[Form 4] Sun Country Airlines Holdings, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Erin Rose Neale, listed as SVP, Chief Legal Officer and a director at Sun Country Airlines Holdings, Inc. (SNCY), reported a sale of 3,515 shares of common stock on 09/12/2025 at a price of $13.95 per share. After the transaction the reporting person beneficially owned 30,369 shares. The Form 4 states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on 09/12/2024. The filing is signed by Erin Rose Neale on 09/15/2025.

Positive

• Timely disclosure of insider transaction via Form 4, signed and dated
• Use of a Rule 10b5-1 trading plan (adopted 09/12/2024) indicating pre-planned transactions
• Specific transaction details provided: shares sold (3,515), sale price ($13.95), and post-transaction holdings (30,369)

Negative

• Reduction in insider ownership by 3,515 shares which modestly decreases the reporting person's stake

Insights

Corporate Governance Expert

TL;DR: Routine, pre‑planned insider sale under a 10b5-1 plan, showing compliance and transparency.

The disclosure indicates that an officer and director executed a sale under a Rule 10b5-1 plan, which is a common mechanism allowing insiders to sell shares according to a pre-established schedule. The filing provides key specifics: number of shares sold (3,515), sale price ($13.95), and the plan adoption date (09/12/2024), which supports the view that this was not opportunistic trading tied to undisclosed material information. From a governance perspective, timely Form 4 reporting and explicit mention of the 10b5-1 plan are positive compliance signals.

Securities Analyst

TL;DR: Insider reduced holdings modestly; sale details are clear but not material to company financials.

The transaction reduced the reporting person's stake by 3,515 shares, leaving 30,369 shares beneficially owned. The sale price of $13.95 is recorded, but the form contains no information on the proportion of total outstanding shares or any connection to company performance. As a single, pre-planned sale by an officer, the event is typically neutral for valuation unless part of a larger pattern not shown in this filing.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Neale Erin Rose

(Last) (First) (Middle)

C/O SUN COUNTRY ARLINES HOLDINGS, INC.

2005 CARGO ROAD

(Street)

MINNEAPOLIS MN 55450

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Sun Country Airlines Holdings, Inc. [ SNCY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.01 per share	09/12/2025		S(1)		3,515	D	$13.95	30,369	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. The 10b5-1 trading plan was adopted on September 12, 2024.

	/s/ Erin Rose Neale	09/15/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Erin Rose Neale file on Form 4 for SNCY?

The Form 4 reports a sale of 3,515 shares of Sun Country Airlines Holdings (SNCY) common stock on 09/12/2025 at $13.95 per share.

How many shares does the reporting person own after the transaction?

After the reported sale the reporting person beneficially owned 30,369 shares.

Was the sale part of a pre‑planned trading program?

Yes. The Form 4 states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on 09/12/2024.

What is the reporting person's role at Sun Country?

The reporting person is listed as SVP, Chief Legal Officer and is also indicated as a director on the form.

When was the Form 4 signed?

The Form 4 is signed by Erin Rose Neale on 09/15/2025.