| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| KISZKA ROBERT | Executive VP of Operations | C/O SMART SAND, INC., 1000 FLORAL VALE BOULEVARD, SUITE 225, YARDLEY | /s/ Lee E. Beckelman, as Attorney-in-Fact for Robert Kiszka | 24 Feb 2026 | 0001687112 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SND | Common Stock | Tax liability | $45,244 | -8,618 | -1.6% | $5.25 | 522,030 | 22 Feb 2026 | Direct | F1 |
| holding | SND | Common Stock | 448,738 | 22 Feb 2026 | BY LLC | F2 |
| Id | Content |
|---|---|
| F1 | 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. |
| F2 | 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. |