| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2025 | 12 Jun 2025 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2024 | 06 Dec 2024 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jun 2024 | 18 Jun 2024 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2023 | 08 Jun 2023 | 000-18183 |
| 4 | Open Document | Open Filing | 30 Sep 2022 | 15 Jun 2022 | 001-38296 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2022 | 09 Jun 2022 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jun 2021 | 10 Jun 2021 | 000-18183 |
| 4 | Open Document | Open Filing | FORM 4 - | 10 Jun 2021 | 08 Jun 2021 | 001-38296 |
| 4 | Open Document | Open Filing | FORM 4 - | 21 Apr 2021 | 31 Mar 2021 | 001-38296 |
| 4 | Open Document | Open Filing | FORM 4 - | 15 Mar 2021 | 11 Mar 2021 | 001-38296 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Mar 2021 | 20 Nov 2020 | 001-38296 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jun 2020 | 11 Jun 2020 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jun 2020 | 03 Jun 2020 | 000-18183 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 May 2020 | 13 May 2020 | 000-06966 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 Mar 2020 | 06 Mar 2020 | 000-06966 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Mar 2020 | 04 Mar 2020 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2020 | 30 Aug 2019 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jun 2019 | 13 Jun 2019 | 000-18183 |
| 4 | Open Document | Open Filing | FORM 4 - | 31 May 2019 | 29 May 2019 | 000-06966 |
| 4 | Open Document | Open Filing | FORM 4 - | 08 Mar 2019 | 06 Mar 2019 | 000-06966 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Mar 2019 | 02 Mar 2019 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jan 2019 | 10 Jan 2019 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jun 2018 | 14 Jun 2018 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2018 | 30 May 2018 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2018 | 03 Apr 2018 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Mar 2018 | 08 Mar 2018 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2018 | 02 Mar 2018 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2018 | 26 Feb 2018 | 000-06966 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Nov 2017 | 16 Nov 2017 | 001-38296 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2017 | 08 Aug 2017 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jun 2017 | 15 Jun 2017 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2017 | 31 May 2017 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Apr 2017 | 10 Apr 2017 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2017 | 02 Mar 2017 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2017 | 26 Feb 2017 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2016 | 16 Jun 2016 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2016 | 05 May 2016 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2016 | 26 Feb 2016 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Oct 2015 | 06 Oct 2015 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2015 | 30 Jun 2015 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2015 | 13 May 2015 | 000-06966 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2015 | 27 Feb 2015 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2015 | 27 Feb 2015 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2015 | 09 Jan 2015 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2014 | 14 Jul 2014 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2014 | 10 Jun 2014 | 000-18183 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2014 | 05 Jun 2013 | 000-18183 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Mar 2014 | 24 Mar 2014 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Mar 2014 | 24 Mar 2014 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2014 | 05 Mar 2014 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2014 | 27 Feb 2014 | 000-06966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Feb 2014 | 04 Feb 2014 | 001-34044 |
| 4 | Open Document | Open Filing | FORM 4 - | 16 Jan 2014 | 14 Jan 2014 | 001-34044 |
| 3 | Open Document | Open Filing | FORM 3 - | 16 Jan 2014 | 18 Dec 2013 | 001-34044 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2014 | 30 Dec 2013 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2013 | 06 Dec 2013 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Nov 2013 | 13 Nov 2013 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Oct 2013 | 07 Oct 2013 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2013 | 15 Jul 2013 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jun 2013 | 05 Jun 2013 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2013 | 15 Apr 2013 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Mar 2013 | 25 Mar 2013 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2013 | 01 Mar 2013 | 000-06966 |
| 4 | Open Document | Open Filing | R WHITE | 14 Feb 2013 | 12 Feb 2013 | 000-24993 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2013 | 02 Jan 2013 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Dec 2012 | 12 Dec 2012 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Oct 2012 | 05 Oct 2012 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2012 | 13 Jul 2012 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jun 2012 | 06 Jun 2012 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Apr 2012 | 16 Apr 2012 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Mar 2012 | 23 Mar 2012 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2012 | 02 Mar 2012 | 000-06966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Jan 2012 | 28 Jan 2012 | 000-24993 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jan 2012 | 03 Oct 2011 | 000-06966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2012 | 03 Jan 2012 | 000-06966 |