Frontier Group officer proposes $297K share sale

Frontier Group Holdings, Inc. (ULCC) lists a proposed sale by Howard Diamond, an officer, of 35,401 common shares, with an aggregate market value of $297,368 and an approximate sale date of November 9, 2026.

Available on EDGAR 11/09/2026 - 05:03 PM EST Accepted by SEC EDGAR 11/09/2026 - 05:02 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Frontier Group Holdings, Inc. (ULCC) lists a proposed sale by Howard Diamond, an officer, of 35,401 common shares, with an aggregate market value of $297,368 and an approximate sale date of November 9, 2026. UBS Financial Services Inc. is named as the broker. The shares were acquired from Frontier Group Holdings, Inc. as RSUs on October 25, 2025. Joseph Cassidy signed for UBS Financial Services Inc. as attorney-in-fact for Howard Diamond.

Key Figures

Common shares proposed for sale: 35,401 shares Aggregate market value: $297,368 Shares acquired as RSUs: 35,401 shares +1 more

4 metrics

Common shares proposed for sale 35,401 shares Approximate sale date: November 9, 2026

Aggregate market value $297,368 Proposed sale of common shares

Shares acquired as RSUs 35,401 shares Acquired October 25, 2025

Acquisition date October 25, 2025 RSUs acquired from Frontier Group Holdings, Inc.

Key Terms

RSU, Aggregate Market Value, attorney-in-fact

3 terms

RSU technical

"Nature of Acquisition Transaction: RSU"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Aggregate Market Value financial

"Aggregate Market Value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

attorney-in-fact technical

"as attorney-in-fact for Howard Diamond"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

How many ULCC shares did Howard Diamond propose to sell?

Howard Diamond, an officer, listed 35,401 common shares for sale, with an aggregate market value of $297,368 and an approximate sale date of November 9, 2026. UBS Financial Services Inc. is named as the broker.

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

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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	7204452201
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	35401	297368	230417551	11/09/2026	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	10/25/2025	RSU	Frontier Group Holdings Inc			35401	10/25/2025	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	11/09/2026
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/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)