{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-25-038454","form_type":"8-K","ticker":"MBWM","cik":"0001042729","company_name":"MERCANTILE BANK CORP","filed_at":"2025-12-19T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.636254+00:00","generated_at":"2026-05-16T12:30:50.213869+00:00","sec_items":["8.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"EFIN shareholders approve merger with Mercantile Bank; close expected Dec 31, 2025","bullets":["At special meeting Dec 19, 2025, EFIN shareholders voted to approve merger with Mercantile Bank Corporation.","Parties anticipate closing the merger on December 31, 2025, subject to satisfaction of closing conditions.","Merger Agreement originally dated July 22, 2025, amended October 5, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-25-038454","json":"https://secwatch.observer/filing/0001437749-25-038454.json","markdown":"https://secwatch.observer/filing/0001437749-25-038454.md","text":"https://secwatch.observer/filing/0001437749-25-038454.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1042729/000143774925038454/0001437749-25-038454-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1042729/000143774925038454/mbwm20251219_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T12:30:50.213869+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"}