{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-26-001502","form_type":"8-K/A","ticker":"MBWM","cik":"0001042729","company_name":"MERCANTILE BANK CORP","filed_at":"2026-01-20T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.448328+00:00","generated_at":"2026-05-16T09:28:09.928785+00:00","sec_items":["7.01","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"low","headline":"Mercantile Bank amends Q4 2025 earnings presentation to correct 2026 overhead and fee income slide","bullets":["Amendment corrects error on slide 26: overhead costs for Q1-Q4 2026 and fee income for Q3-Q4 2026.","All other information from original January 20, 2026 earnings release remains unchanged.","Revised presentation furnished as Exhibit 99.1; original Q4 2025 financial results unaffected.","No specific corrected metrics disclosed in the filing; full presentation not viewable."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-26-001502","json":"https://secwatch.observer/filing/0001437749-26-001502.json","markdown":"https://secwatch.observer/filing/0001437749-26-001502.md","text":"https://secwatch.observer/filing/0001437749-26-001502.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1042729/000143774926001502/0001437749-26-001502-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1042729/000143774926001502/mbwm20260120_8ka.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T09:28:09.928785+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"}