{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-24-000062","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2024-08-27T23:59:59+00:00","discovered_at":"2026-05-14T18:03:15.519534+00:00","generated_at":"2026-05-31T07:30:54.689503+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Old Second Bancorp to acquire 5 Chicago-area branches from First Merchants for $23M premium","bullets":["Assumes ~$304M in deposits and purchases ~$12M in loans from First Merchants.","Pays deposit premium of 7.5%, or ~$23M cash consideration; closing expected Q4 2024.","Acquisition enhances Old Second's position in Southeast Chicago MSA; First Merchants exits suburban Chicago.","Old Second had $5.7B in assets as of June 30, 2024; transaction subject to regulatory approval."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-24-000062","json":"https://secwatch.observer/filing/0000357173-24-000062.json","markdown":"https://secwatch.observer/filing/0000357173-24-000062.md","text":"https://secwatch.observer/filing/0000357173-24-000062.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717324000062/0000357173-24-000062-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717324000062/tmb-20240826x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T07:30:54.689503+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"}