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

Rhea-AI Filing Summary

Sun Country Airlines Holdings, Inc. (SNCY) – Form 4 filing dated 07/03/2025

Chief Revenue Officer & SVP Grant Whitney reported two small open-market sales of Sun Country common stock:

• 394 shares sold on 07/01/2025 at $11.7529 per share. The transaction was a mandatory “sell-to-cover” to satisfy tax withholding on recently vested RSUs.
• 893 shares sold on 07/02/2025 at $12.21 per share under a pre-arranged Rule 10b5-1 trading plan adopted on 03/04/2024.

Following the transactions, Whitney’s direct holding declined from 28,079 shares to 26,799 shares, a net decrease of 1,280 shares (≈4.6% of his prior position). No derivative securities were reported.

The filing signals routine equity administration rather than a meaningful shift in insider sentiment: the first sale was non-discretionary for tax purposes, while the second was executed pursuant to a pre-scheduled plan. From a valuation perspective, the total proceeds of roughly $15,000 are immaterial to SNCY’s market capitalization and do not affect operating fundamentals.

Positive

• Tax-withholding sale indicates RSU vesting, reflecting continued equity-based compensation alignment between management and shareholders.

Negative

• Net insider share reduction of 1,287 shares could be viewed as modestly bearish, although size and context limit significance.

Insights

Financial Analyst

TL;DR: Minor insider sales appear routine; negligible impact on valuation.

The reported disposals represent fewer than 1.3k shares—about 0.02% of SNCY’s outstanding float and under 5% of the officer’s stake. One sale was obligatorily executed to cover withholding taxes upon RSU vesting, while the other followed a previously adopted Rule 10b5-1 plan. Neither transaction suggests a change in the executive’s confidence nor provides insight into operational performance. Given the low dollar value and mechanistic nature, I classify the filing as neutral for investors.

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).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Whitney Grant

(Last) (First) (Middle)

C/O SUN COUNTRY AIRLINES 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)
	Chief Revenue Officer & SVP

3. Date of Earliest Transaction (Month/Day/Year)
07/01/2025

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	07/01/2025		S		394(1)	D	$11.7529	27,692	D
Common Stock, par value $0.01 per share	07/02/2025		S(2)		893	D	$12.21	26,799	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. Represents the number of shares sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units. This sale is mandated to satisfy the tax withholding obligations which are funded by a "sell to cover" transaction and does not represent a discretionary trade by the reporting person.

2. This sale was effected pursuant to a Rule 10b5-1 trading plan. The 10b5-1 trading plan was adopted on March 4, 2024.

	/s/ Rose Neale, as attorney-in-fact for Grant Whitney	07/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

How many Sun Country (SNCY) shares did the insider sell?

1,287 shares were sold across two transactions on 07/01 and 07/02/2025.

What were the sale prices disclosed in the Form 4 filing?

Shares were sold at $11.7529 and $12.21 per share, respectively.

Why was a portion of the stock sold by Grant Whitney?

394 shares were sold to cover tax withholding on vested RSUs; this was not a discretionary trade.

Was the insider sale under a Rule 10b5-1 plan?

Yes, the 893-share sale on 07/02/2025 was executed pursuant to a Rule 10b5-1 plan adopted on 03/04/2024.

How many SNCY shares does the executive own after the transactions?

Grant Whitney directly owns 26,799 shares following the reported sales.