{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-24-080040","form_type":"8-K","ticker":"ABTC","cik":"0001755953","company_name":"American Bitcoin Corp.","filed_at":"2024-09-19T23:59:59+00:00","discovered_at":"2026-05-14T18:03:14.420082+00:00","generated_at":"2026-05-31T03:40:52.493708+00:00","sec_items":["1.01","5.02","7.01","9.01"],"event_type":"leadership","sentiment":"negative","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"Gryphon Digital Mining fires CEO Robby Chang for cause, appoints Steve Gutterman as CEO, Jimmy Vaiopoulos as Chairman","bullets":["Robby Chang terminated as CEO and President for cause on Sept 17, 2024; remains on Board.","Steve Gutterman appointed CEO; receives $450K base salary, $1M sign-on RSU grant, bonus tied to stock price/market cap.","Jimmy Vaiopoulos appointed Chairman; Board expanded to 7 members; Vaiopoulos previously CFO of Hut 8 Mining.","Brittany Kaiser removed as Chairperson; Gutterman resigns from Audit and Nominating committees; Vaiopoulos joins both.","Press release notes Gutterman has driven $700M+ revenue growth and 92 M&A transactions across his career."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-24-080040","json":"https://secwatch.observer/filing/0001213900-24-080040.json","markdown":"https://secwatch.observer/filing/0001213900-24-080040.md","text":"https://secwatch.observer/filing/0001213900-24-080040.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1755953/000121390024080040/0001213900-24-080040-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1755953/000121390024080040/ea0215000-8k_gryphon.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T03:40:52.493708+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":"a58cab724e","claim":"Robby Chang was terminated as Chief Executive Officer and President at American Bitcoin Corp..","evidence_excerpt":"On September 17, 2024, Robby Chang was terminated as Chief Executive Officer and President for cause, with immediate effect, by the board of directors (the “ Board ”) of Gryphon Digital Mining, Inc. (the “ Company ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1755953/000121390024080040/0001213900-24-080040-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"terminated"},{"label":"Role","value":"Chief Executive Officer and President"}],"fact_type":"executive_change"},{"claim_id":"effc490585","claim":"Steve Gutterman was appointed as Chief Executive Officer at American Bitcoin Corp..","evidence_excerpt":"On September 17, 2024, the Board appointed Steve Gutterman as Chief Executive Officer of the Company.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1755953/000121390024080040/0001213900-24-080040-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}