A Form 4 filed on September 22, 2026 reports that Jeffrey Mathew, SVP and Chief Information Officer of Frontier Group Holdings, Inc. (NASDAQ:ULCC), received 65,445 shares of common stock from the vesting of Restricted Stock Units and had 18,818 shares withheld to cover tax obligations on the same date.

Key Highlights

  • RSU Settlement: 65,445 Restricted Stock Units vested and were settled in common stock on September 22, 2026.
  • Tax Withholding: 18,818 shares were withheld by the issuer at $6.12 per share solely to satisfy tax withholding obligations.
  • No Open-Market Sale: According to the filing, no shares were sold by the reporting person.
  • Remaining RSUs: 196,335 Restricted Stock Units remain, with the outstanding balance vesting in three equal annual installments beginning September 22, 2027.
  • Direct Ownership After Transaction: Jeffrey Mathew directly holds 46,627 shares of common stock following the reported transactions.

RSU Vesting and Share Withholding for Frontier Group Holdings CIO

According to the Form 4 filing, Jeffrey Mathew, serving as SVP and Chief Information Officer of Frontier Group Holdings, Inc., reported two transactions in common stock on September 22, 2026. The first, coded "M," reflects the settlement of 65,445 previously granted Restricted Stock Units upon vesting. The filing states that this transaction "relates solely to the settlement of previously granted Restricted Stock Units upon vesting" and that "no shares were sold by the Reporting Person."

The second transaction, coded "F," records 18,818 shares withheld by the issuer at a price of $6.12 per share. The filing describes these as "shares of Issuer Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares" and specifies that this "does not represent a sale by the Reporting Person." Following both transactions, Mathew directly owns 46,627 shares of common stock.

On the derivative securities side, 65,445 Restricted Stock Units were converted under the "M" transaction code, reducing Mathew's remaining RSU balance to 196,335, held directly. The filing notes that the remaining units vest in three equal annual installments beginning on September 22, 2027. Each Restricted Stock Unit represents a contingent right to receive one share of common stock and carries no expiration date. The Form 4 was signed by Howard Diamond as attorney-in-fact for Jeffrey Mathew.

What Was Disclosed

The filing discloses the vesting of 65,445 RSUs and the withholding of 18,818 shares for taxes, resulting in direct ownership of 46,627 common shares and 196,335 remaining RSUs for Frontier Group Holdings CIO Jeffrey Mathew as of September 22, 2026.