| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 03/03/2023 | U.S. SILICA HOLDINGS, INC. | SLCA | Sale | Common Stock | 58.5k | $13.99 | $818.6k | | 03/03/2023 |
| 02/12/2023 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 23.5k | $11.97 | $281k | | 02/10/2023 |
| 02/10/2023 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 20.4k | $11.97 | $244.1k | | 02/10/2023 |
| 02/06/2023 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 37.3k | $11.83 | $440.9k | | 02/06/2023 |
| 02/12/2022 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 48.8k | $10.13 | $494.6k | | 02/10/2022 |
| 02/12/2022 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 123.2k | $0.00 | $0 | | 02/10/2022 |
| 02/10/2022 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 155.5k | $0.00 | $0 | | 02/10/2022 |
| 12/20/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 72.3k | $0.00 | $0 | | 12/20/2021 |
| 12/20/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 55.7k | $0.00 | $0 | | 12/20/2021 |
| 12/20/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 126.9k | $9.13 | $1.2M | | 12/20/2021 |
| 04/01/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 5.2k | $13.02 | $67.2k | | 04/01/2021 |
| 04/01/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock | 13.1k | $0.00 | $0 | | 04/01/2021 |
| 02/12/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 179k | $0.00 | $0 | | 02/12/2021 |
| 02/12/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 16k | $9.78 | $156.5k | | 02/12/2021 |
| 02/06/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 37.4k | $9.04 | $338k | | 02/06/2021 |
| 05/20/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 10k | $2.34 | $23.4k | | 05/20/2020 |
| 04/01/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 2.8k | $1.55 | $4.3k | | 04/01/2020 |
| 04/01/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 5.2k | $1.55 | $8k | | 04/01/2020 |
| 04/01/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock | 7k | $0.00 | $0 | | 04/01/2020 |
| 04/01/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock | 13.1k | $0.00 | $0 | | 04/01/2020 |
| 03/23/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 100k | $1.03 | $103.4k | | 03/23/2020 |
| 02/06/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 282.3k | $0.00 | $0 | | 02/06/2020 |
| 04/01/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 2.8k | $17.25 | $47.8k | | 03/31/2019 |
| 04/01/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 5.2k | $17.25 | $89.1k | | 03/31/2019 |
| 04/01/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 7k | $0.00 | $0 | | 03/31/2019 |
| 04/01/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 13.1k | $0.00 | $0 | | 03/31/2019 |
| 03/31/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 29.1k | $0.00 | $0 | | 03/31/2019 |
| 03/31/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 11.4k | $17.36 | $198.5k | | 03/31/2019 |
| 02/12/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 122k | $0.00 | $0 | | 02/12/2019 |
| 02/12/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 66.6k | $12.91 | $859.5k | | 02/12/2019 |
| 02/12/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 26.3k | $12.91 | $339.7k | | 02/12/2019 |
| 09/27/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 2.2k | $18.45 | $40.6k | | 09/27/2018 |
| 06/01/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 9.8k | $0.00 | $0 | | 06/01/2018 |
| 06/01/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 3.9k | $30.21 | $116.6k | | 06/01/2018 |
| 04/01/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 2.8k | $25.52 | $70.7k | | 03/31/2018 |
|