{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-26-012888","form_type":"8-K","ticker":"MBWM","cik":"0001042729","company_name":"MERCANTILE BANK CORP","filed_at":"2026-04-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:31.850718+00:00","generated_at":"2026-05-15T05:02:47.206358+00:00","sec_items":["2.02","7.01","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Mercantile Bank Q1 net income $22.7M ($1.32 diluted); adjusted EPS $1.46, revenue up 18% YoY","bullets":["GAAP net income $22.7M ($1.32 diluted) vs $19.5M ($1.21) a year ago; adjusted net income $25.2M ($1.46).","Net revenue $67.6M (+18.1% YoY); net interest margin 3.55% vs 3.47%.","Negative provision for credit losses $1.8M vs positive $2.1M last year.","Loan-to-deposit ratio 89% vs 91% at Dec 2025 and 99% at Mar 2025; local deposits grew 14.6% annualized.","Tangible book value $37.34/share, up $0.56 from Dec 2025; asset quality remains low NPAs at 0.1% of assets."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-26-012888","json":"https://secwatch.observer/filing/0001437749-26-012888.json","markdown":"https://secwatch.observer/filing/0001437749-26-012888.md","text":"https://secwatch.observer/filing/0001437749-26-012888.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1042729/000143774926012888/0001437749-26-012888-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1042729/000143774926012888/mbwm20260306_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T05:02:47.206358+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":"cc161f8da854d3fc80b5422b0d9b170d964b44bb","claim":"MERCANTILE BANK CORP reported the first quarter of 2026 results: revenue $67.6 million, net income $22.7 million, EPS $1.32 per diluted share.","evidence_excerpt":"robust local deposit growth ● Strong tangible and regulatory capital positions Operating Results Net revenue, consisting of net interest income and noninterest income, was $67.6 million during the first quarter of 2026, up $10.3 million, or 18.1 percent, from $57.3 million during the prior-year first quarter. Net interest income during the first three months of","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1042729/000143774926012888/0001437749-26-012888-index.htm","confidence":0.9,"family_label":"Earnings Releases","details":[{"label":"Period","value":"the first quarter of 2026"},{"label":"Revenue","value":"$67.6 million"},{"label":"Net income","value":"$22.7 million"},{"label":"EPS","value":"$1.32 per diluted share"},{"label":"Result","value":"reported results"}]}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}