{"schema_version":"secwatch.filing_event.v1","accession":"0000842517-26-000002","form_type":"8-K","ticker":"ISBA","cik":"0000842517","company_name":"ISABELLA BANK CORP","filed_at":"2026-01-05T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.809778+00:00","generated_at":"2026-05-16T11:46:08.866208+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Isabella Bank appoints Gerald J. Ritzert as CFO effective January 5, 2026","bullets":["Ritzert, age 56, brings over 30 years of banking finance experience.","Most recently EVP and CFO of First National Bank & Trust in Beloit, WI since 2021.","Previously served as CFO of Dollar Bank, FSB in Pittsburgh, PA.","Succeeds Neil McDonnell, who had been acting interim CFO since August 2025.","Ritzert is a CPA with a B.S. in Accounting from Robert Morris College."],"urls":{"canonical":"https://secwatch.observer/filing/0000842517-26-000002","json":"https://secwatch.observer/filing/0000842517-26-000002.json","markdown":"https://secwatch.observer/filing/0000842517-26-000002.md","text":"https://secwatch.observer/filing/0000842517-26-000002.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/842517/000084251726000002/0000842517-26-000002-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/842517/000084251726000002/isba-20260105.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:46:08.866208+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}