{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-124274","form_type":"8-K","ticker":"BLDR","cik":"0001316835","company_name":"Builders FirstSource, Inc.","filed_at":"2024-11-12T23:59:59+00:00","discovered_at":"2026-05-14T18:03:08.063331+00:00","generated_at":"2026-05-30T01:37:09.152584+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Builders FirstSource appoints Matt Trester as principal accounting officer","bullets":["Matt Trester appointed principal accounting officer effective November 6, 2024.","Trester previously served as Vice President and Controller since 2022.","He brings accounting and controls experience from prior roles including Director of Accounting."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-124274","json":"https://secwatch.observer/filing/0000950170-24-124274.json","markdown":"https://secwatch.observer/filing/0000950170-24-124274.md","text":"https://secwatch.observer/filing/0000950170-24-124274.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1316835/000095017024124274/0000950170-24-124274-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1316835/000095017024124274/bldr-20241106.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T01:37:09.152584+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":"888ffaa9d9","claim":"Matt Trester was appointed as principal accounting officer at Builders FirstSource, Inc..","evidence_excerpt":"Builders FirstSource, Inc. (the “Company”) has appointed Matt Trester, the Company’s current Vice President and Controller, as its principal accounting officer, effective November 6, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1316835/000095017024124274/0000950170-24-124274-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"principal accounting officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}