{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-139431","form_type":"8-K","ticker":"DINO","cik":"0001915657","company_name":"HF Sinclair Corp","filed_at":"2024-05-15T23:59:59+00:00","discovered_at":"2026-05-14T18:03:21.200652+00:00","generated_at":"2026-06-01T23:41:41.830245+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"HF Sinclair CAO Indira Agarwal resigns; CFO Atanas Atanasov assumes duties","bullets":["Indira Agarwal resigns as VP, Controller and CAO effective May 28, 2024 to pursue another opportunity.","Resignation not due to any disagreement with the company or board.","EVP/CFO Atanas H. Atanasov will serve as interim principal accounting officer until a permanent successor is named.","Atanasov's biographical details are incorporated from the company's April 4, 2024 proxy statement."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-139431","json":"https://secwatch.observer/filing/0001193125-24-139431.json","markdown":"https://secwatch.observer/filing/0001193125-24-139431.md","text":"https://secwatch.observer/filing/0001193125-24-139431.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1915657/000119312524139431/0001193125-24-139431-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1915657/000119312524139431/d820405d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T23:41:41.830245+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":"682d8b9940","claim":"Indira Agarwal resigned as Vice President, Controller and Chief Accounting Officer at HF Sinclair Corp.","evidence_excerpt":"On May 9, 2024, Indira Agarwal, Vice President, Controller and Chief Accounting Officer (principal accounting officer) of HF Sinclair Corporation (the “ Corporation ”), notified the Corporation that she is resigning from her role effective May 28, 2024 to pursue another opportunity.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1915657/000119312524139431/0001193125-24-139431-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Vice President, Controller and Chief Accounting Officer"}],"fact_type":"executive_change"},{"claim_id":"ef394c03f6","claim":"Atanas H. Atanasov was appointed as Principal Accounting Officer (interim) at HF Sinclair Corp.","evidence_excerpt":"Until a permanent successor is appointed, Atanas H. Atanasov, the Corporation’s Executive Vice President and Chief Financial Officer, will assume the responsibilities of the Corporation’s principal accounting officer, effective as of May 28, 2024, in addition to his current role.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1915657/000119312524139431/0001193125-24-139431-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Principal Accounting Officer (interim)"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}