| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 09 May 2025 | 08 May 2025 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Feb 2025 | 19 Feb 2025 | 001-12488 |
| 4 | Open Document | Open Filing | 4 | 20 May 2024 | 16 May 2024 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Feb 2024 | 14 Feb 2024 | 001-12488 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2023 | 18 May 2023 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Feb 2023 | 15 Feb 2023 | 001-12488 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2022 | 02 Jun 2022 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Feb 2022 | 16 Feb 2022 | 001-12488 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 16 Feb 2022 | 16 Feb 2022 | 001-12488 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2021 | 20 May 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Aug 2020 | 11 Aug 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2020 | 21 May 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 May 2019 | 16 May 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 May 2018 | 18 May 2018 | 000-21810 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 21 May 2018 | 18 May 2018 | 000-21810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2017 | 10 Mar 2017 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Sep 2016 | 15 Sep 2016 | 001-09764 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Sep 2016 | 10 Sep 2016 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Sep 2016 | 13 Sep 2016 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2016 | 10 Sep 2016 | 001-09764 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Aug 2016 | 30 Jun 2016 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2016 | 11 Mar 2016 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Sep 2015 | 15 Sep 2015 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Sep 2015 | 10 Sep 2015 | 001-09764 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2015 | 30 Jun 2015 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Sep 2014 | 09 Sep 2014 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2014 | 07 Sep 2014 | 001-09764 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Aug 2014 | 30 Jun 2014 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2014 | 19 Feb 2014 | 001-09764 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Sep 2013 | 01 Sep 2012 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Sep 2013 | 10 Sep 2013 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2013 | 01 Sep 2013 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Aug 2013 | 26 Aug 2013 | 001-09764 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2013 | 30 Jun 2013 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2013 | 19 Jun 2013 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2012 | 10 Sep 2012 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2012 | 01 Sep 2012 | 001-09764 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2012 | 30 Jun 2012 | 001-09764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2012 | 14 Feb 2012 | 001-09764 |