| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 01 Apr 2025 | 31 Mar 2025 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2024 | 16 May 2024 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2023 | 18 May 2023 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2023 | 17 Feb 2023 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2022 | 18 May 2022 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2021 | 20 May 2021 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2020 | 15 May 2020 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2019 | 15 May 2019 | 000-26946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Nov 2018 | 12 Nov 2018 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Nov 2018 | 31 Oct 2018 | 000-49602 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2018 | 15 Feb 2018 | 000-26946 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2018 | 14 Feb 2018 | 000-26946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Nov 2017 | 31 Oct 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Aug 2017 | 04 Aug 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2017 | 28 Apr 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Jan 2017 | 27 Jan 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Nov 2016 | 11 Nov 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Nov 2016 | 28 Oct 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Aug 2016 | 29 Jul 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 May 2016 | 29 Apr 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Feb 2016 | 29 Jan 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Nov 2015 | 02 Nov 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Oct 2015 | 23 Oct 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Aug 2015 | 03 Aug 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2015 | 31 Jul 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2015 | 30 Apr 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Apr 2015 | 24 Apr 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2015 | 26 Feb 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2015 | 30 Jan 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Nov 2014 | 31 Oct 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Oct 2014 | 24 Oct 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2014 | 31 Jul 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2014 | 30 Apr 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Apr 2014 | 28 Apr 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Feb 2014 | 31 Jan 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Jan 2014 | 27 Jan 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Jan 2014 | 28 Jan 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Jan 2014 | 08 Jan 2014 | 000-49602 |