| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 23 Nov 2022 | 22 Nov 2022 | 000-50796 | |
| 4 | Open Document | Open Filing | 11 Aug 2022 | 09 Aug 2022 | 000-50796 | |
| 4 | Open Document | Open Filing | 04 Mar 2022 | 02 Mar 2022 | 000-50796 | |
| 4 | Open Document | Open Filing | 05 Mar 2021 | 03 Mar 2021 | 000-50796 | |
| 4 | Open Document | Open Filing | 11 Feb 2021 | 09 Feb 2021 | 000-50796 | |
| 4 | Open Document | Open Filing | 08 Feb 2021 | 04 Feb 2021 | 000-50796 | |
| 4 | Open Document | Open Filing | 07 Jan 2021 | 05 Jan 2021 | 000-50796 | |
| 4 | Open Document | Open Filing | 28 Dec 2020 | 23 Dec 2020 | 000-50796 | |
| 4 | Open Document | Open Filing | 07 Jul 2020 | 06 Jul 2020 | 000-50796 | |
| 4/A | Open Document | Open Filing | 07 Jul 2020 | 07 Feb 2020 | 000-50796 | |
| 4 | Open Document | Open Filing | 11 Feb 2020 | 07 Feb 2020 | 000-50796 | |
| 4 | Open Document | Open Filing | 26 Nov 2019 | 22 Nov 2019 | 000-50796 | |
| 4 | Open Document | Open Filing | 03 Jul 2019 | 02 Jul 2019 | 000-50796 | |
| 4 | Open Document | Open Filing | 05 Mar 2019 | 01 Mar 2019 | 000-50796 | |
| 4 | Open Document | Open Filing | 27 Feb 2019 | 25 Feb 2019 | 000-50796 | |
| 4 | Open Document | Open Filing | 14 Feb 2019 | 21 May 2018 | 000-50796 | |
| 4/A | Open Document | Open Filing | 14 Feb 2019 | 22 Oct 2018 | 000-50796 | |
| 4 | Open Document | Open Filing | 24 Oct 2018 | 22 Oct 2018 | 000-50796 | |
| 4 | Open Document | Open Filing | 10 Jul 2018 | 06 Jul 2018 | 000-50796 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Mar 2017 | 23 Feb 2017 | 000-50796 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Nov 2015 | 09 Nov 2015 | 000-50796 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Nov 2014 | 10 Nov 2014 | 000-50796 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 31 Dec 2013 | 27 Dec 2013 | 000-50796 |
| 4 | Open Document | Open Filing | 4 | 21 Nov 2013 | 21 Nov 2013 | 000-50796 |
| 4 | Open Document | Open Filing | 4 | 09 Oct 2012 | 04 Oct 2012 | 000-50796 |