X0306 4 2022-04-14 0001612720 NextDecade Corp. NEXT 0001772113 van der Walt Ivan C/O NEXTDECADE CORPORATION 1000 LOUISIANA STREET, SUITE 3900 HOUSTON TX 77002 1 Chief Operating Officer Common Stock 2022-04-14 4 A 0 14400 0 A 248553 D Common Stock 2022-04-14 4 F 0 5379 7.37 D 243174 D Common Stock 2022-04-14 4 A 0 65638 0 A 308812 D Represents restricted shares of common stock that vested upon achievement of an Issuer milestone on April 14, 2022. 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 April 14, 2022. Shares are represented by restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. The restricted stock units vest on the following schedule: 30% of such restricted stock units vest on June 15, 2022, 30% of such restricted stock units vest on September 15, 2022 and 40% of such restricted stock units vest on December 15, 2022. /s/ Vera de Gyarfas, Attorney-in-fact 2022-04-18