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

9 154.21 52939832 02/10/2025 NASDAQ Common 02/10/2025 Options Granted 11/21/2018 Issuer N 9 02/10/2025 Cash N John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 12/12/2024 40000 624352.00 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/03/2025 373 5274.82 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/10/2025 1008 16026.61 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/21/2025 400 6800.52 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/22/2025 6000 102804.00 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/23/2025 200 3400.00 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/24/2025 1593 27088.33 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/27/2025 27482 469774.56 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/29/2025 200 3400.00 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/30/2025 3952 67289.91 John M. Gyurci

2005 Cargo Road Minneapolis MN 55450

Common 01/31/2025 164 2804.29 02/10/2025 09/10/2024 /s/ Adam Gehring, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for John M. Gyurci