| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Apr 2025 | 21 Apr 2025 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Apr 2024 | 01 Apr 2024 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Mar 2023 | 27 Mar 2023 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jan 2023 | 05 Jan 2023 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Apr 2022 | 04 Apr 2022 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Apr 2022 | 28 Mar 2022 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Jul 2021 | 30 Jun 2021 | 001-16497 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Jun 2021 | 29 Mar 2021 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Mar 2021 | 29 Mar 2021 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Aug 2020 | 29 Aug 2020 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Apr 2020 | 16 Apr 2020 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Sep 2019 | 29 Aug 2019 | 001-16497 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Jul 2019 | 20 Jun 2019 | 001-16497 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Feb 2017 | 01 Feb 2017 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Aug 2015 | 12 Aug 2015 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Aug 2014 | 12 Aug 2014 | 000-25232 |