| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Oct 2023 | 18 Oct 2023 | 001-15751 |
| 4 | Open Document | Open Filing | 13 Jun 2023 | 09 Jun 2023 | 001-15751 | |
| 4 | Open Document | Open Filing | FORM 4 - | 10 Jun 2022 | 09 Jun 2022 | 001-15751 |
| 4 | Open Document | Open Filing | FORM 4 - | 06 Jul 2021 | 01 Jul 2021 | 001-15751 |
| 4 | Open Document | Open Filing | FORM 4 - | 01 Jun 2021 | 01 Jun 2021 | 001-15751 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 Jul 2020 | 06 Jul 2020 | 001-15751 |
| 4 | Open Document | Open Filing | 03 Jul 2019 | 02 Jul 2019 | 001-15751 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jan 2019 | 03 Jan 2019 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2018 | 01 Jul 2018 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Mar 2018 | 15 Feb 2018 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Feb 2018 | 17 Jan 2018 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jul 2017 | 05 Jul 2017 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2017 | 03 Jan 2017 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Jul 2016 | 13 Jul 2016 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Mar 2016 | 08 Mar 2016 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jul 2015 | 01 Jul 2015 | 001-15751 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Feb 2015 | 30 Jan 2015 | 001-15751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2014 | 01 Jul 2014 | 001-15751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jan 2014 | 15 Jan 2014 | 001-15751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jul 2013 | 01 Jul 2013 | 001-15751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jan 2013 | 14 Jan 2013 | 001-15751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2012 | 16 Jul 2012 | 001-15751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2012 | 16 Mar 2012 | 001-15751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2012 | 19 Jan 2012 | 001-15751 |