| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2022 | 31 Mar 2022 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2022 | 31 Dec 2021 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2021 | 30 Sep 2021 | 001-06659 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Aug 2021 | 16 Aug 2021 | 001-39716 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2021 | 30 Jun 2021 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2021 | 31 Mar 2021 | 001-06659 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2021 | 01 Mar 2021 | 001-39716 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2021 | 31 Dec 2020 | 001-06659 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Nov 2020 | 17 Nov 2020 | 001-39716 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2020 | 30 Sep 2020 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2020 | 30 Jun 2020 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2020 | 31 Mar 2020 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2020 | 31 Dec 2019 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2019 | 30 Sep 2019 | 001-06659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2019 | 01 Jul 2019 | 001-06659 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jun 2019 | 03 Jun 2019 | 001-06659 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jul 2018 | 19 Jun 2018 | 811-23347 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jun 2018 | 19 Jun 2018 | 811-23347 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2017 | 26 May 2017 | 811-21274 |