ULCC Form 144: Proposed Sale of 26,306 Shares Valued $149K

The filer submitted a Form 144 proposing the sale of 26,306 shares of common stock through UBS Financial Services on 09/02/2025, with an aggregate market value of $149,272.

Rhea-AI Filing Summary

The filer submitted a Form 144 proposing the sale of 26,306 shares of common stock through UBS Financial Services on 09/02/2025, with an aggregate market value of $149,272. The filing reports total shares outstanding of 228,155,458. The securities were acquired through an ESOP on 11/20/2023 (17,957 shares) and RSUs on 02/23/2024 (8,349 shares). The filer reports no sales in the past three months and includes the standard representation that they are not aware of any undisclosed material adverse information about the issuer.

Insights

Securities Analyst

TL;DR: Routine Rule 144 notice to sell a small block of shares relative to total outstanding, disclosed through a broker.

The filing documents a proposed sale of 26,306 common shares via UBS Financial Services with an aggregate market value of $149,272. Acquisition sources are clearly stated as ESOP (11/20/2023) and RSUs (02/23/2024), and the filer reports no sales in the prior three months. This is a compliance-driven disclosure under Rule 144; the filing provides the broker, planned sale date, and acquisition history necessary for public transparency.

Corporate Governance Expert

TL;DR: Standard insider/affiliate notice documenting planned disposition and confirming no undisclosed material information.

The notice includes the required attestations, acquisition dates and types, and the broker details. It states the filer does not possess undisclosed material adverse information and notes the absence of recent sales in the past three months. The submission follows the procedural requirements for a proposed sale under Rule 144 and serves to keep the market informed of an insider's planned transaction.

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Accepted by SEC EDGAR 09/02/2025 - 04:43 PM EDT 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	0001671358
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	Frontier Group Holdings Inc
SEC File Number	001-40304
Address of Issuer	4545 Airport Way Denver COLORADO 80239
Phone	720-374-4200
Name of Person for Whose Account the Securities are To Be Sold	Howard Diamond
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	UBS Financial Services Inc 1000 Harbor Blvd 3rd Floor Weehawken NJ 07086	26306	149272	228155458	09/02/2025	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	11/20/2023	ESOP	Frontier Group Holdings Inc			17957	11/20/2023	N/A
common	02/23/2024	RSU	Frontier Group Holdings Inc			8349	02/23/2024	N/A

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/02/2025
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/JOSEPH CASSIDY, for UBS Financial Services Inc, as attorney-in-fact for Howard Diamond
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)