| 4 | Statement of changes in beneficial owner... | Beres Laura M | Donnelley Financial Solutions /fa | 01/13/2025 | |
| 4 | Statement of changes in beneficial owner... | Nanophase Technologies Corp | Donnelley Financial Solutions /fa | 01/13/2025 | |
| 4 | Statement of changes in beneficial owner... | Beres Laura M | Donnelley Financial Solutions File16 /fa | 12/29/2023 | |
| 4 | Statement of changes in beneficial owner... | Nanophase Technologies Corp | Donnelley Financial Solutions File16 /fa | 12/29/2023 | |
| 4 | Statement of changes in beneficial owner... | Beres Laura M | Donnelley Financial Solutions File16 /fa | 12/22/2022 | |
| 4 | Statement of changes in beneficial owner... | Nanophase Technologies Corp | Donnelley Financial Solutions File16 /fa | 12/22/2022 | |
| 4 | Statement of changes in beneficial owner... | Beres Laura M | Donnelley Financial Solutions File16 /fa | 12/30/2021 | |
| 4 | Statement of changes in beneficial owner... | Nanophase Technologies Corp | Donnelley Financial Solutions File16 /fa | 12/30/2021 | |
| 4 | Statement of changes in beneficial owner... | Beres Laura M | Donnelley Financial Solutions File16 /fa | 10/30/2020 | |
| 4 | Statement of changes in beneficial owner... | Nanophase Technologies Corp | Donnelley Financial Solutions File16 /fa | 10/30/2020 | |