{"filing":{"accession_number":"0001193125-26-259521","cik":"0001316835","ticker":"BLDR","company_name":"Builders FirstSource, Inc.","form":"8-K","filing_date":"2026-06-05","report_date":null,"primary_document":"bldr-20260603.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1316835/000119312526259521/bldr-20260603.htm"},"events":[{"id":3740,"run_id":3280,"accession_number":"0001193125-26-259521","anchor_item_number":"5.02","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"summary":"Mark A. Alexander's resignation from the Board of Directors of Builders FirstSource, Inc., effective immediately on June 3, 2026, constitutes a director departure. The filing explicitly states the resignation was due to health reasons and clarifies there was no disagreement with the Company. Director changes are material events affecting the composition and governance of the registrant.","company_name":"Builders FirstSource, Inc.","ticker":"BLDR","filing_date":"2026-06-05","items":[{"id":4749,"accession_number":"0001193125-26-259521","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"Mark A. Alexander's resignation from the Board of Directors of Builders FirstSource, Inc., effective immediately on June 3, 2026, constitutes a director departure. The filing explicitly states the resignation was due to health reasons and clarifies there was no disagreement with the Company. Director changes are material events affecting the composition and governance of the registrant.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T20:06:16.601254+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":4749,"accession_number":"0001193125-26-259521","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"Mark A. Alexander's resignation from the Board of Directors of Builders FirstSource, Inc., effective immediately on June 3, 2026, constitutes a director departure. The filing explicitly states the resignation was due to health reasons and clarifies there was no disagreement with the Company. Director changes are material events affecting the composition and governance of the registrant.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T20:06:16.601254+00:00","company_name":"Builders FirstSource, Inc.","ticker":"BLDR","filing_date":"2026-06-05"}]}