| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2025 | 12 Jun 2025 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jun 2024 | 18 Jun 2024 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2023 | 08 Jun 2023 | 000-18183 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2023 | 08 Jun 2023 | 000-18183 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Apr 2020 | 10 Apr 2020 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Jan 2020 | 10 Jan 2020 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Oct 2019 | 11 Oct 2019 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Aug 2019 | 01 Aug 2019 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Jul 2019 | 12 Jul 2019 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Apr 2019 | 12 Apr 2019 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2019 | 05 Mar 2019 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Jan 2019 | 11 Jan 2019 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Oct 2018 | 12 Oct 2018 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Aug 2018 | 02 Aug 2018 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Jul 2018 | 13 Jul 2018 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Apr 2018 | 01 Apr 2018 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2017 | 01 Apr 2017 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2016 | 01 Apr 2016 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2016 | 19 Feb 2016 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2015 | 01 Apr 2015 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2014 | 01 Apr 2014 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2013 | 01 Apr 2013 | 001-13057 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2012 | 08 May 2012 | 001-14287 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Apr 2012 | 01 Apr 2012 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2012 | 10 Feb 2012 | 001-13057 |