| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 18 Mar 2022 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 27 Jan 2022 | ||
| SC 13D/A | Open Document | Open Filing | 21 Jun 2021 | |||
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2021 | 17 May 2021 | 000-49877 |
| SC 13D/A | Open Document | Open Filing | 08 Jun 2021 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 May 2021 | 17 May 2021 | 000-49877 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13/D AMENDMENT #8 | 13 Apr 2021 | ||
| SC 13D/A | Open Document | Open Filing | AMENDMENT #8 | 09 Apr 2021 | ||
| SC 13D/A | Open Document | Open Filing | AMENDMENT #7 | 17 Mar 2021 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2021 | 02 Mar 2021 | 000-49877 |
| SC 13D/A | Open Document | Open Filing | 13D AMENDMENT #6 | 16 Dec 2020 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13-D/A | 21 Jul 2020 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jul 2020 | 17 Jul 2020 | 000-49877 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jul 2020 | 16 Apr 2020 | 000-49877 |
| SC 13D/A | Open Document | Open Filing | 08 May 2020 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Apr 2020 | 16 Apr 2020 | 000-49877 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 3 TO SCHEDULE 13D | 30 Dec 2019 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Dec 2019 | 23 Dec 2019 | 000-49877 |
| SC 13D/A | Open Document | Open Filing | 23 Sep 2019 | |||
| SC 13D/A | Open Document | Open Filing | 20 Sep 2019 | |||
| SC 13D/A | Open Document | Open Filing | 19 Sep 2019 | |||
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jul 2019 | 05 Jul 2019 | 000-49877 |
| SC 13D | Open Document | Open Filing | 09 Jul 2019 | |||
| SC 13G | Open Document | Open Filing | 25 Jan 2018 | |||
| SC 13G/A | Open Document | Open Filing | 23 Jan 2017 | |||
| SC 13G/A | Open Document | Open Filing | 12 Feb 2016 | |||
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 16 Jan 2015 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Jun 2014 | 26 May 2014 | 000-49877 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jan 2014 | 01 Jan 2014 | 000-49877 |