[Form 4] Frontier Group Holdings, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Frontier Group Holdings (ULCC): Form 4 insider update. SVP, Human Resources Steve Schuller reported RSU vesting on 10/25/2025. He acquired 26,042 shares of common stock upon settlement of previously granted restricted stock units; the RSUs have no expiration and convert 1-for-1 into common shares.

To cover taxes, 8,060 shares were withheld at $4.15, which the filing states does not represent a sale by the reporting person. Following these transactions, he directly beneficially owned 82,312 common shares. He also reported 26,042 RSUs outstanding, which are scheduled to fully vest on October 25, 2026.

Insights

Equity compensation analyst

Routine RSU vesting with tax withholding; ownership updated.

The filing records a standard equity compensation event: 26,042 shares delivered upon RSU vesting, with 8,060 shares withheld to satisfy tax obligations. The withholding is explicitly noted as not a sale by the insider.

Post-event, direct beneficial ownership is 82,312 common shares, and 26,042 RSUs remain outstanding. The remaining RSUs are disclosed to fully vest on October 25, 2026, aligning with typical multi-year vesting schedules for executives.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Schuller Steve

(Last) (First) (Middle)

4545 AIRPORT WAY

(Street)

DENVER CO 80239

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Frontier Group Holdings, Inc. [ ULCC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Human Resources

3. Date of Earliest Transaction (Month/Day/Year)
10/25/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/25/2025		M(1)		26,042	A	(2)	90,372	D
Common Stock	10/25/2025		F		8,060(3)	D	$4.15	82,312	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(2)	10/25/2025		M			26,042	(4)	(2)	Common Stock	26,042	$0.00	26,042	D

Explanation of Responses:

1. Relates solely to the settlement of previously granted Restricted Stock Units upon vesting. No shares were sold by the Reporting Person.

2. Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date.

3. Represents shares of Issuer Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of Issuer Common Stock delivered to the Reporting on October 25, 2025, from the vesting of Restricted Stock Units, and does not represent a sale by the Reporting Person.

4. The remaining Restricted Stock Units fully vest on October 25, 2026.

Remarks:

	/s/ Howard Diamond, as Attorney-in-fact for Steve Schuller	10/28/2025
	** Signature of Reporting Person	Date
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