| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2023 | 02 Aug 2023 | 000-17204 |
| 4 | Open Document | Open Filing | 13 Jan 2023 | 10 Jan 2023 | 001-33899 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2022 | 19 May 2022 | 000-17204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2022 | 05 Jan 2022 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2022 | 31 Dec 2021 | 001-33899 |
| 4/A | Open Document | Open Filing | 01 Dec 2021 | 30 Nov 2021 | 001-33899 | |
| 4 | Open Document | Open Filing | 30 Nov 2021 | 30 Nov 2021 | 001-33899 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2021 | 31 Mar 2021 | 000-17204 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jan 2021 | 07 Jan 2021 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jan 2021 | 07 Jan 2021 | 001-33899 |
| 4 | Open Document | Open Filing | 08 Dec 2020 | 04 Dec 2020 | 001-33899 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Aug 2020 | 19 Aug 2020 | 000-17204 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2020 | 09 Jun 2020 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2020 | 09 Jun 2020 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2020 | 17 Apr 2020 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2020 | 31 Dec 2019 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2020 | 03 Jan 2020 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2019 | 03 Jan 2019 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2019 | 31 Dec 2018 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2018 | 05 Jul 2018 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Apr 2018 | 16 Apr 2018 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2018 | 31 Dec 2017 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2017 | 15 Aug 2017 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2017 | 31 Dec 2016 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jan 2017 | 23 Jan 2017 | 001-33899 |
| SC 13D/A | Open Document | Open Filing | 27 May 2016 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2016 | 12 May 2016 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2016 | 04 Jan 2016 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2016 | 31 Dec 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Nov 2015 | 30 Oct 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2015 | 09 Jun 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2015 | 02 Jun 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2015 | 13 Feb 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Dec 2014 | 12 Aug 2014 | 000-17204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jun 2014 | 13 Jun 2014 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2014 | 21 Feb 2014 | 001-33899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jan 2014 | 17 Jan 2014 | 000-17204 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Aug 2013 | 31 Jul 2013 | 000-17204 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Jul 2013 | 07 Nov 2012 | 000-17204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jan 2013 | 23 Jan 2013 | 001-33899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 30 Apr 2012 | 02 Aug 2011 | 000-17204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Mar 2012 | 23 Feb 2012 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jan 2012 | 13 Jan 2012 | 001-33899 |