| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 25 Apr 2025 | 24 Apr 2025 | 001-34187 | |
| 4 | Open Document | Open Filing | 29 Apr 2024 | 25 Apr 2024 | 001-34187 | |
| 4 | Open Document | Open Filing | 28 Apr 2023 | 27 Apr 2023 | 001-34187 | |
| 4 | Open Document | Open Filing | 29 Apr 2022 | 28 Apr 2022 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Dec 2021 | 14 Dec 2021 | 001-08503 |
| 4 | Open Document | Open Filing | 23 Apr 2021 | 22 Apr 2021 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2021 | 19 Feb 2021 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2021 | 09 Feb 2021 | 001-08503 |
| 4 | Open Document | Open Filing | 24 Apr 2020 | 23 Apr 2020 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2020 | 14 Feb 2020 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2020 | 11 Feb 2020 | 001-08503 |
| 4 | Open Document | Open Filing | 26 Apr 2019 | 25 Apr 2019 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2019 | 14 Feb 2019 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2019 | 08 Feb 2019 | 001-08503 |
| 4 | Open Document | Open Filing | 27 Apr 2018 | 26 Apr 2018 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2018 | 09 Feb 2018 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2018 | 31 Jan 2018 | 001-08503 |
| 4 | Open Document | Open Filing | 26 Jan 2018 | 28 Aug 2017 | 001-34187 | |
| 4 | Open Document | Open Filing | 01 May 2017 | 27 Apr 2017 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2017 | 10 Feb 2017 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2017 | 31 Jan 2017 | 001-08503 |
| 4 | Open Document | Open Filing | 02 May 2016 | 28 Apr 2016 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2016 | 11 Feb 2016 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2016 | 05 Feb 2016 | 001-08503 |
| 4 | Open Document | Open Filing | 24 Nov 2015 | 23 Nov 2015 | 001-34187 | |
| 4 | Open Document | Open Filing | 27 Apr 2015 | 23 Apr 2015 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2015 | 11 Mar 2015 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2015 | 06 Feb 2015 | 001-08503 |
| 4 | Open Document | Open Filing | 29 Dec 2014 | 26 Dec 2014 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2014 | 12 Jun 2014 | 001-08503 |
| 4 | Open Document | Open Filing | 25 Apr 2014 | 24 Apr 2014 | 001-34187 | |
| 4 | Open Document | Open Filing | 11 Apr 2014 | 10 Apr 2014 | 001-34187 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2014 | 05 Feb 2014 | 001-08503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2014 | 05 Feb 2014 | 001-08503 |