| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2022 | 16 Feb 2022 | 000-53548 |
| 4 | Open Document | Open Filing | 18 Nov 2021 | 18 Nov 2021 | 000-53548 | |
| 4 | Open Document | Open Filing | 07 Oct 2021 | 01 Oct 2021 | 000-53548 | |
| 4 | Open Document | Open Filing | 28 Sep 2021 | 13 Sep 2021 | 000-53548 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Sep 2021 | 30 Aug 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Aug 2021 | 23 Aug 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Aug 2021 | 13 Aug 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 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 | 03 Mar 2021 | 18 Feb 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2020 | 16 Nov 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Oct 2020 | 01 Oct 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2020 | 01 Jul 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2020 | 15 May 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2020 | 02 Apr 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jan 2020 | 10 Jan 2020 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Oct 2019 | 01 Oct 2019 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jul 2019 | 02 Jul 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 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 30 Apr 2019 | 05 Apr 2019 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Apr 2019 | 01 Apr 2019 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2019 | 01 Oct 2018 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Aug 2018 | 24 Aug 2018 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Jun 2018 | 13 Jun 2018 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 May 2018 | 21 May 2018 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Apr 2018 | 30 Mar 2018 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Feb 2018 | 15 Jan 2018 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Dec 2017 | 18 Dec 2017 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Nov 2017 | 20 Nov 2017 | 000-53548 |