| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 04 Mar 2022 | 02 Mar 2022 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Nov 2021 | 22 Nov 2021 | 000-21121 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Mar 2021 | 04 Mar 2021 | 000-21121 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2020 | 30 Apr 2020 | 000-21121 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2020 | 27 Feb 2020 | 000-21121 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2019 | 27 Feb 2019 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2018 | 01 Mar 2018 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Nov 2017 | 06 Nov 2017 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2017 | 10 Aug 2017 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2017 | 22 May 2017 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Feb 2016 | 25 Feb 2016 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Dec 2015 | 30 Nov 2015 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Nov 2015 | 25 Nov 2015 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2015 | 17 Nov 2015 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2015 | 26 Feb 2015 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2014 | 27 Feb 2014 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Nov 2013 | 21 Nov 2013 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2013 | 15 Nov 2013 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2013 | 01 Mar 2013 | 000-21121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2012 | 05 Mar 2012 | 000-21121 |