| 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 |
| 05/09/2023 | WERNER ENTERPRISES INC | WERN | Grant | Common Stock | 2.3k | $0.00 | $0 | | 05/09/2023 |
| 12/16/2022 | U.S. SILICA HOLDINGS, INC. | SLCA | Sale | Common Stock | 16.1k | $11.43 | $183.9k | | 12/16/2022 |
| 05/12/2022 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 7.5k | $0.00 | $0 | | 05/12/2022 |
| 05/10/2022 | WERNER ENTERPRISES INC | WERN | Grant | Common Stock | 2.4k | $0.00 | $0 | | 05/10/2022 |
| 05/13/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 11.7k | $0.00 | $0 | | 05/13/2021 |
| 05/11/2021 | WERNER ENTERPRISES INC | WERN | Grant | Common Stock | 1.7k | $0.00 | $0 | | 05/11/2021 |
| 05/07/2021 | U.S. SILICA HOLDINGS, INC. | SLCA | Payment of Exercise | Common Stock | 18.3k | $11.97 | $219k | | 05/07/2021 |
| 05/12/2020 | WERNER ENTERPRISES INC | WERN | Grant | Common Stock | 1.9k | $0.00 | $0 | | 05/12/2020 |
| 05/07/2020 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 73.2k | $0.00 | $0 | | 05/07/2020 |
| 05/14/2019 | WERNER ENTERPRISES INC | WERN | Grant | Common Stock | 1.8k | $0.00 | $0 | | 05/14/2019 |
| 05/10/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 3.9k | $0.00 | $0 | | 05/09/2019 |
| 05/09/2019 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Common Stock | 7.3k | $0.00 | $0 | | 05/09/2019 |
| 05/10/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 3.9k | $0.00 | $0 | | 05/10/2018 |
| 05/08/2018 | WERNER ENTERPRISES INC | WERN | Grant | Common Stock | 1.4k | $0.00 | $0 | | 05/08/2018 |
| 05/04/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 2.2k | $0.00 | $0 | | 05/04/2018 |
| 05/04/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Exercise | Restricted Stock Units | 723 | $0.00 | $0 | | 05/04/2018 |
| 04/24/2018 | WERNER ENTERPRISES INC | WERN | Purchase | Common Stock | 7k | $36.19 | $253.3k | | 04/24/2018 |
| 02/26/2018 | U.S. SILICA HOLDINGS, INC. | SLCA | Purchase | Common Stock | 10k | $25.96 | $259.6k | | 02/26/2018 |
| 08/15/2017 | U.S. SILICA HOLDINGS, INC. | SLCA | Grant | Restricted Stock Units | 2.2k | $0.00 | $0 | | 08/15/2017 |