X0306 4 2022-11-01 0001692427 NCS Multistage Holdings, Inc. NCSM 0001700226 Hummer Ryan C/O NCS MULTISTAGE HOLDINGS, INC. 19350 STATE HIGHWAY 249, SUITE 600 HOUSTON TX 77070 1 1 0 0 Chief Executive Officer Common Stock 2022-11-01 4 A 0 12680 0 A 30315 D Equivalent Stock Units 2022-11-01 4 A 0 12680 0 A Common Stock 12680 19322 D 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 2,521 equivalent stock units which vest on February 28, 2023, 1,558 equivalent stock units which vest in two equal annual installments beginning on February 28, 2023, 2,563 equivalent stock units which vest in three equal annual installments beginning on February 28, 2023 and 12,680 equivalent stock units which vest in three equal annual installments beginning on November 1, 2023. /s/ Ori Lev, attorney-in-fact 2022-11-03