{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-25-035910","form_type":"8-K","ticker":"MNSB","cik":"0001693577","company_name":"MainStreet Bancshares, Inc.","filed_at":"2025-11-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.166943+00:00","generated_at":"2026-05-16T17:38:53.584247+00:00","sec_items":["8.01"],"event_type":"dividend","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"MainStreet Bancshares declares quarterly preferred dividend of $0.47 per depositary share","bullets":["Dividend of ~$0.47 per depositary share (MNSBP) or $18.75 per Series A Preferred share.","Payable on December 30, 2025 to holders of record as of December 15, 2025.","Series A Preferred is 7.50% fixed-rate non-cumulative perpetual, liquidation preference $1,000/share.","Future quarterly payment dates will be March 30, June 30, September 30, December 30."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-25-035910","json":"https://secwatch.observer/filing/0001437749-25-035910.json","markdown":"https://secwatch.observer/filing/0001437749-25-035910.md","text":"https://secwatch.observer/filing/0001437749-25-035910.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1693577/000143774925035910/0001437749-25-035910-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1693577/000143774925035910/main20251107_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T17:38:53.584247+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"}