| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 14 Dec 2021 | 13 Dec 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 15 Nov 2021 | 12 Nov 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 12 Oct 2021 | 12 Oct 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 14 Sep 2021 | 13 Sep 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 13 Aug 2021 | 12 Aug 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 13 Jul 2021 | 12 Jul 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 15 Jun 2021 | 14 Jun 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 14 May 2021 | 12 May 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 13 Apr 2021 | 12 Apr 2021 | 001-34780 | |
| 4 | Open Document | Open Filing | 16 Dec 2020 | 14 Dec 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 18 Nov 2020 | 16 Nov 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 13 Oct 2020 | 13 Oct 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 16 Sep 2020 | 14 Sep 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 17 Aug 2020 | 13 Aug 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 15 Jul 2020 | 13 Jul 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 17 Jun 2020 | 15 Jun 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 15 May 2020 | 13 May 2020 | 001-34780 | |
| 4 | Open Document | Open Filing | 14 Apr 2020 | 13 Apr 2020 | 001-34780 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2018 | 13 Feb 2018 | 001-34780 |