| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 14 Jun 2024 | 12 Jun 2024 | 001-39678 | |
| 4 | Open Document | Open Filing | 05 Jun 2023 | 01 Jun 2023 | 001-39678 | |
| 4 | Open Document | Open Filing | 08 Jul 2022 | 07 Jul 2022 | 001-39678 | |
| 4 | Open Document | Open Filing | 11 Feb 2022 | 09 Feb 2022 | 001-39678 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2020 | 24 Feb 2020 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2020 | 10 Feb 2020 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2020 | 21 Jan 2020 | 000-11808 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 18 Nov 2019 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2019 | 15 Oct 2019 | 000-11808 |
| SC 13D/A | Open Document | Open Filing | 10 Jul 2019 | |||
| SC 13D | Open Document | Open Filing | NONE | 14 Feb 2019 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jun 2018 | 19 Feb 2018 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2017 | 27 Feb 2017 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Apr 2016 | 03 Mar 2016 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Mar 2016 | 14 Dec 2015 | 000-11808 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Mar 2016 | 19 May 2015 | 000-11808 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2016 | 09 Feb 2016 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2016 | 09 Feb 2016 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Sep 2015 | 31 Jul 2015 | 000-11808 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jun 2015 | 19 May 2015 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Aug 2013 | 27 Aug 2013 | 001-13357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2013 | 27 Jun 2013 | 001-13357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jun 2013 | 24 Jun 2013 | 001-13357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2013 | 23 Apr 2013 | 001-13357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Mar 2013 | 25 Mar 2013 | 001-13357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Aug 2012 | 13 Aug 2012 | 001-13357 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2012 | 31 Jan 2012 | 000-17520 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2012 | 13 Jan 2012 | 000-28457 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2012 | 19 Jan 2012 | 001-13357 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2012 | 08 Nov 2011 | 000-17520 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2012 | 26 Oct 2011 | 000-28457 |