secwatch.observer — SEC 8-K summary ====================================== Issuer: OLD SECOND BANCORP INC (OSBC) CIK: 0000357173 Form: 8-K Filed at: 2026-04-01T23:59:59+00:00 Accession: 0000357173-26-000016 Event type: other_material Sentiment: neutral Materiality: 0.15 LLM model: deepseek-v4-flash:cloud@v2 Old Second Bancorp to report Q1 2026 earnings on April 22, call April 23 ------------------------------------------------------------------------ - Q1 2026 financial results to be released after market close on April 22, 2026. - Earnings call scheduled for April 23, 2026 at 10:00 AM ET / 9:00 AM CT. - Webcast accessible via https://www.webcaster5.com/Webcast/Page/2239/53807. - Replay available on investor relations website for up to one year. - No preliminary financial data or guidance provided in this filing. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/357173/000035717326000016/0000357173-26-000016-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/357173/000035717326000016/osbc-20260401x8k.htm HTML page: https://secwatch.observer/filing/0000357173-26-000016 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer