X0306 4 2019-06-01 0 0000810332 MESA AIR GROUP INC MESA 0001054973 ORNSTEIN JONATHAN G 410 N. 44TH STREET SUITE 700 PHOENIX AZ 85008 0 1 0 0 CEO Common Stock 2019-06-01 4 M 0 155106 0.00 A 712616 D Common Stock 2019-06-01 4 F 0 61182 9.12 D 651434 D Restricted Stock Award 0.00 2019-06-01 4 M 0 155106 0.00 D 2019-06-01 Common Stock 87719 208659 D Restricted Stock Units 0.00 2019-06-01 4 A 0 87719 0.00 A 2020-06-01 Common Stock 87719 87719 D A restricted stock award of 407,654 shares was granted under the 2018 Equity Incentive Plan on August 10, 2018. Additional tranches of this award will vest as follows: 37,500 shares on July 21, 2019; 97,133 shares on June 1, 2020; 37,500 shares on July 21, 2020; and 36,526 shares on June 1, 2021. Each restricted stock unit represents the right to receive, on a one-for-one basis, common stock of the Company. The restricted stock units shall vest annually in equal one third increments beginning on June 1, 2020 until fully vested. /s/ Jonathan G. Ornstein 2019-06-04