{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-415585","form_type":"8-K","ticker":"BY","cik":"0001702750","company_name":"BYLINE BANCORP, INC.","filed_at":"2026-10-06T20:15:16+00:00","discovered_at":"2026-10-06T20:16:00.260077+00:00","generated_at":"2026-10-12T16:18:42.917986+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":"Byline to acquire Illinois State Bancorp in $87.9M cash-and-stock deal, expanding Chicago footprint","bullets":["Deal valued at ~$87.9M: Byline will issue ~1.4M shares and pay $28.9M cash to Illinois State shareholders, plus ~$5.1M cash to settle outstanding stock options.","$261.23 per Illinois State common share based on Byline's $37.63 closing price on Oct 5, 2026; fully diluted transaction value ~$87.9M.","Illinois State had $617.3M assets, $470.5M loans and $510.5M deposits as of June 30, 2026; runs First Nations Bank and The Bank of Bourbonnais.","Combined franchise: 48 branches, ~$10.5B assets, $8.0B loans, $8.4B deposits; deal expected to close Q1 2027 pending regulatory and shareholder approvals.","Boards of both companies unanimously approved; D.A. Davidson advised Illinois State, Vedder Price advised Byline; CEOs Herencia and Barbi cited cultural fit and Chicago market density."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-415585","json":"https://secwatch.observer/filing/0001193125-26-415585.json","markdown":"https://secwatch.observer/filing/0001193125-26-415585.md","text":"https://secwatch.observer/filing/0001193125-26-415585.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1702750/000119312526415585/0001193125-26-415585-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1702750/000119312526415585/by-20261006.htm"},"model":{"generated_by":"deepseek-v4.1-flash:cloud@v2","generated_at":"2026-10-12T16:18:42.917986+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"}