X0306 4 2021-04-01 0 0001692427 NCS Multistage Holdings, Inc. NCSM 0001811682 LEV ORI C/O NCS MULTISTAGE HOLDINGS, INC. 19350 STATE HIGHWAY 249, SUITE 600 HOUSTON TX 77070 0 1 0 0 Executive VP, GC and Secretary Common Stock 2021-04-01 4 M 0 113 0.00 A 2895 D Common Stock 2021-04-01 4 F 0 113 26.16 D 2782 D Common Stock 2021-04-01 4 D 0 34 26.16 D 2748 D Equivalent Stock Units 2021-04-01 4 M 0 113 0.00 D Common Stock 113 4037 D Equivalent stock units vested on April 1, 2021 and settled for cash. These shares were surrendered to satisfy the tax obligations related to the vesting of restricted stock units. Includes 129 restricted stock units which vest on February 28, 2022, 113 restricted stock units which vest on April 1, 2022 and 1,795 restricted stock units which vest in three equal annual installments beginning on February 28, 2022. These equivalent stock units settle in cash and represent the economic equivalent of one share of common stock, provided that the amount of cash settled for any equivalent stock unit will not exceed the maximum payout established by the Compensation, Nominating and Governance Committee. Includes 129 equivalent stock units which vest on February 28, 2022, 113 equivalent stock units which vest on April 1, 2022, 2,000 equivalent stock units which vest in two equal annual installments beginning on February 28, 2022 and 1,795 equivalent stock units which vest in three equal annual installments beginning on February 28, 2022. /s/ Ori Lev 2021-04-05