X0508 4 2025-11-05 0001692427 NCS Multistage Holdings, Inc. NCSM 0001701187 Nipper Robert C/O NCS MULTISTAGE HOLDINGS, INC. 19350 STATE HIGHWAY 249, SUITE 600 HOUSTON TX 77070 1 0 Common Stock 2025-11-05 4 S 0 1000 40 D 33455 D Common Stock 88596 I By Family Limited Partnership Includes 4,339 restricted stock units which vest on February 28, 2026. These securities are held by the Nipper Family Limited Partnership, a limited partnership of which the Reporting Person is the trustee of the sole general partner, Nipper Family Management Trust. The Reporting Person disclaims beneficial ownership of the Issuer's securities held by the Nipper Family Limited Partnership except to the extent of his pecuniary interest therein. /s/ Ori Lev, attorney-in-fact 2025-11-05