| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Oct 2021 | 01 Oct 2021 | 000-21129 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Feb 2021 | 24 Feb 2021 | 000-21129 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2021 | 31 Dec 2020 | 000-21129 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Oct 2020 | 01 Oct 2020 | 000-21129 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Jul 2020 | 30 Jun 2020 | 000-21129 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Mar 2020 | 27 Mar 2020 | 000-21129 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jan 2020 | 02 Jan 2020 | 000-21129 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Dec 2019 | 02 Dec 2019 | 000-21129 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Oct 2019 | 01 Oct 2019 | 000-21129 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Oct 2019 | 01 Oct 2019 | 000-21129 |