X0306 4 2021-03-10 0 0001532286 Nine Energy Service, Inc. NINE 0001526088 MOORE THEODORE R. 2001 KIRBY DRIVE, SUITE 200 HOUSTON TX 77019 0 1 0 0 See Remarks Common Stock 2021-03-10 4 S 0 20117 3.27 D 114263 D Common Stock 2021-03-11 4 F 0 2063 3.24 D 112200 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.24 to $3.44, inclusive. The reporting person undertakes to provide to Nine Energy Service, Inc., any security holder of Nine Energy Service, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The Issuer withheld shares of common stock that would have otherwise been issuable to the reporting person to satisfy the Issuer's tax withholding obligations in connection with the vesting and settlement of the time-based restricted stock award granted on March 11, 2019. The number of shares of common stock withheld was determined based on the closing price of the Issuer's common stock on March 11, 2021. Senior Vice President, General Counsel and Secretary /s/ Theodore R. Moore 2021-03-12