001739445-21-000159-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1739445/000173944521000159/aca-20211209.htm HTML page: https://secwatch.observer/filing/0001739445-21-000159 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer