secwatch.observer — SEC 8-K summary
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Issuer:     HF Sinclair Corp (DINO)
CIK:        0001915657
Form:       8-K
Filed at:   2026-05-12T11:00:18+00:00
Accession:  0001193125-26-218135
Event type: leadership
Sentiment:  neutral
Materiality: 0.80
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

HF Sinclair CEO Timothy Go departs; $4.7M severance, partial equity vesting
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- Go's employment ended May 11, 2026; receives $4,735,000 cash severance paid over 12 months.
- Partial vesting of equity: 29,616 RSUs vest immediately; 163,609 PSUs remain outstanding subject to performance.
- CFO Atanasov still on leave since Feb 24, 2026; no separation agreement reached yet.
- Go resigned from board; confirms no disagreement over operations, policies, or practices.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1915657/000119312526218135/0001193125-26-218135-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1915657/000119312526218135/d45151d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-218135

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer