X0202 SCHEDULE 13G/A 0001140361-24-019633 0002016572 XXXXXXXX LIVE 1 Common Stock, $0.001 par value per share 07/09/2026 0001670076 Frontier Group Holdings, Inc. 35909R108 4545 Airport Way Denver CO 80239 Rule 13d-1(c) Group Holdings - Frontier LLC DE 22706526 0.00 22706526 0.00 22706526 9.9 OO Frontier Group Holdings, Inc. 4545 Airport Way, Denver, CO 80239 This is Amendment No. 1 to the Schedule 13G filed with the Securities and Exchange Commission on April 12, 2024 by Group Holdings - Frontier LLC (the "Reporting Person") with respect to the common stock, $0.001 par value per share (the "Common Stock") of Frontier Group Holdings, Inc. (the "Issuer"). 1350 Avenue of the Americas, 31st Floor, New York, NY 10019 The Reporting Person is a Delaware limited liability company. Y The responses to Items 5-11 of the cover page of this Schedule 13G are incorporated herein by reference. As of the date hereof, Reporting Person directly holds 22,706,526 shares of Common Stock representing 9.9% of the outstanding Common Stock of the Issuer. Calculation of the percentage of shares of Common Stock beneficially owned is based on 229,789,335 shares of Common Stock outstanding as of May 1, 2026, as reported in the Quarterly Report on Form 10-Q filed by the Issuer with the Securities and Exchange Commission on May 5, 2026. The Reporting Person may be deemed to be the beneficial owner of the percentage of shares of Common Stock listed on such Reporting Person's cover page. See each cover page hereof. See each cover page hereof. See each cover page hereof. See each cover page hereof. Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Group Holdings - Frontier LLC /s/ Michael Fazio 07/13/2026