{"filing":{"accession_number":"0001193125-26-385193","cik":"0000862831","ticker":"FIISP","company_name":"FINANCIAL INSTITUTIONS INC","form":"8-K","filing_date":"2026-09-08","report_date":"2026-09-08","primary_document":"fisi-20260908.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/862831/000119312526385193/fisi-20260908.htm"},"events":[{"id":31953,"run_id":29349,"accession_number":"0001193125-26-385193","anchor_item_number":"5.02","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.85,"summary":"Bruce W. Harting's retirement from the Board of Directors of Financial Institutions, Inc. and its subsidiary Five Star Bank, effective immediately on September 1, 2026, constitutes a departure of a director. While the filing also describes Susan R. Holliday's technical resignation and reappointment for reclassification purposes (which is administrative and does not represent a true departure), the material event disclosed is Harting's board departure. The filing explicitly states his decision was to pursue outside interests and did not result from disagreement, but the departure itself is the principal disclosed action requiring classification.","company_name":"FINANCIAL INSTITUTIONS INC","ticker":"FIISP","filing_date":"2026-09-08","form":"8-K","submitted_at":null,"items":[{"id":34996,"accession_number":"0001193125-26-385193","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_departure","event_domain":"governance","is_material":true,"confidence":0.85,"reasoning":"Bruce W. Harting's retirement from the Board of Directors of Financial Institutions, Inc. and its subsidiary Five Star Bank, effective immediately on September 1, 2026, constitutes a departure of a director. While the filing also describes Susan R. Holliday's technical resignation and reappointment for reclassification purposes (which is administrative and does not represent a true departure), the material event disclosed is Harting's board departure. The filing explicitly states his decision was to pursue outside interests and did not result from disagreement, but the departure itself is the principal disclosed action requiring classification.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-08T20:07:06.996711+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":34996,"accession_number":"0001193125-26-385193","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_departure","event_domain":"governance","is_material":true,"confidence":0.85,"reasoning":"Bruce W. Harting's retirement from the Board of Directors of Financial Institutions, Inc. and its subsidiary Five Star Bank, effective immediately on September 1, 2026, constitutes a departure of a director. While the filing also describes Susan R. Holliday's technical resignation and reappointment for reclassification purposes (which is administrative and does not represent a true departure), the material event disclosed is Harting's board departure. The filing explicitly states his decision was to pursue outside interests and did not result from disagreement, but the departure itself is the principal disclosed action requiring classification.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-08T20:07:06.996711+00:00","company_name":"FINANCIAL INSTITUTIONS INC","ticker":"FIISP","filing_date":"2026-09-08"}]}