X0609 4 2026-08-19 0 0001529628 Smart Sand, Inc. SND 0001687132 YOUNG CHARLES EDWIN false C/O SMART SAND, INC. 1000 FLORAL VALE BOULEVARD, SUITE 225 YARDLEY PA 19067 1 1 1 0 CEO 0001688727 KEYSTONE CRANBERRY, LLC false C/O SMART SAND, INC. 1000 FLORAL VALE BOULEVARD, SUITE 225 YARDLEY PA 19067 1 0 1 0 0 Common Stock 2026-08-19 4 A 0 110063 0 A 1625096 D Common Stock 5842700 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. Mr. Young holds 67% of the membership interests in Keystone Cranberry, LLC ("Keystone"), is the sole managing member and has sole voting and investment power over the shares held by Keystone. Mr. Young disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein, if any. /s/ Charles Edwin Young 2026-08-20