Form 144 planned sale of 256 common shares

A shareholder has filed a notice of proposed sale under Rule 144 to sell 256 shares of common stock through Fidelity Brokerage Services LLC on 01/12/2026 on the NASDAQ market, with an indicated aggregate market value of $4,488.96.

Rhea-AI Filing Summary

A shareholder has filed a notice of proposed sale under Rule 144 to sell 256 shares of common stock through Fidelity Brokerage Services LLC on 01/12/2026 on the NASDAQ market, with an indicated aggregate market value of $4,488.96. These 256 shares came from restricted stock vesting on 01/09/2026, issued as compensation by the issuer. The filing also notes a prior sale during the past three months, in which Christopher Mangione sold 311 common shares on 01/06/2026 for $4,647.38.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many SNCY shares are proposed to be sold in this Form 144?

The notice covers a proposed sale of 256 shares of common stock through Fidelity Brokerage Services LLC on 01/12/2026 on the NASDAQ exchange.

What is the aggregate market value of the SNCY shares to be sold?

The 256 common shares covered by the notice have an indicated aggregate market value of $4,488.96 at the time referenced in the filing.

How were the SNCY shares in this Form 144 acquired?

The 256 common shares were acquired on 01/09/2026 through restricted stock vesting from the issuer as compensation.

What does the Form 144 say about recent SNCY share sales by this person?

During the past three months, Christopher Mangione sold 311 common shares on 01/06/2026 for $4,647.38, as disclosed in the filing.

How many SNCY shares are noted as outstanding in this Form 144?

The filing lists 52,714,634 common shares outstanding for the issuer, providing context for the size of the proposed sale.

Which broker and exchange are involved in this SNCY Rule 144 sale?

The proposed sale is through Fidelity Brokerage Services LLC, with the shares to be sold on the NASDAQ securities exchange.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 01/12/2026 - 11:50 AM Learn about SEC filing dates

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	0002103680
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Sun Country Airlines Holdings, Inc.
SEC File Number	001-40217
Address of Issuer	2005 CARGO ROAD MINNEAPOLIS MINNESOTA 55450
Phone	651-681-3900
Name of Person for Whose Account the Securities are To Be Sold	Mangione Christopher Michael
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	Officer

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	256	4488.96	52714634	01/12/2026	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	01/09/2026	Restricted Stock Vesting	Issuer			256	01/09/2026	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
Christopher Mangione 2005 Cargo Road Minneapolis MN 55450	Common	01/06/2026	311	4647.38

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	01/12/2026
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	/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Christopher Mangione
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)