secwatch / observer
8-K filed May 13, 2026, 5:18 PM ET ticker DINO CIK 0001915657
leadership confidence high sentiment negative materiality 0.60

HF Sinclair terminates CFO Atanas Atanasov effective May 13, 2026

HF Sinclair Corp

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Role change (interim)

Vivek Garg

acting Chief Financial Officer
DINO · HF Sinclair Corp
Effective
2026-05-13
Filed
May 13, 2026, 5:18 PM ET
As previously reported, effective February 24, 2026, the Board of Directors of the Company appointed Mr. Vivek Garg, the Company’s Vice President, Chief Accounting Officer and Controller, to serve as the Company’s acting Chief Financial Officer.
Departed

Atanas Atanasov

Executive Vice President and Chief Financial Officer
DINO · HF Sinclair Corp
Effective
2026-05-13
Filed
May 13, 2026, 5:18 PM ET
On May 13, 2026, HF Sinclair Corporation (the “ Company ”) terminated the employment of Mr. Atanas Atanasov as Executive Vice President and Chief Financial Officer of the Company, effective immediately.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Vivek Garg changed role as acting Chief Financial Officer at HF Sinclair Corp.

Action
continues as acting CFO
Role
acting Chief Financial Officer
Exact text from the filing
As previously reported, effective February 24, 2026, the Board of Directors of the Company appointed Mr. Vivek Garg, the Company’s Vice President, Chief Accounting Officer and Controller, to serve as the Company’s acting Chief Financial Officer.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 1.0

Atanas Atanasov was terminated as Executive Vice President and Chief Financial Officer at HF Sinclair Corp.

Action
terminated
Role
Executive Vice President and Chief Financial Officer
Exact text from the filing
On May 13, 2026, HF Sinclair Corporation (the “ Company ”) terminated the employment of Mr. Atanas Atanasov as Executive Vice President and Chief Financial Officer of the Company, effective immediately.
View on SEC.gov

HF Sinclair Corp filing history →

Source: SEC EDGAR
accession 0001628280-26-034691
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