{"schema_version":"secwatch.filing_event.v1","accession":"0000943374-23-000391","form_type":"8-K","ticker":"MBBC","cik":"0001835385","company_name":"Marathon Bancorp, Inc. /MD/","filed_at":"2023-09-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:35.595615+00:00","generated_at":"2026-06-10T12:28:04.254133+00:00","sec_items":["4.02"],"event_type":"other_material","sentiment":"negative","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Marathon Bancorp restates FY2022 & FY2023 quarterly statements due to deferred tax liability error","bullets":["Audit committee concluded prior audited FY2022 and unaudited quarterly periods from Sep 2021 to Mar 2023 should no longer be relied upon.","Error: erroneously recorded a deferred tax liability for pre-1988 excess tax bad debt due to misinterpretation of thrift status after 1993 charter conversion.","Correction requires a $481,798 adjustment to opening retained earnings as of July 1, 2021.","Unrecaptured pre-1988 federal bad debt reserve of ~$1.5 million; no deferred tax liability provided as management does not intend to trigger recapture.","Restated financials will be included in the pending FY2023 10-K."],"urls":{"canonical":"https://secwatch.observer/filing/0000943374-23-000391","json":"https://secwatch.observer/filing/0000943374-23-000391.json","markdown":"https://secwatch.observer/filing/0000943374-23-000391.md","text":"https://secwatch.observer/filing/0000943374-23-000391.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1835385/000094337423000391/0000943374-23-000391-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1835385/000094337423000391/form8k_091923.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T12:28:04.254133+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"}