| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 24 Feb 2022 | 23 Feb 2022 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2021 | 01 Jun 2021 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2021 | 24 Feb 2021 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2020 | 17 Dec 2020 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2020 | 26 Feb 2020 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Apr 2019 | 22 Apr 2019 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2019 | 28 Feb 2019 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2018 | 26 Feb 2018 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Nov 2017 | 06 Nov 2017 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2017 | 21 Feb 2017 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2016 | 24 Feb 2016 | 001-08052 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2015 | 25 Feb 2015 | 001-08052 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2015 | 25 Feb 2015 | 001-08052 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Nov 2014 | 10 Nov 2014 | 001-08052 |