{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-26-000005","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2026-01-02T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.389622+00:00","generated_at":"2026-05-16T11:51:54.714408+00:00","sec_items":[],"event_type":"other","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"low","headline":"Old Second Bancorp to report Q4 2025 results on Jan 21, 2026","bullets":["Q4 2025 financial results to be released after market close on January 21, 2026.","Earnings call scheduled for January 22, 2026 at 10:00 a.m. ET (9:00 a.m. CT).","Webcast available on the Old Second Investor Relations website; replay accessible for one year.","No financial results or guidance provided in this filing."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-26-000005","json":"https://secwatch.observer/filing/0000357173-26-000005.json","markdown":"https://secwatch.observer/filing/0000357173-26-000005.md","text":"https://secwatch.observer/filing/0000357173-26-000005.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717326000005/0000357173-26-000005-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717326000005/osbc-20260102x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:51:54.714408+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"}