| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 06 Oct 2023 | 27 Sep 2023 | 000-55768 | |
| 4 | Open Document | Open Filing | 12 Dec 2022 | 08 Dec 2022 | 000-55768 | |
| 4/A | Open Document | Open Filing | 24 Nov 2021 | 22 Nov 2021 | 000-55768 | |
| 4 | Open Document | Open Filing | 16 Nov 2021 | 12 Nov 2021 | 000-55768 | |
| 4 | Open Document | Open Filing | 22 Sep 2021 | 21 Jul 2021 | 000-55768 | |
| 4 | Open Document | Open Filing | 04 May 2021 | 30 Apr 2021 | 000-55768 | |
| 4 | Open Document | Open Filing | 21 Oct 2020 | 19 Oct 2020 | 000-55768 | |
| 3 | Open Document | Open Filing | 13 Mar 2020 | 30 Apr 2019 | 000-55768 | |
| 4 | Open Document | Open Filing | 27 May 2014 | 22 May 2014 | 001-35756 | |
| 4 | Open Document | Open Filing | 21 May 2014 | 19 May 2014 | 001-35756 |