{"schema_version":"secwatch.filing_event.v1","accession":"0000746838-21-000069","form_type":"8-K","ticker":"UIS","cik":"0000746838","company_name":"UNISYS CORP","filed_at":"2021-07-23T23:59:59+00:00","discovered_at":"2026-05-14T18:04:20.681675+00:00","generated_at":"2026-06-30T03:05:34.659946+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Unisys board member Lisa A. Hook resigns effective July 31, 2021","bullets":["Lisa A. Hook announced resignation from the board effective July 31, 2021.","Resignation is not due to any disagreement with Unisys regarding operations, policies, or practices.","No replacement for Hook's board seat has been announced as of the filing date."],"urls":{"canonical":"https://secwatch.observer/filing/0000746838-21-000069","json":"https://secwatch.observer/filing/0000746838-21-000069.json","markdown":"https://secwatch.observer/filing/0000746838-21-000069.md","text":"https://secwatch.observer/filing/0000746838-21-000069.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/746838/000074683821000069/0000746838-21-000069-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/746838/000074683821000069/uis-20210723.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-30T03:05:34.659946+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":"6fcd660fd5","claim":"Lisa A. Hook resigned as Director at UNISYS CORP.","evidence_excerpt":"On July 23, 2021 , Lisa A. Hook, a member of the Board of Directors (the “Board”) of Unisys Corporation (the “Company”), announced her resignation from the Board effective July 31, 2021.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/746838/000074683821000069/0000746838-21-000069-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}