{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-26-012768","form_type":"8-K","ticker":"MNSB","cik":"0001693577","company_name":"MainStreet Bancshares, Inc.","filed_at":"2026-04-20T23:59:59+00:00","discovered_at":"2026-05-14T18:02:32.753865+00:00","generated_at":"2026-05-15T05:20:25.147127+00:00","sec_items":["2.02","7.01","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"MainStreet Bancshares Q1 net income $4.1M ($0.48 EPS); margin expands 9 bps to 3.47%","bullets":["Net income $4.1M, diluted EPS $0.48; net interest margin expanded 9 bps to 3.47%.","Executed buyback of 273,448 shares; book value per common share $25.63.","Total deposits grew to $1.9B; core funding $1.4B; loan-to-deposit ratio 98%.","Nonperforming assets 2.47% of total assets; loans 30-89 days past due and accruing 0.95%.","Company remains strongly capitalized; net loans $1.85B, up from prior quarter."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-26-012768","json":"https://secwatch.observer/filing/0001437749-26-012768.json","markdown":"https://secwatch.observer/filing/0001437749-26-012768.md","text":"https://secwatch.observer/filing/0001437749-26-012768.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1693577/000143774926012768/0001437749-26-012768-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1693577/000143774926012768/main20260220_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T05:20:25.147127+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":[{"claim_id":"e924d7da4c9fdec4b48d7aa6f3c0c073cdb5b54b","claim":"MainStreet Bancshares, Inc. reported first quarter 2026 results: net income $4.1 million, EPS $0.48.","evidence_excerpt":"MainStreet Bancshares, Inc. (Nasdaq: MNSB & MNSBP), the financial holding company for MainStreet Bank, reported a net income of $4.1 million for the quarter-ended March 31, 2026, resulting in earnings per common share of $0.48.","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1693577/000143774926012768/0001437749-26-012768-index.htm","confidence":0.95,"family_label":"Earnings Releases","details":[{"label":"Period","value":"first quarter 2026"},{"label":"Net income","value":"$4.1 million"},{"label":"EPS","value":"$0.48"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}