| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SLCA | Common Stock | Award | $0 | +12,392 | +13% | $0.000000 | 107,786 | 20 Dec 2021 | Direct | F1 |
| transaction | SLCA | Common Stock | Award | $0 | +9,551 | +8.9% | $0.000000 | 117,337 | 20 Dec 2021 | Direct | F2 |
| transaction | SLCA | Common Stock | Tax liability | $204,905 | -22,443 | -19% | $9.13 | 94,894 | 20 Dec 2021 | Direct | F3 |
| holding | SLCA | Common Stock | 32,534 | 20 Dec 2021 | By Trust |
| Id | Content |
|---|---|
| F1 | On February 12, 2019, the reporting person was granted performance-based restricted stock units subject to vesting based on the attainment of certain pre-established objectives. Certain performance criteria were met, resulting in vesting of the grant as to 12,392 shares of the issuer's common stock on December 20, 2021. |
| F2 | On February 12, 2019, the reporting person was granted performance-based restricted stock units subject to vesting based on the attainment of certain pre-established objectives. Certain performance criteria were met, resulting in vesting of the grant as to 9,551 shares of the issuer's common stock on December 20, 2021. |
| F3 | Represents tax withholding on vested restricted stock units and vested performance-based restricted stock units. |