{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-041999","form_type":"8-K","ticker":"DINO","cik":"0001915657","company_name":"HF Sinclair Corp","filed_at":"2023-02-17T23:59:59+00:00","discovered_at":"2026-05-14T18:03:47.443139+00:00","generated_at":"2026-06-19T08:22:01.969943+00:00","sec_items":["5.03","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"medium","headline":"HF Sinclair board adopts amended by-laws effective Feb 15, 2023","bullets":["Amended by-laws revise director nomination procedures to address new SEC Rule 14a-19.","Amended by-laws require officers to submit resignations in writing.","Amended by-laws make administrative updates to conform with Delaware General Corporation Law."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-041999","json":"https://secwatch.observer/filing/0001193125-23-041999.json","markdown":"https://secwatch.observer/filing/0001193125-23-041999.md","text":"https://secwatch.observer/filing/0001193125-23-041999.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1915657/000119312523041999/0001193125-23-041999-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1915657/000119312523041999/d796869d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T08:22:01.969943+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":"71c0c601cef25bb03424e655c09ec8e6d3f49c00","claim":"HF Sinclair Corp: Amended and restated by-laws to revise director nomination procedures, clarify meeting powers, update definitions, require officer resignations, adopt gender-neutral pronouns, and make administrative changes (effective 2023-02-15).","evidence_excerpt":"On February 15, 2023, the Board of Directors of HF Sinclair Corporation (the “ Company ”) approved the Company’s Second Amended and Restated By-laws (the “ Amended and Restated By-laws ”), effective as of such date.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1915657/000119312523041999/0001193125-23-041999-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2023-02-15"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}