secwatch.observer — SEC 8-K summary
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Issuer:     HF Sinclair Corp (DINO)
CIK:        0001915657
Form:       8-K
Filed at:   2026-05-13T21:18:13+00:00
Accession:  0001628280-26-034691
Event type: leadership
Sentiment:  negative
Materiality: 0.60
Item codes: 5.02
LLM model:  deepseek-v4-flash:cloud@v2

HF Sinclair terminates CFO Atanas Atanasov effective May 13, 2026
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- Atanas Atanasov's employment as EVP and CFO terminated immediately; he had been on leave since Feb 24, 2026.
- Vivek Garg, VP and CAO, continues as acting CFO, a role he assumed on Feb 24, 2026.
- If conditions of the Severance Pay Plan are met, Atanasov will receive severance benefits.
- No successor CFO has been announced; further leadership changes may follow.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1915657/000162828026034691/0001628280-26-034691-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1915657/000162828026034691/dino-20260513.htm
  HTML page:      https://secwatch.observer/filing/0001628280-26-034691

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