{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-23-038093","form_type":"8-K","ticker":"ROIV","cik":"0001635088","company_name":"Roivant Sciences Ltd.","filed_at":"2023-08-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:34.635194+00:00","generated_at":"2026-06-12T06:02:54.190395+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Director Hiroshi Nomura resigns from Roivant board effective Aug 31, 2023","bullets":["Hiroshi Nomura, Class III director, to resign from board effective August 31, 2023.","Resignation is to focus on other business affairs; no disagreement with company.","No replacement named; board size reduces."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-23-038093","json":"https://secwatch.observer/filing/0001140361-23-038093.json","markdown":"https://secwatch.observer/filing/0001140361-23-038093.md","text":"https://secwatch.observer/filing/0001140361-23-038093.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1635088/000114036123038093/0001140361-23-038093-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1635088/000114036123038093/brhc20057013_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-12T06:02:54.190395+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":"5585ff5ce2","claim":"Hiroshi Nomura resigned as Class III Director at Roivant Sciences Ltd..","evidence_excerpt":"On July 31, 2023, Hiroshi Nomura, a Class III director of Roivant Sciences Ltd. (the “Company”), informed the Company of his intention to resign from his role on the Company’s board of directors (the “Board”), effective August 31, 2023, to focus on other business affairs.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1635088/000114036123038093/0001140361-23-038093-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Class III Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}