Christopher Michael Mangione - 02 Jan 2026 Form 4 Insider Report for Sun Country Airlines Holdings, Inc. (SNCY)

Role: Chief Acct. Off. & VP, Finance
Signature: /s/ Rose Neale, as attorney-in-fact for Christopher Mangione
Issuer symbol: SNCY
Transactions as of: 02 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 06 Jan 2026, 18:46:12 UTC
Previous filing: 06 Jan 2026
Next filing: 07 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mangione Christopher Michael	Chief Acct. Off. & VP, Finance	C/O SUN COUNTRY AIRLINES HOLDINGS, INC., 2005 CARGO ROAD, MINNEAPOLIS	/s/ Rose Neale, as attorney-in-fact for Christopher Mangione	06 Jan 2026	0002103680

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SNCY	Common Stock, par value $0.01 per share	Award	$0	+4,141	+58%	$0.000000	11,249	02 Jan 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the grant of restricted stock units made under the Sun Country Airlines Holdings, Inc. 2021 Omnibus Incentive Plan ("RSUs"). 1/3rd of these RSUs will vest and be settled on each of the first three anniversaries of the grant date, subject to continued employment.