| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 08 Sep 2021 | 04 Sep 2021 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2021 | 01 Mar 2021 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2021 | 30 Dec 2020 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Sep 2020 | 04 Sep 2020 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2020 | 02 Mar 2020 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2020 | 30 Dec 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2019 | 04 Sep 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2019 | 01 Mar 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2018 | 04 Sep 2018 | 001-16751 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Aug 2018 | 20 Aug 2018 | 001-16751 |