| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Jul 2024 | 02 Jul 2024 | 000-11668 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jan 2024 | 28 Nov 2023 | 000-11668 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Jan 2023 | 21 Dec 2022 | 000-11668 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Mar 2022 | 24 Feb 2022 | 000-11668 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Apr 2021 | 24 Mar 2021 | 000-11668 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2019 | 27 Feb 2019 | 000-11668 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jul 2018 | 03 Jul 2018 | 000-11668 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2017 | 20 Jan 2017 | 000-11668 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Apr 2016 | 13 Jan 2015 | 000-11668 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Dec 2015 | 30 Nov 2015 | 000-11668 |
| 4 | Open Document | Open Filing | 23 Jan 2014 | 21 Jan 2014 | 000-11668 |