| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 05/11/2023 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 12.5k | $0.00 | $0 | | 05/11/2023 |
| 05/12/2022 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 7.7k | $0.00 | $0 | | 05/12/2022 |
| 05/28/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 15k | $10.30 | $154.4k | | 05/28/2021 |
| 05/13/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 12.1k | $0.00 | $0 | | 05/13/2021 |
| 05/07/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 28.2k | $11.97 | $337.2k | | 05/07/2021 |
| 05/07/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 85.4k | $0.00 | $0 | | 05/07/2020 |
| 11/06/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 10k | $5.29 | $52.9k | | 11/06/2019 |
| 05/10/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Common Stock | 4.6k | $0.00 | $0 | | 05/09/2019 |
| 05/09/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 8.5k | $0.00 | $0 | | 05/09/2019 |
| 12/13/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 5k | $11.29 | $56.4k | | 12/13/2018 |
| 09/28/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 10k | $18.88 | $188.8k | | 09/28/2018 |
| 05/10/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 4.6k | $0.00 | $0 | | 05/10/2018 |
| 05/10/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 4.6k | $0.00 | $0 | | 05/09/2019 |
| 05/04/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 816 | $0.00 | $0 | | 05/04/2018 |
| 05/04/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 2.4k | $0.00 | $0 | | 05/04/2018 |
| 02/23/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 1.5k | $26.00 | $39k | By Martinson Limited Partnership c/o Melinda M Kacal | 02/23/2018 |
| 02/23/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 3k | $25.99 | $78k | By wife | 02/23/2018 |
| 02/23/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 50 | $25.71 | $1.3k | By wife | 02/23/2018 |
| 02/23/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 5.8k | $26.00 | $149.5k | | 02/23/2018 |
| 02/23/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 10k | $25.56 | $255.6k | | 02/23/2018 |
| 05/17/2013 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 3.7k | $0.00 | $0 | | 05/17/2013 |
| 08/02/2012 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock, par value $0.01 | 10k | $9.89 | $98.9k | | 08/02/2012 |