| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 14 Mar 2022 | 10 Mar 2022 | 000-09115 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Mar 2021 | 11 Mar 2021 | 000-09115 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Mar 2020 | 12 Mar 2020 | 000-09115 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Mar 2019 | 14 Mar 2019 | 000-09115 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Mar 2018 | 08 Mar 2018 | 000-09115 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2017 | 09 Mar 2017 | 000-09115 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2016 | 10 Mar 2016 | 000-09115 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Oct 2015 | 28 Sep 2015 | 000-09115 |