{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-112859","form_type":"8-K","ticker":"TREX","cik":"0001069878","company_name":"TREX CO INC","filed_at":"2023-04-24T23:59:59+00:00","discovered_at":"2026-05-14T18:03:37.849460+00:00","generated_at":"2026-06-16T18:19:30.160196+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Trex appoints Melkeya McDuffie as independent director, filling board vacancy","bullets":["Appointed Melkeya McDuffie as independent director effective April 24, 2023.","McDuffie is EVP & CHRO of Clean Harbors (NYSE:CLH) with prior HR roles at Waste Management, HSBC, Quest Diagnostics.","She will serve on Audit and Compensation Committees; initial equity grant on May 4, 2023.","Board now has ten directors, eight independent; McDuffie will stand for election at 2024 annual meeting."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-112859","json":"https://secwatch.observer/filing/0001193125-23-112859.json","markdown":"https://secwatch.observer/filing/0001193125-23-112859.md","text":"https://secwatch.observer/filing/0001193125-23-112859.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1069878/000119312523112859/0001193125-23-112859-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1069878/000119312523112859/d24485d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-16T18:19:30.160196+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":"526f0f0b3f","claim":"Melkeya McDuffie was appointed as director at TREX CO INC.","evidence_excerpt":"On April 24, 2023, the Board of Directors of Trex Company, Inc. (Company) appointed Melkeya McDuffie as a director to the board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1069878/000119312523112859/0001193125-23-112859-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}