| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 27 May 2022 | 26 May 2022 | 000-55088 | |
| 4 | Open Document | Open Filing | 10 Dec 2021 | 08 Dec 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | 07 Dec 2021 | 06 Dec 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | 20 Oct 2021 | 18 Oct 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | 18 Oct 2021 | 14 Oct 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | 06 Oct 2021 | 30 Jun 2021 | 000-55088 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jun 2021 | 09 Jun 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2021 | 09 Jun 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jun 2021 | 07 Jun 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2021 | 31 Mar 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jan 2021 | 07 Jan 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2021 | 05 Jan 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2020 | 30 Nov 2020 | 000-55088 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2020 | 05 Jun 2020 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2020 | 05 Jun 2020 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2020 | 08 Nov 2019 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2019 | 11 Jan 2019 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Oct 2018 | 29 Dec 2017 | 000-55088 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2018 | 30 Sep 2017 | 000-55088 |
| 4 | Open Document | Open Filing | 30 Sep 2015 | 29 Sep 2015 | 000-54405 | |
| 4 | Open Document | Open Filing | 19 May 2015 | 18 May 2015 | 000-54405 | |
| 4 | Open Document | Open Filing | FORM 4 | 21 Apr 2015 | 20 Apr 2015 | 001-34647 |
| 4 | Open Document | Open Filing | 02 Jan 2015 | 30 Dec 2014 | 001-34647 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Dec 2014 | 25 Nov 2014 | 000-54405 |
| 4 | Open Document | Open Filing | 26 Nov 2014 | 24 Nov 2014 | 001-34647 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Jun 2014 | 27 May 2014 | 000-54405 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 12 May 2014 | ||
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 May 2014 | 30 Apr 2014 | 000-55203 |