{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-110474","form_type":"8-K","ticker":"BY","cik":"0001702750","company_name":"BYLINE BANCORP, INC.","filed_at":"2024-10-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.276015+00:00","generated_at":"2026-05-30T23:30:40.697709+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Byline Bancorp to acquire First Security Bancorp for ~$41M in cash and stock","bullets":["Deal valued at ~$41M; Byline issues 2.1794 shares per First Security share (~1.5M shares) plus ~$2.6M cash for preferred.","First Security has $354.8M in assets, $201.4M in loans, $321.8M in deposits as of June 30, 2024.","Merger expected to close in Q2 2025, subject to regulatory and stockholder approvals.","Transaction solidifies Byline as Chicago's largest community bank under $10B assets, with 45 branches.","Boards of both companies unanimously approved the deal."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-110474","json":"https://secwatch.observer/filing/0000950170-24-110474.json","markdown":"https://secwatch.observer/filing/0000950170-24-110474.md","text":"https://secwatch.observer/filing/0000950170-24-110474.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1702750/000095017024110474/0000950170-24-110474-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1702750/000095017024110474/by-20240930.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T23:30:40.697709+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"}