| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2022 | 03 Jan 2022 | 000-53548 |
| 4 | Open Document | Open Filing | 08 Oct 2021 | 30 Sep 2021 | 000-53548 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2021 | 02 Jul 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2021 | 21 May 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Apr 2021 | 12 Apr 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jan 2021 | 19 Jan 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2021 | 11 Jan 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Oct 2020 | 01 Oct 2020 | 000-53548 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Oct 2020 | 12 Jun 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Aug 2020 | 12 Jun 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2020 | 02 Jun 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2020 | 03 Dec 2019 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2020 | 30 Mar 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2020 | 23 Jul 2019 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Sep 2019 | 23 Sep 2019 | 000-53548 |
| SC 13D/A | Open Document | Open Filing | SC 13 D/A | 11 Sep 2019 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Sep 2019 | 03 Sep 2019 | 000-53548 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Aug 2019 | 30 Jun 2019 | 000-53548 |
| SC 13D/A | Open Document | Open Filing | SC13D/A | 29 Jul 2019 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Jul 2019 | 23 Jul 2019 | 000-53548 |
| SC 13D/A | Open Document | Open Filing | SC 13 D/A | 01 Jul 2019 | ||
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Jun 2019 | 07 Jun 2019 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Jun 2019 | 15 May 2019 | 000-53548 |
| SC 13D/A | Open Document | Open Filing | SC 13 D/A | 21 May 2019 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 May 2019 | 15 May 2019 | 000-53548 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 May 2019 | 22 May 2018 | 000-53548 |
| SC 13D | Open Document | Open Filing | SC 13D | 17 May 2019 |