{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-25-009706","form_type":"8-K","ticker":"MARA","cik":"0001507605","company_name":"MARA Holdings, Inc.","filed_at":"2025-03-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.835923+00:00","generated_at":"2026-05-25T01:20:36.783153+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"MARA Holdings dismisses Marcum as auditor, appoints PwC for FY2025","bullets":["Marcum dismissed effective March 6, 2025; no disagreements over accounting principles during past two fiscal years.","PricewaterhouseCoopers LLP appointed as new independent auditor for fiscal year ending Dec 31, 2025.","Marcum's reports for FY2024 and FY2023 were unqualified; prior material weakness in revenue controls was remediated by FY2024.","Auditor change follows a competitive process conducted by the Risk and Audit Committee."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-25-009706","json":"https://secwatch.observer/filing/0001493152-25-009706.json","markdown":"https://secwatch.observer/filing/0001493152-25-009706.md","text":"https://secwatch.observer/filing/0001493152-25-009706.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1507605/000149315225009706/0001493152-25-009706-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1507605/000149315225009706/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-25T01:20:36.783153+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":[{"claim_id":"00344829d34d41d00f0cc4a972af96834357d5c3","claim":"MARA Holdings, Inc. engaged PricewaterhouseCoopers LLP as its auditor.","evidence_excerpt":"on March 6, 2025, the Committee appointed PricewaterhouseCoopers LLP (“PwC”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1507605/000149315225009706/0001493152-25-009706-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"engagement"},{"label":"Auditor","value":"PricewaterhouseCoopers LLP"}],"fact_type":"auditor_change"},{"claim_id":"2556b34287665bac6571535d1ff3823c1e236bdc","claim":"MARA Holdings, Inc. dismissed Marcum LLP as its auditor.","evidence_excerpt":"On March 6, 2025, the Company informed Marcum LLP (“Marcum”) of its dismissal as the Company’s independent registered public accounting firm for the 2025 fiscal year, effective immediately.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1507605/000149315225009706/0001493152-25-009706-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"dismissal"},{"label":"Auditor","value":"Marcum LLP"}],"fact_type":"auditor_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}