X0508 4 2024-03-07 0001692427 NCS Multistage Holdings, Inc. NCSM 0001695567 Grewal Gurinder C/O NCS MULTISTAGE HOLDINGS, INC. 19350 STATE HIGHWAY 249, SUITE 600 HOUSTON TX 77070 1 0 Common Stock 2024-03-07 4 A 0 4061 0 A 13359 D Includes 9,298 vested restricted stock units and 4,061 restricted stock units which vest on February 28, 2025 and all of which settle within thirty days following the earlier of (i) the termination of the Reporting Person's service for any reason or (ii) a change of control. /s/ Ori Lev, attorney-in-fact 2024-03-08