{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-058671","form_type":"8-K/A","ticker":"FBIZ","cik":"0001521951","company_name":"FIRST BUSINESS FINANCIAL SERVICES, INC.","filed_at":"2026-05-11T20:19:06+00:00","discovered_at":"2026-05-11T20:20:00.371658+00:00","generated_at":"2026-05-11T21:57:00.957511+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"David R. Seiler appointed President and CEO of First Business Financial Services","bullets":["Seiler appointed President & CEO effective May 3, 2026; also appointed to Board as Class III Director.","Base salary of at least $600,000; eligible for annual cash incentive and long-term incentive plans.","On May 16, 2026, receives RSU grant valued at $215,000, vesting over 5 years (15% annually first 4 years, 40% on 5th).","Severance: termination without cause or for good reason provides 2x salary, prorated target bonus, and 18 months COBRA.","Succeeds Corey A. Chambas, whose retirement was announced in May 2025; prior role was President & COO."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-058671","json":"https://secwatch.observer/filing/0001104659-26-058671.json","markdown":"https://secwatch.observer/filing/0001104659-26-058671.md","text":"https://secwatch.observer/filing/0001104659-26-058671.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1521951/000110465926058671/0001104659-26-058671-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1521951/000110465926058671/tm2614120d1_8ka.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-11T21:57:00.957511+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":"111a5943e7","claim":"David R. Seiler was appointed as Class III Director at FIRST BUSINESS FINANCIAL SERVICES, INC..","evidence_excerpt":"Mr. Seiler was appointed to the Company’s Board of Directors effective May 3, 2026.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1521951/000110465926058671/0001104659-26-058671-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Class III Director"}],"fact_type":"executive_change"},{"claim_id":"ec4d06a1db","claim":"David R. Seiler was appointed as President and Chief Executive Officer at FIRST BUSINESS FINANCIAL SERVICES, INC..","evidence_excerpt":"the Board of Directors of First Business Financial Services, Inc. (the \"Company\") appointed David R. Seiler as President and Chief Executive Officer of the Company, effective May 3, 2026.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1521951/000110465926058671/0001104659-26-058671-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President and Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}