| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 30 Mar 2022 | 24 Dec 2020 | 000-13257 | |
| 4 | Open Document | Open Filing | FORM 4 - | 22 Mar 2022 | 17 Mar 2022 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 01 Jul 2021 | 29 Jun 2021 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 29 Jun 2021 | 25 Jun 2021 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 29 Dec 2020 | 28 Dec 2020 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 28 Dec 2020 | 23 Dec 2020 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 23 Dec 2020 | 22 Dec 2020 | 000-13257 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 Nov 2020 | 11 Nov 2020 | 000-13257 |
| 3 | Open Document | Open Filing | FORM 3 - | 09 Nov 2020 | 02 Nov 2020 | 000-13257 |