| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 29 Jul 2025 | 26 Jul 2025 | 000-17795 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Jul 2024 | 26 Jul 2024 | 000-17795 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Jun 2024 | 06 Jun 2024 | 000-17795 |
| 144 | Open Document | Open Filing | 06 Jun 2024 | |||
| 4 | Open Document | Open Filing | FORM 4 | 03 Jun 2024 | 30 May 2024 | 000-17795 |
| 144 | Open Document | Open Filing | 30 May 2024 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2024 | 13 May 2024 | 000-30269 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Aug 2023 | 28 Jul 2023 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2023 | 11 May 2023 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2022 | 29 Jul 2022 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2022 | 12 May 2022 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2021 | 30 Jul 2021 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2021 | 10 May 2021 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jan 2021 | 15 Jan 2021 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2021 | 04 Jan 2021 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Nov 2020 | 09 Nov 2020 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Oct 2020 | 15 Oct 2020 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2020 | 31 Jul 2020 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2020 | 15 Jul 2020 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2020 | 15 May 2020 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2020 | 16 Apr 2020 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Aug 2019 | 02 Aug 2019 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2019 | 15 May 2019 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2019 | 10 May 2019 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 08 May 2019 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2019 | 03 May 2019 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2018 | 03 Aug 2018 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2018 | 11 May 2018 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2018 | 09 May 2018 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2017 | 02 Aug 2017 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Aug 2017 | 28 Jul 2017 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2017 | 10 May 2017 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jul 2016 | 26 Jul 2016 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2016 | 17 May 2016 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2016 | 11 May 2016 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Dec 2015 | 04 Dec 2015 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2015 | 07 Aug 2015 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2015 | 29 Jul 2015 | 000-17795 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2015 | 29 Jul 2015 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2015 | 13 May 2015 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2014 | 15 May 2014 | 000-30269 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2014 | 02 Apr 2014 | 000-30269 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2014 | 02 Apr 2014 | 000-30269 |