| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2022 | 31 Jan 2022 | 000-26584 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Nov 2021 | 29 Oct 2021 | 000-26584 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2021 | 03 May 2021 | 000-26584 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2020 | 04 May 2020 | 000-26584 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 May 2019 | 16 May 2019 | 001-14793 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2019 | 30 Apr 2019 | 000-26584 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Apr 2019 | 24 Apr 2019 | 001-14793 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Nov 2018 | 30 Oct 2018 | 001-14793 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Oct 2018 | 29 Sep 2018 | 001-14793 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Sep 2018 | 19 Sep 2018 | 001-14793 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2018 | 27 Apr 2018 | 000-26584 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Apr 2018 | 24 Apr 2018 | 001-14793 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Oct 2017 | 29 Sep 2017 | 001-14793 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 May 2017 | 28 Apr 2017 | 000-26584 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Apr 2017 | 24 Apr 2017 | 001-14793 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Dec 2016 | 06 Dec 2016 | 000-26584 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Oct 2016 | 29 Sep 2016 | 001-14793 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Sep 2016 | 24 Sep 2016 | 001-14793 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2016 | 29 Apr 2016 | 000-26584 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Apr 2016 | 25 Apr 2016 | 001-14793 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2016 | 01 Mar 2016 | 000-26584 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Sep 2015 | 24 Apr 2015 | 001-14793 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Sep 2014 | 28 Aug 2014 | 001-14793 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Apr 2014 | 24 Apr 2014 | 001-14793 |