X0306 4 2018-03-06 0 0001362468 Allegiant Travel CO ALGT 0000938673 GALLAGHER MAURICE J JR 1201 NORTH TOWN CENTER DRIVE LAS VEGAS NV 89144 1 1 1 0 CEO and Chairman Common Stock 2018-03-06 4 M 0 12645 85.24 A 2977169 D Common Stock 2018-03-06 4 S 0 11200 163.21 D 2965969 D Common Stock 2018-03-06 4 S 0 900 164.57 D 2965069 D Common Stock 2018-03-06 4 S 0 545 165.27 D 2964524 D Employee Stock Option (right to buy) 85.24 2018-03-06 4 M 0 12645 85.24 D 2018-03-08 Common Stock 12645 0 D Price reported is average price per share. These shares were sold at prices between $163.00 and $163.95 per share. Price reported is average price per share. These shares were sold at prices between $164.05 and $165.00 per share. Price reported is average price per share. These shares were sold at prices between $165.05 and $165.53 per share. All options vested as of 3/8/2016. Robert B. Goldberg, under power of attorney 2018-03-08