{"filing":{"accession_number":"0001437749-26-032974","cik":"0001042729","ticker":"MBWM","company_name":"MERCANTILE BANK CORP","form":"8-K","filing_date":"2026-10-20","report_date":"2026-10-20","primary_document":"mbwm20260827_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1042729/000143774926032974/mbwm20260827_8k.htm"},"events":[{"id":36315,"run_id":33480,"accession_number":"0001437749-26-032974","anchor_item_number":"2.02","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.97,"summary":"Mercantile Bank Corporation issued a press release on October 20, 2026, announcing third-quarter 2026 earnings of $24.1 million ($1.39 per diluted share), along with detailed operating results, balance sheet metrics, and management commentary on financial performance.","company_name":"MERCANTILE BANK CORP","ticker":"MBWM","filing_date":"2026-10-20","form":"8-K","submitted_at":null,"items":[{"id":40695,"accession_number":"0001437749-26-032974","item_number":"2.02","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"Mercantile Bank Corporation issued a press release on October 20, 2026, announcing earnings and financial results for the quarter ended September 30, 2026. The disclosure includes net income of $24.1 million ($1.39 per diluted share) for Q3 2026, detailed operating results, balance sheet metrics, and management commentary on financial performance. This is a standard quarterly earnings release furnished as Exhibit 99.1 under Item 2.02 (Results of Operations and Financial Condition).","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-20T13:01:43.542172+00:00","company_name":"","ticker":null,"filing_date":""},{"id":40696,"accession_number":"0001437749-26-032974","item_number":"7.01","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"The Item 7.01 disclosure furnishes presentation materials for a third-quarter 2026 conference call, but the substantive content disclosed is Mercantile Bank's quarterly earnings announcement (Exhibit 99.1), which reports net income of $24.1 million ($1.39 per diluted share) for Q3 2026 versus Q3 2025, along with detailed operating results, balance sheet metrics, and management commentary. This is a standard earnings release that would materially affect investor assessment of the registrant's financial performance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-20T13:01:43.542172+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":40695,"accession_number":"0001437749-26-032974","item_number":"2.02","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"Mercantile Bank Corporation issued a press release on October 20, 2026, announcing earnings and financial results for the quarter ended September 30, 2026. The disclosure includes net income of $24.1 million ($1.39 per diluted share) for Q3 2026, detailed operating results, balance sheet metrics, and management commentary on financial performance. This is a standard quarterly earnings release furnished as Exhibit 99.1 under Item 2.02 (Results of Operations and Financial Condition).","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-20T13:01:43.542172+00:00","company_name":"MERCANTILE BANK CORP","ticker":"MBWM","filing_date":"2026-10-20"},{"id":40696,"accession_number":"0001437749-26-032974","item_number":"7.01","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"The Item 7.01 disclosure furnishes presentation materials for a third-quarter 2026 conference call, but the substantive content disclosed is Mercantile Bank's quarterly earnings announcement (Exhibit 99.1), which reports net income of $24.1 million ($1.39 per diluted share) for Q3 2026 versus Q3 2025, along with detailed operating results, balance sheet metrics, and management commentary. This is a standard earnings release that would materially affect investor assessment of the registrant's financial performance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-20T13:01:43.542172+00:00","company_name":"MERCANTILE BANK CORP","ticker":"MBWM","filing_date":"2026-10-20"}]}