{"schema_version":"secwatch.filing_event.v1","accession":"0001558370-23-015932","form_type":"8-K","ticker":"TSEOF","cik":"0001519061","company_name":"Trinseo PLC","filed_at":"2023-09-22T23:59:59+00:00","discovered_at":"2026-05-14T18:03:34.175611+00:00","generated_at":"2026-06-10T09:39:08.117985+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Trinseo appoints Roger Greene as VP, Controller and Principal Accounting Officer","bullets":["Roger Greene named VP, Controller and Principal Accounting Officer, effective Sept 25, 2023.","He succeeds David Stasse (CFO) who served as interim principal accounting officer.","Greene previously served as VP, Chief Audit Executive at Corteva Agriscience.","No family relationships or arrangements with any director or executive officer."],"urls":{"canonical":"https://secwatch.observer/filing/0001558370-23-015932","json":"https://secwatch.observer/filing/0001558370-23-015932.json","markdown":"https://secwatch.observer/filing/0001558370-23-015932.md","text":"https://secwatch.observer/filing/0001558370-23-015932.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1519061/000155837023015932/0001558370-23-015932-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1519061/000155837023015932/tse-20230921x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T09:39:08.117985+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":"aa5dd92bbc","claim":"Roger Greene was appointed as Vice President, Controller and Principal Accounting Officer at Trinseo PLC.","evidence_excerpt":"On September 21, 2023, Trinseo PLC (the “Company”) appointed Roger Greene, age 47, as Vice President, Controller and Principal Accounting Officer of the Company, effective September 25, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1519061/000155837023015932/0001558370-23-015932-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Vice President, Controller and Principal Accounting Officer"}],"fact_type":"executive_change"},{"claim_id":"fc5fc3edfb","claim":"David Stasse changed role as Executive Vice President and Chief Financial Officer at Trinseo PLC.","evidence_excerpt":"David Stasse, the Company’s Executive Vice President and Chief Financial Officer, will no longer serve as interim principal accounting officer following Mr. Greene’s appointment.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1519061/000155837023015932/0001558370-23-015932-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"will no longer serve as interim principal accounting officer"},{"label":"Role","value":"Executive Vice President and Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}