{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-22-004277","form_type":"8-K","ticker":"WST","cik":"0000105770","company_name":"WEST PHARMACEUTICAL SERVICES INC","filed_at":"2022-02-28T23:59:59+00:00","discovered_at":"2026-05-14T18:04:05.288224+00:00","generated_at":"2026-06-27T03:24:21.009456+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Chairman Patrick Zenner to retire; CEO Eric Green becomes Chair; Lead Independent Director appointed","bullets":["Patrick Zenner to retire from Board at May 24, 2022 Annual Meeting after 20 years; no disagreement with Company.","President & CEO Eric M. Green will succeed Zenner as Chairman of the Board.","Paolo Pucci appointed Lead Independent Director, effective at the Annual Meeting.","Roles of Chair and CEO combined; Pucci will liaise between Green and Board."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-22-004277","json":"https://secwatch.observer/filing/0001628280-22-004277.json","markdown":"https://secwatch.observer/filing/0001628280-22-004277.md","text":"https://secwatch.observer/filing/0001628280-22-004277.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/105770/000162828022004277/0001628280-22-004277-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/105770/000162828022004277/wst-20220222.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T03:24:21.009456+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":"187c14a9e0","claim":"Patrick Zenner departed as Chairman of the Board at WEST PHARMACEUTICAL SERVICES INC.","evidence_excerpt":"Patrick Zenner informed West Pharmaceutical Services, Inc. (the “Company”) on February 22, 2022, of his intention to retire and not to stand for re-election as Chairman to the Company’s Board of Directors","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/105770/000162828022004277/0001628280-22-004277-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire and not stand for re-election"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"},{"claim_id":"8871f23da8","claim":"Paolo Pucci was appointed as Lead Independent Director at WEST PHARMACEUTICAL SERVICES INC.","evidence_excerpt":"West has appointed Paolo Pucci as the Lead Independent Director for the Board of Directors, effective at the Annual Meeting.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/105770/000162828022004277/0001628280-22-004277-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Lead Independent Director"}],"fact_type":"executive_change"},{"claim_id":"c3f8c244e9","claim":"Eric M. Green changed role as Chairman of the Board at WEST PHARMACEUTICAL SERVICES INC.","evidence_excerpt":"Eric M. Green, President and Chief Executive Officer (\"CEO\"), will assume the additional responsibility of Chair of the Company's Board upon Mr. Zenner's retirement.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/105770/000162828022004277/0001628280-22-004277-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"assume the additional responsibility of Chair"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}