{"schema_version":"secwatch.filing_event.v1","accession":"0001722482-25-000087","form_type":"8-K","ticker":"AVTR","cik":"0001722482","company_name":"Avantor, Inc.","filed_at":"2025-04-28T23:59:59+00:00","discovered_at":"2026-05-14T18:02:49.470713+00:00","generated_at":"2026-05-23T05:04:39.452429+00:00","sec_items":["5.02","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Avantor CEO Michael Stubblefield to step down upon successor appointment","bullets":["Stubblefield to step down as CEO and from board; will remain non-executive advisor until Feb 28, 2026.","Transition agreement signed April 24; he continues in current role until successor named or End Date.","Eligible for involuntary separation payments under existing employment agreement if employed through End Date."],"urls":{"canonical":"https://secwatch.observer/filing/0001722482-25-000087","json":"https://secwatch.observer/filing/0001722482-25-000087.json","markdown":"https://secwatch.observer/filing/0001722482-25-000087.md","text":"https://secwatch.observer/filing/0001722482-25-000087.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1722482/000172248225000087/0001722482-25-000087-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1722482/000172248225000087/avtr-20250424.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T05:04:39.452429+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":"7ccae97c94","claim":"Michael Stubblefield departed as Director, President and Chief Executive Officer at Avantor, Inc..","evidence_excerpt":"Michael Stubblefield and Avantor, Inc. (the “Company”) agreed to initiate a leadership transition and Mr. Stubblefield agreed to step down from his role as Director, President and Chief Executive Officer of the Company, effective upon the appointment of his successor.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1722482/000172248225000087/0001722482-25-000087-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"step down"},{"label":"Role","value":"Director, President and Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}