{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-25-038066","form_type":"8-K","ticker":"MBWM","cik":"0001042729","company_name":"MERCANTILE BANK CORP","filed_at":"2025-12-17T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.636034+00:00","generated_at":"2026-05-16T12:51:28.389234+00:00","sec_items":["8.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Mercantile gets final regulatory nod for Eastern Michigan merger; close set for Dec 31","bullets":["Federal Reserve Bank of Chicago approved merger; all required regulatory approvals now received.","Eastern shareholder vote scheduled for Dec 19, 2025; merger expected to close Dec 31, 2025.","Post-merger, Mercantile will operate as a two-bank holding company until Q1 2027 consolidation.","Acquired Eastern Michigan Bank to operate alongside Mercantile Bank pending further regulatory approvals."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-25-038066","json":"https://secwatch.observer/filing/0001437749-25-038066.json","markdown":"https://secwatch.observer/filing/0001437749-25-038066.md","text":"https://secwatch.observer/filing/0001437749-25-038066.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1042729/000143774925038066/0001437749-25-038066-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1042729/000143774925038066/mbwm20251216_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T12:51:28.389234+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"}