| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 06 May 2025 | 02 May 2025 | 000-26966 |
| 4 | Open Document | Open Filing | 4 | 07 May 2024 | 03 May 2024 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 May 2023 | 05 May 2023 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 May 2022 | 09 May 2022 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2021 | 30 Apr 2021 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2020 | 30 Apr 2020 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2019 | 04 Jun 2019 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2018 | 03 May 2018 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Dec 2017 | 08 Dec 2017 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 May 2017 | 04 May 2017 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 May 2016 | 05 May 2016 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Apr 2016 | 30 Mar 2016 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 May 2015 | 07 May 2015 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Dec 2014 | 08 Dec 2014 | 000-26966 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 14 May 2014 | 07 May 2014 | 000-26966 |