X0609 4 2026-08-19 0 0001529628 Smart Sand, Inc. SND 0001687112 KISZKA ROBERT false C/O SMART SAND, INC. 1000 FLORAL VALE BOULEVARD, SUITE 225 YARDLEY PA 19067 0 1 0 0 Executive VP of Operations 0 Common Stock 2026-08-19 4 A 0 41929 0 A 581529 D Common Stock 448738 I BY LLC Represents shares of Restricted Stock granted to the Reporting Person on August 19, 2026 under the Issuer's 2026 Equity Incentive Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date. Held by a limited liability company ("LLC") of which the Reporting Person serves as the sole member with sole voting and investment control over the securities held thereby. The Reporting Person disclaims beneficial ownership of the securities held by the LLC except to the extent of his pecuniary interest therein. /s/ Lee E. Beckelman, as Attorney-in-Fact for Robert Kiszka 2026-08-20