144 0001663266 XXXXXXXX LIVE 0001915657 HF SINCLAIR CORPORATION 001-41325 2323 Victory Avenue Suite 1400 Dallas TX 75219 (214) 871-3555 TIMOTHY GO Officer Director Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

17961 1254897.35 180275437 05/26/2026 NYSE Common 05/11/2026 Restricted Stock Issuer N 17961 05/11/2026 Not Applicable N Tim Go

2323 Victory Avenue Suite 1400 Dallas TX 75219

Common 05/18/2026 4768 339944.39 Tim Go

2323 Victory Avenue Suite 1400 Dallas TX 75219

Common 05/15/2026 16184 1123764.61 05/26/2026 /s/ Timothy Go