| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 15 May 2023 | 11 May 2023 | 000-15087 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Nov 2022 | 25 Nov 2022 | 000-15087 |
| 5 | Open Document | Open Filing | FORM 5 | 29 Mar 2019 | 31 Dec 2006 | 000-15087 |
| 5 | Open Document | Open Filing | FORM 5 | 29 Mar 2019 | 31 Dec 2005 | 000-15087 |