| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 22 Feb 2024 | 20 Feb 2024 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Feb 2024 | 01 Feb 2024 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2023 | 22 Feb 2023 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Feb 2023 | 01 Feb 2023 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2022 | 01 Aug 2022 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Feb 2022 | 15 Feb 2022 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Feb 2022 | 01 Feb 2022 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Aug 2021 | 02 Aug 2021 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Feb 2021 | 16 Feb 2021 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Feb 2021 | 01 Feb 2021 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Aug 2020 | 03 Aug 2020 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Feb 2020 | 11 Feb 2020 | 001-11277 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2019 | 01 Aug 2019 | 001-11277 |
| 3 | Open Document | Open Filing | FORM 3 | 31 Jul 2019 | 25 Jul 2019 | 001-11277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2018 | 03 Oct 2018 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2018 | 03 Oct 2018 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2018 | 27 Apr 2018 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2018 | 27 Apr 2018 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2018 | 12 Feb 2018 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2018 | 08 Feb 2018 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2018 | 05 Feb 2018 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2018 | 22 Jan 2018 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2017 | 08 Jun 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2017 | 08 Jun 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2017 | 08 Jun 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2017 | 09 May 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2017 | 08 May 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2017 | 04 May 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2017 | 27 Apr 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2017 | 10 Feb 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2017 | 02 Feb 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jan 2017 | 23 Jan 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2016 | 25 May 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2016 | 25 May 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2016 | 25 May 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2016 | 24 May 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2016 | 18 Feb 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2016 | 12 Feb 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2016 | 10 Feb 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Feb 2016 | 05 Feb 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jan 2016 | 25 Jan 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2015 | 06 May 2015 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2015 | 06 May 2015 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2015 | 18 Feb 2015 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2015 | 12 Feb 2015 | 000-04887 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2015 | 11 Feb 2015 | 000-04887 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2015 | 11 Feb 2015 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2015 | 10 Feb 2015 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jan 2015 | 26 Jan 2015 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2014 | 20 Nov 2013 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2014 | 18 Feb 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2014 | 12 Feb 2014 | 000-04887 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2014 | 10 Feb 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2014 | 10 Feb 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2014 | 17 Jan 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2013 | 19 Nov 2013 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2013 | 29 Jul 2013 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2013 | 05 Mar 2013 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2013 | 18 Feb 2013 | 000-04887 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2013 | 12 Feb 2013 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2013 | 12 Feb 2013 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2013 | 22 Jan 2013 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jun 2012 | 01 Jun 2012 | 000-04887 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2012 | 27 Apr 2012 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2012 | 27 Apr 2012 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2012 | 05 Mar 2012 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2012 | 23 Feb 2012 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2012 | 10 Feb 2012 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jan 2012 | 23 Jan 2012 | 000-04887 |