{"schema_version":"secwatch.filing_event.v1","accession":"0001694426-21-000179","form_type":"8-K","ticker":"DK","cik":"0001694426","company_name":"Delek US Holdings, Inc.","filed_at":"2021-10-12T23:59:59+00:00","discovered_at":"2026-05-14T18:04:13.720039+00:00","generated_at":"2026-06-28T21:32:09.824894+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Delek US EVP and President of Refining Louis LaBella passes away; Nithia Thaver assumes role","bullets":["Louis LaBella, EVP and President of Refining, died October 6, 2021 after brief illness.","LaBella served 10 years since Delek's acquisition of Lion Oil Company.","Nithia Thaver, Senior Vice President of Refining, has taken over LaBella's responsibilities."],"urls":{"canonical":"https://secwatch.observer/filing/0001694426-21-000179","json":"https://secwatch.observer/filing/0001694426-21-000179.json","markdown":"https://secwatch.observer/filing/0001694426-21-000179.md","text":"https://secwatch.observer/filing/0001694426-21-000179.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1694426/000169442621000179/0001694426-21-000179-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1694426/000169442621000179/dk-20211012.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T21:32:09.824894+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":"0df86c5a18","claim":"Nithia Thaver was appointed as Senior Vice President, Refining at Delek US Holdings, Inc..","evidence_excerpt":"Nithia Thaver, Delek's Senior Vice President, Refining, has assumed Mr. LaBella's responsibilities.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1694426/000169442621000179/0001694426-21-000179-index.htm","confidence":0.6,"family_label":"Executive change","details":[{"label":"Action","value":"assumed responsibilities"},{"label":"Role","value":"Senior Vice President, Refining"}],"fact_type":"executive_change"},{"claim_id":"8549217745","claim":"Louis LaBella departed as EVP and President of Refining at Delek US Holdings, Inc..","evidence_excerpt":"Louis LaBella, Delek's EVP and President of Refining, passed away following a brief illness.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1694426/000169442621000179/0001694426-21-000179-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"passed away"},{"label":"Role","value":"EVP and President of Refining"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}