| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Dec 2021 | 15 Dec 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Sep 2021 | 10 Sep 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Aug 2021 | 17 Aug 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Jun 2021 | 15 Jun 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 May 2021 | 05 May 2021 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 16 Feb 2021 | 11 Feb 2021 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 12 Nov 2020 | 10 Nov 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 09 Jun 2020 | 05 Jun 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 03 Mar 2020 | 02 Mar 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 27 Feb 2020 | 25 Feb 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 13 Feb 2020 | 11 Feb 2020 | 001-35172 |
| 3 | Open Document | Open Filing | 3 | 03 Feb 2020 | 23 Jan 2020 | 001-35172 |