| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 21 Dec 2022 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A (AMENDMENT NO. 6) | 01 Apr 2022 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Mar 2022 | 29 Mar 2022 | 000-53166 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 22 Feb 2022 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 08 Nov 2019 | ||
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 08 Nov 2019 | 27 Sep 2019 | 000-53166 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 08 Nov 2019 | 27 Sep 2019 | 000-53166 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 07 Oct 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Oct 2019 | 30 Sep 2019 | 000-53166 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Oct 2019 | 27 Sep 2019 | 000-53166 |
| D | Open Document | Open Filing | 06 Aug 2019 | 021-345849 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 05 Aug 2019 | ||
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | 24 Aug 2018 | ||
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 02 Jul 2018 | 22 Jun 2018 | 000-53166 |
| SC 13D | Open Document | Open Filing | SC 13D | 29 Jun 2018 | ||
| D | Open Document | Open Filing | 24 Apr 2018 | 021-310833 |