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HF Sinclair 8-K Report, Executive Changes (May 13, 2026)

Reports
Leadership Changes
Filing Date
Filed May 13, 2026
Period End
May 13, 2026
Security
DINO
In the record · 2022–202610-K410-Q158-K125

DINO filed 4 annual reports (10-K), 15 quarterly reports (10-Q) and 125 current reports (8-K) between 2022 and 2026.

  1. Leadership change8-K · Feb ’23Feb ’23
  2. Leadership change8-K · Feb ’24Feb ’24
  3. Material agreement8-K · Jan ’25Jan ’25
  4. Material agreement8-K · Oct ’26Oct ’26

Summary

Summary of the 8-K filed May 13, 2026. Cited figures are marked; the original filing is the authoritative source.

HF Sinclair Corporation (DINO) reported in a Current Report on Form 8-K dated May 13, 2026 that it terminated the employment of Mr. Atanas Atanasov, Executive Vice President and Chief Financial Officer, effective immediately.

The filing states that if Mr. Atanasov meets the conditions of the Company's Severance Pay Plan, he will receive the severance benefits to which he is entitled under that plan, and it refers readers to the Severance Pay Plan description in the Company's definitive Proxy Statement filed with the SEC on March 31, 2026. The filing notes that Mr. Atanasov had been on leave from his duties since February 24, 2026, as previously reported in the Company's Annual Report on Form 10-K filed February 27, 2026. Effective February 24, 2026, the Board of Directors had appointed Mr. Vivek Garg, Vice President, Chief Accounting Officer and Controller, as acting Chief Financial Officer, so the termination formalizes a leadership change that was already in effect.

For investors, the principal items are the termination itself and the severance treatment, which depends on plan conditions. The filing does not state a permanent successor CFO, and it does not disclose severance amounts.

Key Highlights

  1. HF Sinclair terminated Atanas Atanasov's employment as Executive Vice President and Chief Financial Officer, effective May 13, 2026.
  2. Atanasov's severance benefits are conditional on meeting the conditions of the Company's Severance Pay Plan.
  3. Atanasov had been on leave since February 24, 2026, as previously reported in the Form 10-K filed February 27, 2026.
  4. Vivek Garg, Vice President, Chief Accounting Officer and Controller, has served as acting Chief Financial Officer since February 24, 2026.
  5. Severance Pay Plan terms are described in the 'Executive Compensation - Potential Payments Upon Termination or Change in Control' section of the proxy statement filed March 31, 2026.
  6. The filing does not disclose a permanent successor CFO or specific severance amounts.

Frequently Asked Questions

  1. Why was Atanas Atanasov's employment terminated?

    The filing states that the Company terminated his employment as Executive Vice President and Chief Financial Officer effective May 13, 2026, but it does not state a reason for the termination.

  2. Will Atanasov receive severance?

    The filing says that if Mr. Atanasov meets the conditions of the Company's Severance Pay Plan, he will receive the severance benefits to which he is entitled under that plan. The filing does not quantify the benefits and refers readers to the proxy statement filed March 31, 2026 for a description of the plan.

  3. Who is leading HF Sinclair's finances now?

    Vivek Garg, Vice President, Chief Accounting Officer and Controller, was appointed acting Chief Financial Officer effective February 24, 2026, as previously reported. The filing does not name a permanent CFO.

  4. Had Atanasov already been out of the role before this filing?

    Yes. The filing states that Mr. Atanasov had been on leave from his duties since February 24, 2026, as previously reported in the Company's Form 10-K filed February 27, 2026.