{"schema_version":"secwatch.filing_event.v1","accession":"0000825313-21-000051","form_type":"8-K","ticker":"AB","cik":"0000825313","company_name":"ALLIANCEBERNSTEIN HOLDING L.P.","filed_at":"2021-09-27T23:59:59+00:00","discovered_at":"2026-05-14T18:04:20.900627+00:00","generated_at":"2026-06-29T01:24:20.392310+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"AllianceBernstein appoints Todd Walthall to board; Paul Audet departs","bullets":["Paul Audet departed the board effective September 21, 2021.","Todd Walthall appointed as independent director, joining the Audit and Risk Committee.","Walthall is EVP of Enterprise Growth at UnitedHealth Group; previously COO at Blue Shield of California."],"urls":{"canonical":"https://secwatch.observer/filing/0000825313-21-000051","json":"https://secwatch.observer/filing/0000825313-21-000051.json","markdown":"https://secwatch.observer/filing/0000825313-21-000051.md","text":"https://secwatch.observer/filing/0000825313-21-000051.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/825313/000082531321000051/0000825313-21-000051-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/825313/000082531321000051/ab-20210927.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T01:24:20.392310+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":"58e80e7546","claim":"Paul Audet departed as Director at ALLIANCEBERNSTEIN HOLDING L.P..","evidence_excerpt":"Effective September 21, 2021, Paul Audet departed the Board of Directors","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/825313/000082531321000051/0000825313-21-000051-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"departed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"b39a78cf7c","claim":"Todd Walthall was appointed as Director at ALLIANCEBERNSTEIN HOLDING L.P..","evidence_excerpt":"Effective September 21, 2021, Todd Walthall, Executive Vice President of Enterprise Growth at United Healthcare Group, joined the Board","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/825313/000082531321000051/0000825313-21-000051-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"joined"},{"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"}