{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-24-035093","form_type":"8-K","ticker":"MARA","cik":"0001507605","company_name":"MARA Holdings, Inc.","filed_at":"2024-09-05T23:59:59+00:00","discovered_at":"2026-05-14T18:03:13.304560+00:00","generated_at":"2026-05-31T06:14:09.104591+00:00","sec_items":["5.02","5.03","7.01","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"MARA board adds Janet George and Barbara Humpton; lead independent director named; name changed to MARA Holdings","bullets":["Kevin DeNuccio and Said Ouissal resigned from board effective Sept 1, 2024 for personal reasons; no disagreement.","Janet George (former Intel VP) and Barbara Humpton (Siemens USA CEO) appointed to board effective Sept 1, 2024.","Doug Mellinger appointed lead independent director, effective Sept 1, 2024.","Company name changed from Marathon Digital Holdings to MARA Holdings effective Aug 29, 2024."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-24-035093","json":"https://secwatch.observer/filing/0001493152-24-035093.json","markdown":"https://secwatch.observer/filing/0001493152-24-035093.md","text":"https://secwatch.observer/filing/0001493152-24-035093.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1507605/000149315224035093/0001493152-24-035093-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1507605/000149315224035093/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T06:14:09.104591+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":"0074e4ce77","claim":"Said Ouissal resigned as Director at MARA Holdings, Inc..","evidence_excerpt":"each of Kevin DeNuccio and Said Ouissal notified the board of directors (the “Board”) of MARA Holdings, Inc. (the “Company”) of his decision to resign from the Board, effective as of September 1, 2024","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1507605/000149315224035093/0001493152-24-035093-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"3613df6091","claim":"Kevin DeNuccio resigned as Director at MARA Holdings, Inc..","evidence_excerpt":"each of Kevin DeNuccio and Said Ouissal notified the board of directors (the “Board”) of MARA Holdings, Inc. (the “Company”) of his decision to resign from the Board, effective as of September 1, 2024","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1507605/000149315224035093/0001493152-24-035093-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"4c0a340de8","claim":"Barbara Humpton was appointed as Director at MARA Holdings, Inc..","evidence_excerpt":"the Board appointed each of Janet George and Barbara Humpton to serve as a director on the Board, filling the vacancies created by the aforementioned resignations, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1507605/000149315224035093/0001493152-24-035093-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"5fe4506291","claim":"Janet George was appointed as Director at MARA Holdings, Inc..","evidence_excerpt":"the Board appointed each of Janet George and Barbara Humpton to serve as a director on the Board, filling the vacancies created by the aforementioned resignations, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1507605/000149315224035093/0001493152-24-035093-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}