Form 4 Filing for Allegiant plc

This Form 4 filing reports a transaction by Rubin Ellen, a director at Allegiant plc. On June 5, 2026, 292 ordinary shares were disposed of with a transaction code "F". The price per share was $130.27, resulting in 3419 shares owned post-transaction. The shares were withheld by the Issuer to cover tax obligations upon the vesting of a restricted stock unit award. The filing was signed on June 9, 2026.