Form 4 Filing for Allegiant plc

This filing details a Form 4 document for Allegiant plc, concerning transactions by Sue Main. On June 4, 2026, 1074 ordinary shares were acquired with a transaction price of $0.00, as indicated by footnote F1. This transaction is related to restricted stock units that vest on June 4, 2027. Following this acquisition, Sue Main holds 3429 shares. Additionally, the filing notes that 2000 ordinary shares are held by the Main-Schweitzer Revocable Trust, designated as indirect ownership (footnote F2). Sue Main is identified as a director of Allegiant plc. The filing was signed on June 8, 2026, by Tandra M. Foster as Attorney-In-Fact.