{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-21-000063","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2021-08-17T23:59:59+00:00","discovered_at":"2026-05-14T18:04:20.378211+00:00","generated_at":"2026-06-29T09:41:02.316634+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Old Second Bancorp appoints Dennis Klaeser to board, increasing size to 14","bullets":["Board increased to 14 directors; Klaeser fills the newly created seat effective immediately.","Klaeser most recently served as CFO of TCF Financial Corporation from August 2016 to April 2020.","He also held CFO roles at Talmer Bancorp and PrivateBancorp, and was a senior Midwest bank analyst at Raymond James.","Awarded 1,500 time-based restricted stock units that cliff vest on the third anniversary of the grant date.","Appointed to the Audit Committee and Risk Committee; classified as an independent director."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-21-000063","json":"https://secwatch.observer/filing/0000357173-21-000063.json","markdown":"https://secwatch.observer/filing/0000357173-21-000063.md","text":"https://secwatch.observer/filing/0000357173-21-000063.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717321000063/0000357173-21-000063-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717321000063/osbc-20210817x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T09:41:02.316634+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":"135dd9c6bb","claim":"Dennis Klaeser was appointed as Director at OLD SECOND BANCORP INC.","evidence_excerpt":"the Board increased its size to 14 directors and appointed Dennis Klaeser to fill the newly-created seat, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/357173/000035717321000063/0000357173-21-000063-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}