| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2025 | 15 May 2025 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 15 May 2024 | 14 May 2024 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 May 2023 | 12 May 2023 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Feb 2023 | 07 Feb 2023 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jun 2022 | 02 Jun 2022 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 May 2022 | 10 May 2022 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Aug 2021 | 12 Aug 2021 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 07 May 2021 | 06 May 2021 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 May 2021 | 04 May 2021 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Nov 2020 | 30 Oct 2020 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Oct 2020 | 29 Sep 2020 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2020 | 05 May 2020 | 001-33458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2019 | 07 Nov 2019 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 10 May 2019 | 08 May 2019 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2019 | 30 Apr 2019 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2018 | 09 May 2018 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Apr 2018 | 17 Apr 2018 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2017 | 10 May 2017 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Apr 2017 | 19 Apr 2017 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 Feb 2017 | 22 Feb 2017 | 001-33458 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 06 Feb 2017 | 31 Jan 2017 | 001-33458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2016 | 20 May 2016 | 000-20728 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2016 | 11 May 2016 | 000-20728 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2016 | 11 May 2016 | 000-20728 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2015 | 01 Jun 2015 | 000-20728 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2015 | 11 May 2015 | 000-20728 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2014 | 20 May 2014 | 000-20728 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 May 2014 | 02 May 2014 | 000-20728 |