| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| WHELAN RONALD P | The Reporting Person is Executive Vice President of Last Mile Services of the Issuer. | C/O SMART SAND, INC., 1000 FLORAL VALE BOULEVARD, SUITE 225, YARDLEY | /s/ Lee E. Beckelman as Attorney-in-Fact for Ronald P. Whelan | 24 Feb 2026 | 0001687143 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SND | Common Stock | Tax liability | $45,969 | -8,756 | -1.9% | $5.25 | 448,510 | 22 Feb 2026 | Direct | F1 |
| 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. |
The Reporting Person is Executive Vice President of Last Mile Services of the Issuer.