{"filing":{"accession_number":"0000842517-26-000184","cik":"0000842517","ticker":"ISBA","company_name":"ISABELLA BANK CORP","form":"8-K","filing_date":"2026-08-14","report_date":"2026-08-11","primary_document":"isba-20260811.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/842517/000084251726000184/isba-20260811.htm"},"events":[{"id":27810,"run_id":25382,"accession_number":"0000842517-26-000184","anchor_item_number":"5.02","event_type":"exec_compensation","event_domain":"governance","is_material":true,"confidence":0.95,"summary":"The disclosure centers on a new participation agreement under the Supplemental Executive Retirement Plan with Gerald J. Ritzert, the CFO, providing eight annual credits totaling $300,000 and specifying retirement age and payment terms. This is a compensatory arrangement for a named executive officer, fitting the definition of exec_compensation under Item 5.02(e).","company_name":"ISABELLA BANK CORP","ticker":"ISBA","filing_date":"2026-08-14","form":"8-K","submitted_at":null,"items":[{"id":29497,"accession_number":"0000842517-26-000184","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_compensation","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The disclosure centers on a new participation agreement under the Supplemental Executive Retirement Plan with Gerald J. Ritzert, the CFO, providing eight annual credits totaling $300,000 and specifying retirement age and payment terms. This is a compensatory arrangement for a named executive officer, fitting the definition of exec_compensation under Item 5.02(e).","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-14T15:01:51.777105+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":29497,"accession_number":"0000842517-26-000184","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_compensation","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The disclosure centers on a new participation agreement under the Supplemental Executive Retirement Plan with Gerald J. Ritzert, the CFO, providing eight annual credits totaling $300,000 and specifying retirement age and payment terms. This is a compensatory arrangement for a named executive officer, fitting the definition of exec_compensation under Item 5.02(e).","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-14T15:01:51.777105+00:00","company_name":"ISABELLA BANK CORP","ticker":"ISBA","filing_date":"2026-08-14"}]}