| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 29 Jun 2021 | 25 Jun 2021 | 001-39469 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Mar 2021 | 08 Mar 2021 | 001-40156 |
| 3 | Open Document | Open Filing | 03 Mar 2021 | 03 Mar 2021 | 001-40156 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Mar 2021 | 25 Feb 2021 | 001-40096 |
| 3 | Open Document | Open Filing | 22 Feb 2021 | 22 Feb 2021 | 001-40096 | |
| 4 | Open Document | Open Filing | 09 Feb 2021 | 09 Feb 2021 | 000-51018 | |
| 4 | Open Document | Open Filing | 31 Aug 2020 | 28 Aug 2020 | 001-39469 | |
| 3 | Open Document | Open Filing | 25 Aug 2020 | 25 Aug 2020 | 001-39469 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2020 | 20 May 2020 | 000-51018 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2019 | 11 Feb 2019 | 000-51018 |
| 3 | Open Document | Open Filing | 15 Nov 2018 | 15 Nov 2018 | 001-38744 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2018 | 16 May 2018 | 000-51018 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2017 | 03 Feb 2017 | 000-51018 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Feb 2016 | 29 Jan 2016 | 000-51018 |
| 4 | Open Document | Open Filing | TUAN FORM 4 1-2014 | 30 Jan 2014 | 29 Jan 2014 | 000-51018 |
| 3 | Open Document | Open Filing | FORM 3 8/27/2013 | 27 Aug 2013 | 24 Jul 2013 | 000-51018 |