| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 19 May 2023 | 17 May 2023 | 000-13257 | |
| 4 | Open Document | Open Filing | 16 May 2023 | 12 May 2023 | 000-13257 | |
| 4 | Open Document | Open Filing | FORM 4 - | 21 Mar 2022 | 17 Mar 2022 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 07 Dec 2020 | 19 Nov 2020 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 10 May 2018 | 09 May 2018 | 000-13257 |
| 3 | Open Document | Open Filing | FORM 3 - | 10 May 2018 | 09 May 2018 | 000-13257 |