| Filed | Form | Description | |
|---|---|---|---|
| 4/25/25 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | → |
| 4/25/25 | DEF 14A | DEF 14A | → |
| 4/22/24 | DEFA14A | DEFA14A | → |
| 4/22/24 | DEF 14A | DEF 14A | → |
| 5/9/23 | DEF 14A | DEF 14A | → |
| Filed | Form | Description | |
|---|---|---|---|
| 3/9/26 | 4 | 4 | → |
| 11/3/25 | 4 | 4 | → |
| 11/3/25 | 3 | FORM 3 | → |
| 10/2/25 | 4 | 4 | → |
| 10/2/25 | 3 | FORM 3 | → |
| 8/19/25 | 4 | 4 | → |
| ↓ | |||
Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to the amorphous (chemical) physical structure, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals.