| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 05/11/2023 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 12.1k | $0.00 | $0 | | 05/11/2023 |
| 05/12/2022 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 7.5k | $0.00 | $0 | | 05/12/2022 |
| 05/13/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 11.7k | $0.00 | $0 | | 05/13/2021 |
| 05/07/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 82.3k | $0.00 | $0 | | 05/07/2020 |
| 10/31/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 10k | $4.46 | $44.6k | | 10/31/2019 |
| 05/10/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Common Stock | 4.5k | $0.00 | $0 | | 05/09/2019 |
| 05/09/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 8.2k | $0.00 | $0 | | 05/09/2019 |
| 05/10/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 4.5k | $0.00 | $0 | | 05/09/2019 |
| 05/10/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 4.5k | $0.00 | $0 | | 05/10/2018 |
| 05/04/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 2.3k | $0.00 | $0 | | 05/04/2018 |
| 05/04/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 779 | $0.00 | $0 | | 05/04/2018 |
| 12/20/2017 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 600 | $31.16 | $18.7k | | 12/20/2017 |
| 05/05/2017 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Common Stock | 4.4k | $37.15 | $165.3k | | 05/04/2017 |
| 05/05/2017 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 4.4k | $0.00 | $0 | | 05/04/2017 |
| 05/04/2017 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 2.3k | $0.00 | $0 | | 05/04/2017 |
| 05/05/2016 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 4.4k | $0.00 | $0 | | 05/05/2016 |
| 02/12/2016 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Common Stock | 4k | $16.10 | $64.6k | | 02/12/2016 |
| 02/12/2016 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 4k | $0.00 | $0 | | 02/12/2016 |
| 05/08/2015 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 366 | $0.00 | $0 | | 05/08/2015 |
| 03/14/2015 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 2.9k | $0.00 | $0 | | 03/14/2015 |
| 02/12/2015 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 4k | $0.00 | $0 | | 02/12/2015 |
| 12/30/2014 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 5k | $25.41 | $127k | | 12/30/2014 |
| 05/08/2014 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 366 | $0.00 | $0 | | 05/08/2014 |
| 03/14/2014 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 2.8k | $0.00 | $0 | | 03/14/2014 |
| 03/14/2014 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 2.9k | $0.00 | $0 | | 03/14/2014 |
| 03/03/2014 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Non-Employee Director Stock Option (right to buy) | 5k | $18.12 | $90.6k | | 03/03/2014 |
| 05/17/2013 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 2.8k | $0.00 | $0 | | 05/17/2013 |
| 05/01/2012 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Non-Employee Director Stock Option (right to buy) | 10k | $18.12 | $181.2k | | 05/01/2012 |