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

Rhea-AI Filing Summary

Form 144 notice for Sun Country Airlines Holdings, Inc. (SNCY): The filing reports a proposed sale of 224 common shares through Fidelity Brokerage Services with an aggregate market value of $2,620.67, scheduled approximately for 10/02/2025 on NASDAQ. The shares were acquired by the seller on 09/30/2025 via restricted stock vesting from the issuer and were paid as compensation. The form also discloses prior sales by the same person in the past three months: 704 shares sold on 09/03/2025 for $9,384.32 and 5,000 shares sold on 09/10/2025 for $65,904.50. The filer certifies no undisclosed material adverse information and includes the standard attestation language.

Positive

• Restricted stock vesting and nature of payment are disclosed, clarifying the origin of the shares
• Broker and sale date are specified (Fidelity Brokerage Services; approx. 10/02/2025)
• Prior sales within the past three months are reported with amounts and gross proceeds
• Attestation that the seller does not possess undisclosed material adverse information is included

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider sale notice showing recent vested shares and earlier dispositions; not materially impactful to SNCY capital structure.

The filing documents a small proposed sale of 224 vested shares delivered as compensation, consistent with insider liquidity following restricted stock vesting. Prior disclosed sales of 704 and 5,000 shares generated modest gross proceeds, and the current proposed transaction is small relative to the issuer's reported outstanding shares (53,316,378). There is no new financial performance data or change in ownership percentage disclosed. For investors, this is a routine disclosure of insider transactions required by Rule 144.

Compliance Officer

TL;DR: Filing appears to meet Rule 144 disclosure requirements, showing acquisition method, payment, and recent sales history.

The form lists the acquisition date, nature of acquisition (restricted stock vesting), payment date and nature (compensation), broker details, and prior sales within three months, which aligns with Form 144 content requirements. The signature attestation about material nonpublic information is included. The notice does not show any missing mandatory fields based on the provided content, though some identifying filer fields are blank in the extracted table (CIK/CCC/contact information not displayed here).

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	224	2620.67	53316378	10/02/2025	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	09/30/2025	Restricted Stock Vesting	Issuer			224	09/30/2025	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 Gyurci 2005 Cargo Road Minneapolis MN 55450	Common	09/03/2025	704	9384.32
John Gyurci 2005 Cargo Road Minneapolis MN 55450	Common	09/10/2025	5000	65904.50

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

What shares does the Form 144 for SNCY propose to sell?

The notice proposes sale of 224 common shares of Sun Country Airlines Holdings, Inc. (SNCY).

When and where is the proposed sale scheduled for SNCY shares?

The proposed sale is scheduled approximately for 10/02/2025 on NASDAQ through Fidelity Brokerage Services.

How were the 224 SNCY shares acquired?

They were acquired on 09/30/2025 via restricted stock vesting from the issuer and paid as compensation.

What prior SNCY sales by the seller are disclosed in the Form 144?

The form lists two prior sales: 704 shares on 09/03/2025 for $9,384.32, and 5,000 shares on 09/10/2025 for $65,904.50.

Does the filing state whether the seller has undisclosed material information?

Yes. By signing the notice the person represents they do not know any material adverse information about the issuer that has not been publicly disclosed.