X0407 4 2023-07-12 0001612720 NextDecade Corp. NEXT 0001712346 Garcia Eric C/O NEXTDECADE CORPORATION 1000 LOUISIANA STREET, SUITE 3900 HOUSTON TX 77002 1 SVP, Chief Accounting Officer 0 Common Stock 2023-07-12 4 A 0 27500 0 A 162635 D Common Stock 2023-07-12 4 F 0 10822 8.48 D 151813 D Common Stock 2023-07-12 4 A 0 150100 0 A 301913 D Common Stock 2023-07-12 4 A 0 65625 0 A 367538 D Common Stock 2023-07-12 4 F 0 25824 8.48 D 341714 D Represents restricted shares of common stock that vested upon Issuer's achievement of an Issuer milestone on July 12, 2023. Represents shares of common stock delivered by the Reporting Person to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted shares of common stock on July 12, 2023. Represents restricted stock units that became earned to the Reporting Person upon Issuer's achievement of a milestone-based performance criteria on July 12, 2023. Such restricted stock units vest in three near-equal annual installments beginning on July 12, 2024. Represents restricted stock units that vested upon Issuer's achievement of a milestone-based performance criteria on July 12, 2023. Represents shares of common stock delivered by the Reporting Person to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units on July 12, 2023. /s/ Vera de Gyarfas, Attorney-in-fact 2023-07-14