144 0001850688 XXXXXXXX LIVE 0001743907 Sun Country Airlines Holdings, Inc. 001-40217 2005 CARGO ROAD MINNEAPOLIS MN 55450 651-681-3900 Gyurci John Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

5000 65904.41 53316378 09/10/2025 NASDAQ Common 09/10/2025 Option Granted - 11/21/2018 Issuer N 5000 09/10/2025 Cash N John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 06/12/2025 3150 36193.50 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 07/01/2025 309 3619.62 John M. Gyurci

2005 Cargo Road, Minneapolis MN 55450

Common 09/03/2025 704 9384.32 09/10/2025 /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for John M. Gyurci