X0306 4 2022-03-11 0 0001532286 Nine Energy Service, Inc. NINE 0001727661 Fox Ann G 2001 KIRBY DRIVE, SUITE 200 HOUSTON TX 77019 1 1 0 0 See Remarks Common Stock 2022-03-11 4 F 0 4590 3.29 D 604597 D Nine Energy Service, Inc. (the "Issuer") withheld shares of its common stock ("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, 2022. President, Chief Executive Officer and Director /s/ Ann G. Fox by Theodore R. Moore, as Attorney-in-fact 2022-03-15