{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-26-000050","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2026-10-01T15:00:10+00:00","discovered_at":"2026-10-01T15:01:00.193671+00:00","generated_at":"2026-10-12T14:19:06.699429+00:00","sec_items":[],"event_type":"other","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Old Second Bancorp sets Q3 2026 earnings release for Oct 21; call Oct 22","bullets":["Old Second Bancorp (Nasdaq: OSBC) will release third-quarter 2026 financial results after the market closes on October 21, 2026.","Earnings call is scheduled for Thursday, October 22, 2026 at 10:00 a.m. Eastern Time (9:00 a.m. Central Time) via live webcast.","Webcast replay will be posted in the Events section of investors.oldsecond.com and remain available for up to one year.","No quarterly figures, guidance or other operating results were disclosed; the notice is purely a scheduling announcement.","Filing signed by Bradley S. Adams, Executive Vice President, Chief Operating Officer and Chief Financial Officer."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-26-000050","json":"https://secwatch.observer/filing/0000357173-26-000050.json","markdown":"https://secwatch.observer/filing/0000357173-26-000050.md","text":"https://secwatch.observer/filing/0000357173-26-000050.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717326000050/0000357173-26-000050-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717326000050/osbc-20261001x8k.htm"},"model":{"generated_by":"deepseek-v4.1-flash:cloud@v2","generated_at":"2026-10-12T14:19:06.699429+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}