| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 4 TO SCHEDULE 13D | 31 May 2023 | ||
| 4 | Open Document | Open Filing | 31 May 2023 | 13 Jan 2020 | 001-31810 | |
| 4 | Open Document | Open Filing | 26 Aug 2021 | 23 Mar 2021 | 001-31810 | |
| 4 | Open Document | Open Filing | 13 Jan 2021 | 24 Dec 2020 | 001-31810 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 May 2020 | 15 Apr 2020 | 001-31810 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Nov 2019 | 09 Jul 2019 | 001-31810 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 May 2019 | 15 May 2019 | 001-38120 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Dec 2018 | 12 Dec 2018 | 001-31810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Jan 2018 | 29 Jan 2018 | 001-31810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jan 2018 | 29 Dec 2017 | 001-31810 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 09 Nov 2017 | 01 Nov 2017 | 001-31810 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Jun 2017 | 28 Jun 2017 | 001-38120 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Jun 2017 | 19 Jun 2017 | 001-38120 |