{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-24-000078","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2024-12-09T23:59:59+00:00","discovered_at":"2026-05-14T18:03:10.729167+00:00","generated_at":"2026-05-29T05:54:28.844025+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Old Second completes five-branch acquisition from First Merchants Bank","bullets":["Closed purchase of five Illinois branches from First Merchants Bank effective Dec 6, 2024.","Assumed ~$274.2M in deposits and purchased ~$7.5M in loans, plus other branch assets.","Acquired branches will open as Old Second on Monday, December 9, 2024.","CEO James Eccher said the deal adds meaningfully to the company's Southeast Chicago network."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-24-000078","json":"https://secwatch.observer/filing/0000357173-24-000078.json","markdown":"https://secwatch.observer/filing/0000357173-24-000078.md","text":"https://secwatch.observer/filing/0000357173-24-000078.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717324000078/0000357173-24-000078-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717324000078/tmb-20241206x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T05:54:28.844025+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"}