[144] Sun Country Airlines Holdings, Inc. SEC Filing

Rhea-AI Filing Summary

The Form 144 filing for Sun Country Airlines Holdings, Inc. (SNCY) reports a proposed Rule 144 sale of 309 common shares (market value ≈ $3,619.62) through Fidelity Brokerage Services on or about 1 July 2025.

The shares were acquired via restricted-stock vesting on 30 June 2025. They represent less than 0.001 % of the company’s 53.2 million shares outstanding, indicating an immaterial effect on float or ownership structure.

The same insider previously sold 3,468 shares in two transactions between April and June 2025, generating roughly $40,000 in gross proceeds. No additional financial metrics, trading plans, or corporate commentary are included.

Because of the very small size of the planned disposition and lack of operational information, the notice is considered a routine administrative disclosure with negligible investment impact.

Insights

Securities Analyst

TL;DR: Insider plans to sell 309 shares; size is immaterial, filing is routine, market impact neutral.

The Rule 144 notice covers a forthcoming sale worth roughly $3.6 k, equal to ~0.0006 % of SNCY’s outstanding shares. Past 3-month insider sales total $40 k, still de-minimis for a company with a multi-billion-dollar market cap. No indications of distress, strategic shift, or undisclosed material information accompany the filing. Consequently, liquidity, control, and valuation metrics remain unchanged. I classify the disclosure as non-impactful for investors; trading dynamics and fundamental outlook should remain intact.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	309	3619.62	53201003	07/01/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/30/2025	Restricted Stock Vesting	Issuer			309	06/30/2025	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
John M. Gyurci 2005 Cargo Road Minneapolis MN 55450	Common	04/01/2025	318	3810.24
John M. Gyurci 2005 Cargo Road Minneapolis MN 55450	Common	06/12/2025	3150	36193.50

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many Sun Country Airlines (SNCY) shares are being sold under this Form 144?

309 common shares are slated for sale.

What is the approximate market value of the shares in the SNCY Form 144 filing?

The aggregate market value is about $3,619.62.

When is the planned sale date for the SNCY insider transaction?

The filing lists an approximate sale date of 1 July 2025.

How significant is the sale relative to Sun Country’s share count?

The 309 shares equal less than 0.001 % of the 53.2 million shares outstanding.

Were there recent insider sales at Sun Country Airlines before this notice?

Yes. The same insider sold 318 shares on 1 April 2025 and 3,150 shares on 12 June 2025.