{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-25-000026","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2025-04-01T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.957654+00:00","generated_at":"2026-05-24T01:13:29.166323+00:00","sec_items":[],"event_type":"other_material","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"low","headline":"Old Second Bancorp to report Q1 2025 earnings on Apr 23 after market close","bullets":["Q1 2025 results release after market close on April 23, 2025.","Earnings call on April 24, 2025 at 10:00 AM ET; dial 888-506-0062, entry code 944947.","Replay available through May 1, 2025 by dialing 877-481-4010, replay PIN 52242."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-25-000026","json":"https://secwatch.observer/filing/0000357173-25-000026.json","markdown":"https://secwatch.observer/filing/0000357173-25-000026.md","text":"https://secwatch.observer/filing/0000357173-25-000026.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717325000026/0000357173-25-000026-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717325000026/tmb-20250401x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T01:13:29.166323+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"}