{"schema_version":"secwatch.filing_event.v1","accession":"0000357173-26-000012","form_type":"8-K","ticker":"OSBC","cik":"0000357173","company_name":"OLD SECOND BANCORP INC","filed_at":"2026-01-29T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.390207+00:00","generated_at":"2026-05-16T06:39:26.307095+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Old Second Bancorp authorizes $43.9M share repurchase program, receives Fed nonobjection","bullets":["Board authorized up to $43.9M in common stock repurchases; program expires Dec 31, 2026.","Federal Reserve Bank of Chicago issued nonobjection letter dated Jan 8, 2026.","Repurchases may be made via open market, trading plans, or private negotiations.","Management has discretion over timing, quantity, and price; no obligation to buy shares.","Program can be suspended or restarted at any time; post-2026 repurchases require new Fed nonobjection."],"urls":{"canonical":"https://secwatch.observer/filing/0000357173-26-000012","json":"https://secwatch.observer/filing/0000357173-26-000012.json","markdown":"https://secwatch.observer/filing/0000357173-26-000012.md","text":"https://secwatch.observer/filing/0000357173-26-000012.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/357173/000035717326000012/0000357173-26-000012-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/357173/000035717326000012/osbc-20260129x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T06:39:26.307095+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"}