| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 03 Mar 2025 | 27 Feb 2025 | 000-20859 |
| 4 | Open Document | Open Filing | 4 | 20 Feb 2025 | 18 Feb 2025 | 000-20859 |
| 4 | Open Document | Open Filing | 4 | 07 Jun 2024 | 06 Jun 2024 | 000-20859 |
| 4 | Open Document | Open Filing | 4 | 05 Jun 2024 | 04 Jun 2024 | 000-20859 |
| 144 | Open Document | Open Filing | 04 Jun 2024 | |||
| 4 | Open Document | Open Filing | 16 Feb 2024 | 14 Feb 2024 | 000-20859 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Sep 2023 | 15 Aug 2023 | 000-20859 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 24 Feb 2023 | 22 Feb 2023 | 000-20859 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 10 Feb 2023 | 08 Feb 2023 | 000-20859 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 Feb 2022 | 16 Feb 2022 | 000-20859 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Aug 2021 | 05 Aug 2021 | 001-37500 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Jun 2021 | 16 Jun 2021 | 001-37587 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2021 | 02 Feb 2021 | 000-20859 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Jun 2020 | 17 Jun 2020 | 001-37587 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Jun 2020 | 11 Jun 2020 | 001-37500 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2020 | 12 Feb 2020 | 000-20859 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Jun 2019 | 19 Jun 2019 | 001-37587 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jun 2019 | 13 Jun 2019 | 001-37500 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2019 | 30 Jan 2019 | 000-20859 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Jun 2018 | 13 Jun 2018 | 001-37587 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2018 | 07 Jun 2018 | 001-37500 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2018 | 31 Jan 2018 | 000-20859 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Jun 2017 | 20 Jun 2017 | 001-37587 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Jun 2017 | 15 Jun 2017 | 001-37500 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2017 | 09 Feb 2017 | 000-20859 |
| 4 | Open Document | Open Filing | 14 Jun 2016 | 10 Jun 2016 | 001-37587 | |
| 3 | Open Document | Open Filing | 13 Jun 2016 | 10 Jun 2016 | 001-37587 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2016 | 09 Jun 2016 | 001-37500 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2016 | 11 Feb 2016 | 000-20859 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 15 Jul 2015 | 15 Jul 2015 | 001-37500 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2015 | 13 Mar 2015 | 000-20859 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2014 | 11 Feb 2014 | 000-20859 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2013 | 01 Apr 2013 | 000-20859 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2013 | 13 Feb 2013 | 000-20859 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2012 | 17 May 2012 | 000-20859 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Feb 2012 | 24 Jan 2012 | 000-20859 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jan 2012 | 24 Jan 2012 | 000-20859 |