{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-025602","form_type":"8-K","ticker":"PB","cik":"0001068851","company_name":"PROSPERITY BANCSHARES INC","filed_at":"2026-01-28T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.492930+00:00","generated_at":"2026-05-16T06:51:56.665850+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":"Prosperity Bancshares to acquire Stellar Bancorp for ~$2.002B in stock/cash","bullets":["Prosperity issues 0.3803 shares plus $11.36 cash per Stellar share; total consideration ~$2.002B.","Stellar has $10.807B assets, $7.301B loans, and $9.021B deposits as of Dec 31, 2025.","Robert R. Franklin Jr. to join Prosperity Bank as Vice Chairman; Ramon Vitulli as Houston Area Chairman.","Two Stellar directors will join Prosperity Board; deal expected to close Q2 2026.","Combination creates second largest Texas bank by deposits with over 330 branches."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-025602","json":"https://secwatch.observer/filing/0001193125-26-025602.json","markdown":"https://secwatch.observer/filing/0001193125-26-025602.md","text":"https://secwatch.observer/filing/0001193125-26-025602.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1068851/000119312526025602/0001193125-26-025602-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1068851/000119312526025602/d103745d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T06:51:56.665850+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"}