HF Sinclair Corp 8-K

What Happened HF Sinclair Corporation (DINO) filed an 8-K reporting that it terminated the employment of Atanas Atanasov as Executive Vice President and Chief Financial Officer, effective immediately on May 13, 2026. The filing states that Mr. Atanasov may receive severance benefits if he meets the conditions of the Company’s Severance Pay Plan (details described in the company’s March 31, 2026 definitive Proxy Statement). The filing also notes Mr. Atanasov had been on leave since February 24, 2026, and that Vivek Garg, the Company’s Vice President, Chief Accounting Officer and Controller, was appointed acting Chief Financial Officer effective February 24, 2026.

Key Details

• Termination effective date: May 13, 2026 (employment terminated immediately).
• Leave and interim coverage: Mr. Atanasov on leave since Feb 24, 2026; Vivek Garg appointed acting CFO on Feb 24, 2026.
• Severance: Any severance payable is subject to the Company’s Severance Pay Plan (refer to the March 31, 2026 Proxy Statement for plan terms).
• Filing: Form 8-K signed by Eric L. Nitcher (Executive VP, General Counsel) and filed May 13, 2026.

Why It Matters A CFO departure is material because it can affect financial reporting continuity and investor confidence. HF Sinclair already has an acting CFO (Vivek Garg) in place since February, which supports continuity in accounting and reporting functions. The company did not disclose any dollar amount for severance or name a permanent replacement in this filing; investors should watch future filings and announcements for details on any severance expense, an official CFO appointment, or changes to financial controls.