X0306 4 2018-03-15 0 0001529628 Smart Sand, Inc. SND 0001687130 YOUNG WILLIAM JOHN C/O SMART SAND, INC. 1725 HUGHES LANDING BLVD, SUITE 800 THE WOODLANDS TX 77380 0 1 0 0 SEE REMARKS COMMON STOCK 2018-03-15 4 F 0 2164 6.16 D 92110 D Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date. The Reporting Person is Executive Vice President of Sales and Logistics of the Issuer. /s/ Lee E. Beckelman as Attorney-in-Fact for William John Young 2018-03-19