| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 11 May 2022 | 09 May 2022 | 001-16027 | |
| 4 | Open Document | Open Filing | 12 Nov 2021 | 09 Nov 2021 | 001-16027 | |
| 4 | Open Document | Open Filing | 03 Nov 2021 | 03 Nov 2021 | 001-16027 | |
| 4 | Open Document | Open Filing | 04 May 2021 | 03 May 2021 | 001-16027 | |
| 4 | Open Document | Open Filing | 05 Nov 2020 | 03 Nov 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | 04 Aug 2020 | 01 Aug 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | 06 May 2020 | 05 May 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | 03 Feb 2020 | 01 Feb 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | 06 Nov 2019 | 05 Nov 2019 | 001-16027 | |
| 4 | Open Document | Open Filing | 06 Aug 2019 | 01 Aug 2019 | 001-16027 | |
| 3 | Open Document | Open Filing | 06 Aug 2019 | 01 Aug 2019 | 001-16027 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2014 | 15 Sep 2014 | 001-31353 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Sep 2014 | 02 Sep 2014 | 001-31353 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2014 | 02 Jun 2014 | 001-31353 |