Barry Biffle - Dec 4, 2025 Form 4 Insider Report for Frontier Group Holdings, Inc. (ULCC)

Role
CEO, Director
Signature
/s/ Howard Diamond, as Attorney-in-fact for Barry L. Biffle
Stock symbol
ULCC
Transactions as of
Dec 4, 2025
Transactions value $
-$1,058,415
Form type
4
Date filed
12/8/2025, 04:57 PM
Previous filing
Oct 28, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Biffle Barry CEO, Director C/O FRONTIER GROUP HOLDINGS INC., 4545 AIRPORT WAY, DENVER /s/ Howard Diamond, as Attorney-in-fact for Barry L. Biffle 2025-12-08 0001511298

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ULCC Common Stock Sale -$278K -55.2K -5.92% $5.04 877K Dec 4, 2025 Direct F1, F2
transaction ULCC Common Stock Sale -$226K -44.8K -5.11% $5.05 832K Dec 5, 2025 Direct F1, F3
transaction ULCC Common Stock Sale -$554K -100K -12.02% $5.54 732K Dec 8, 2025 Direct F1, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 8, 2025.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.03 to $5.06, inclusive. The Reporting Person undertakes to provide to Frontier Group Holdings, Inc., any security holder of Frontier Group Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the price range set forth in this footnote.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.03 to $5.09, inclusive. The Reporting Person undertakes to provide to Frontier Group Holdings, Inc., any security holder of Frontier Group Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the price range set forth in this footnote.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.53 to $5.58, inclusive. The Reporting Person undertakes to provide to Frontier Group Holdings, Inc., any security holder of Frontier Group Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the price range set forth in this footnote.