| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2021 | 10 May 2021 | 001-33383 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Aug 2020 | 21 Aug 2020 | 001-33383 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Mar 2020 | 27 Mar 2020 | 001-33383 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2017 | 01 Mar 2017 | 001-33383 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2016 | 08 Mar 2016 | 001-33383 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2015 | 11 Feb 2015 | 001-33383 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2015 | 11 Feb 2015 | 001-33383 |