{"filing":{"accession_number":"0000939057-26-000277","cik":"0001530249","ticker":"FSBW","company_name":"FS Bancorp, Inc.","form":"8-K","filing_date":"2026-10-23","report_date":"2026-10-22","primary_document":"fsbw-20261022.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1530249/000093905726000277/fsbw-20261022.htm"},"events":[{"id":37537,"run_id":34595,"accession_number":"0000939057-26-000277","anchor_item_number":"5.02","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"summary":"Matthew D. Mullet, who already serves as President and Chief Executive Officer of FS Bancorp and its subsidiary bank, has been appointed to the Boards of Directors of both entities effective October 22, 2026. This is a material governance event reflecting the elevation of an existing executive to board-level oversight responsibility. The disclosure emphasizes his extensive leadership experience and the Board's ratification of the appointment, making this a clear exec_appointment event.","company_name":"FS Bancorp, Inc.","ticker":"FSBW","filing_date":"2026-10-23","form":"8-K","submitted_at":null,"items":[{"id":42278,"accession_number":"0000939057-26-000277","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_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"Matthew D. Mullet, who already serves as President and Chief Executive Officer of FS Bancorp and its subsidiary bank, has been appointed to the Boards of Directors of both entities effective October 22, 2026. This is a material governance event reflecting the elevation of an existing executive to board-level oversight responsibility. The disclosure emphasizes his extensive leadership experience and the Board's ratification of the appointment, making this a clear exec_appointment event.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-23T17:48:37.468735+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":42278,"accession_number":"0000939057-26-000277","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_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"Matthew D. Mullet, who already serves as President and Chief Executive Officer of FS Bancorp and its subsidiary bank, has been appointed to the Boards of Directors of both entities effective October 22, 2026. This is a material governance event reflecting the elevation of an existing executive to board-level oversight responsibility. The disclosure emphasizes his extensive leadership experience and the Board's ratification of the appointment, making this a clear exec_appointment event.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-23T17:48:37.468735+00:00","company_name":"FS Bancorp, Inc.","ticker":"FSBW","filing_date":"2026-10-23"}]}