Howard Diamond's Stock Transactions in Frontier Group Holdings

Howard Diamond, EVP of Legal & Corporate Affairs at Frontier Group Holdings, Inc., engaged in several stock transactions on October 25, 2025. Diamond acquired 62,934 shares of common stock through the settlement of previously granted Restricted Stock Units (RSUs), which vested on that date. Additionally, 27,533 shares were withheld by the issuer to satisfy tax obligations related to the RSU vesting. The remaining RSUs are set to fully vest on October 25, 2026. These transactions were reported in a Form 4 filing with the SEC, highlighting Diamond's continued ownership and the company's equity compensation practices.