| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 18 Oct 2023 | 16 Oct 2023 | 001-36581 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2021 | 08 Feb 2021 | 000-53944 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2021 | 15 Jan 2021 | 000-53944 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Dec 2020 | 27 Oct 2020 | 000-53944 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Aug 2020 | 18 Aug 2020 | 000-53944 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2018 | 12 Apr 2018 | 000-53944 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2017 | 21 Dec 2016 | 000-31927 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2016 | 18 May 2016 | 000-53944 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2016 | 01 Sep 2015 | 000-53944 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 18 Nov 2015 | 01 Dec 2012 | 000-31927 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Aug 2015 | 31 Jul 2015 | 000-53944 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jul 2015 | 16 Jul 2015 | 000-53944 |