{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-25-000044","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2025-05-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.958432+00:00","generated_at":"2026-05-20T19:12:06.943917+00:00","sec_items":["8.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Old Second receives regulatory approvals for Bancorp Financial merger; close expected July 2025","bullets":["Received required bank regulatory approvals for merger with Bancorp Financial, Inc. (Oakbrook, IL).","Completion still subject to Bancorp Financial stockholder approval and other customary closing conditions.","Old Second expects to close the transaction in July 2025; operates 53 branches in Illinois.","Bancorp Financial maintains 3 banking locations in DuPage/Cook counties, IL, plus one Reno, NV loan office.","CEO James Eccher cites enhanced financial strength and Chicago market position from the combination."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-25-000044","json":"https://secwatch.observer/filing/0000357173-25-000044.json","markdown":"https://secwatch.observer/filing/0000357173-25-000044.md","text":"https://secwatch.observer/filing/0000357173-25-000044.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717325000044/0000357173-25-000044-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717325000044/tmb-20250522x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-20T19:12:06.943917+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"}