{"schema_version":"secwatch.filing_event.v1","accession":"0000842517-23-000036","form_type":"8-K","ticker":"ISBA","cik":"0000842517","company_name":"ISABELLA BANK CORP","filed_at":"2023-02-27T23:59:59+00:00","discovered_at":"2026-05-14T18:03:48.236329+00:00","generated_at":"2026-06-19T00:12:44.929197+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Two long-serving directors to retire from Isabella Bank Corp board in 2023","bullets":["David J. Maness (20 years service, Chairman 2010-2021) will not seek re-election due to mandatory retirement age in June 2023.","G. Charles Hubscher (19 years service) will not seek re-election due to mandatory retirement age in July 2023.","Both directors will continue serving through the 2023 annual meeting of shareholders.","No replacements have been named; the board will fill vacancies after the annual meeting."],"urls":{"canonical":"https://secwatch.observer/filing/0000842517-23-000036","json":"https://secwatch.observer/filing/0000842517-23-000036.json","markdown":"https://secwatch.observer/filing/0000842517-23-000036.md","text":"https://secwatch.observer/filing/0000842517-23-000036.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/842517/000084251723000036/0000842517-23-000036-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/842517/000084251723000036/isba-20230222.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T00:12:44.929197+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":"472ae28696","claim":"David J. Maness departed as director at ISABELLA BANK CORP.","evidence_excerpt":"Mr. Maness advised the Corporation's Board of Directors, at its regular meeting held February 22, 2023, that he would not seek re-election to the Corporation's Board of Directors nor the appointment to the Board of Directors of Isabella Bank.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/842517/000084251723000036/0000842517-23-000036-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"will not seek re-election"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"7831e7fdbd","claim":"G. Charles Hubscher departed as director at ISABELLA BANK CORP.","evidence_excerpt":"Mr. Hubscher also advised the Corporation's Board of Directors, at its regular meeting held February 22, 2023, that he would not seek re-election to the Corporation's Board of Directors nor the appointment to the Board of Directors of Isabella Bank.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/842517/000084251723000036/0000842517-23-000036-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"will not seek re-election"},{"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"}