{"schema_version":"secwatch.filing_event.v1","accession":"0000105770-23-000075","form_type":"8-K","ticker":"WST","cik":"0000105770","company_name":"WEST PHARMACEUTICAL SERVICES INC","filed_at":"2023-11-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:28.065771+00:00","generated_at":"2026-06-07T19:46:39.767445+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"West Pharmaceutical extends butyl polymer supply agreement with ExxonMobil through 2028","bullets":["Amendment secures supply of butyl polymers, a key raw material for pharmaceutical packaging, from 2024 to 2028.","Pricing includes base price plus adjustments based on Brent crude, UK natural gas, and USGC isobutylene indices (redacted).","Product qualification at Baton Rouge plant waives isobutylene adjustment during contract term as incentive.","New sustainability collaboration provision added, with joint discussions on activities and milestones."],"urls":{"canonical":"https://secwatch.observer/filing/0000105770-23-000075","json":"https://secwatch.observer/filing/0000105770-23-000075.json","markdown":"https://secwatch.observer/filing/0000105770-23-000075.md","text":"https://secwatch.observer/filing/0000105770-23-000075.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/105770/000010577023000075/0000105770-23-000075-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/105770/000010577023000075/wst-20231127.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T19:46:39.767445+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":"899be804779ce9fe956de2504c621c0958e248f3","claim":"WEST PHARMACEUTICAL SERVICES INC amended global master supply agreement with ExxonMobil Product Solutions Company (effective 2023-11-27).","evidence_excerpt":"On November 27, 2023, West Pharmaceutical Services, Inc. (the “Company”) executed an amendment to the global master supply agreement (the “Amendment”) with ExxonMobil Product Solutions Company (“EMPSC”).","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/105770/000010577023000075/0000105770-23-000075-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"supply"},{"label":"Counterparty","value":"ExxonMobil Product Solutions Company"},{"label":"Effective","value":"2023-11-27"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}