| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2024 | 15 May 2024 | 000-17820 |
| 5 | Open Document | Open Filing | ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 30 Jan 2024 | 31 Dec 2023 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 20 Jan 2023 | 18 Jan 2023 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Jan 2022 | 19 Jan 2022 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 22 Jan 2021 | 20 Jan 2021 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jan 2020 | 15 Jan 2020 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jan 2019 | 16 Jan 2019 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2018 | 17 Jan 2018 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2017 | 23 Feb 2017 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2017 | 22 Feb 2017 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jan 2017 | 18 Jan 2017 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2016 | 26 Feb 2016 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2016 | 24 Feb 2016 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2015 | 08 Dec 2015 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2015 | 29 May 2015 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2015 | 01 May 2015 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2014 | 12 Dec 2014 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2014 | 11 Jun 2014 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jul 2012 | 22 May 2012 | 000-17820 |