{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-22-019079","form_type":"8-K","ticker":"AWI","cik":"0000007431","company_name":"ARMSTRONG WORLD INDUSTRIES INC","filed_at":"2022-09-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:58.064509+00:00","generated_at":"2026-06-23T06:32:43.777300+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Chairman Larry S. McWilliams to step down from Armstrong World Industries board in 2023","bullets":["McWilliams will not stand for re-election at the 2023 annual shareholder meeting.","He will continue as Chairman of the board until the next annual meeting.","No successor or replacement has been announced at this time."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-22-019079","json":"https://secwatch.observer/filing/0000950170-22-019079.json","markdown":"https://secwatch.observer/filing/0000950170-22-019079.md","text":"https://secwatch.observer/filing/0000950170-22-019079.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/7431/000095017022019079/0000950170-22-019079-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/7431/000095017022019079/awi-20220928.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-23T06:32:43.777300+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":"e31c35d08e","claim":"Larry S. McWilliams departed as Chairman of the board of directors at ARMSTRONG WORLD INDUSTRIES INC.","evidence_excerpt":"On September 28, 2022, Larry S. McWilliams notified the board of directors of Armstrong World Industries, Inc. (the “Company”) that he will not stand for re-election to the Company's board of directors at its next annual shareholder meeting, which will take place in 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/7431/000095017022019079/0000950170-22-019079-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"will not stand for re-election"},{"label":"Role","value":"Chairman of the board of directors"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}