X0306 4 2019-05-07 0 0001362468 Allegiant Travel CO ALGT 0001632467 Anderson Gregory Clark 1201 NORTH TOWN CENTER DRIVE LAS VEGAS NV 89144 0 1 0 0 EVP and CFO Common Stock 2019-05-07 4 F 0 777 144.67 D 19868 D Beneficial owner granted shares of restricted stock on November 7, 2016, with vesting on each of May 7, 2017, May 7, 2018, May 7, 2019 and May 7, 2020. Upon vesting, beneficial owner returned to Company a portion of the vested shares for tax withholding purposes. Shares of restricted stock effectively repurchased by Company at $144.67 per share to fund the beneficial owner's required tax withholding. Includes 85 shares acquired on April 30, 2019 by beneficial owner pursuant to issuer's Employee Stock Purchase Plan, which acquisition is exempt under Rule 16-b-3(c) and therefore was not reported at the time of the acquisition. Robert B. Goldberg, under power of attorney 2019-05-09