X0306 4 2022-01-27 0 0001635881 Exterran Corp EXTN 0001297197 Barta David Alan 11000 EQUITY DRIVE HOUSTON TN 77041 0 1 0 0 SVP, CFO, and CAO Common Stock 2022-01-27 4 S 0 6800 4.96 D 82967 D Common Stock 2022-01-28 4 P 0 6800 5.10 A 89767 D The reporting person did not direct the sale of shares. The sale is a result of a liquidation of the reporting person's Health Savings Account as required to transfer to a new company provider. This liquidation is consistent with all participants in the Health Savings Account and not specific to the reporting person. The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $4.95 to $4.98, inclusive. Due to the disposition of shares from the reporting persons Health Savings Account, the reporting person purchased replacement shares in the identical amount as those disposed. The price reported is a weighted average price. The shares were repurchased in multiple transactions ranging from $5.09 to $5.11, inclusive. /s/ Kelly M. Battle Attorney-in-Fact 2022-01-28