{"url_path":"/sec/msbb/10-q/2026/item-3","section_key":"item-3","section_title":"Item 3 **Defaults Upon Senior Securities","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-12","source_url":"https://www.sec.gov/Archives/edgar/data/1967306/0001104659-26-059348-index.html","accession_number":"0001104659-26-059348","cik":"0001967306","ticker":"MSBB","issuer_name":"Mercer Bancorp, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1967306/0001104659-26-059348-index.html","primary_entity_key":"0001967306","primary_entity_name":"Mercer Bancorp, Inc."},"word_count":7,"has_tables":true,"body_markdown":"**Item 3.**Defaults Upon Senior Securities\n\nNone.\n\n​"}