| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 22 Nov 2021 | 18 Nov 2021 | 001-34487 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Mar 2021 | 31 Mar 2021 | 001-34487 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Dec 2019 | 02 Dec 2019 | 001-34487 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Aug 2018 | 08 Aug 2018 | 001-34487 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Aug 2018 | 08 Aug 2018 | 001-34487 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2017 | 26 Oct 2017 | 001-34487 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Nov 2015 | 20 Nov 2015 | 001-34487 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Sep 2015 | 12 Aug 2015 | 001-34487 |
| 4 | Open Document | Open Filing | FORM 4 - | 10 Apr 2015 | 08 Apr 2015 | 001-34487 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Jun 2014 | 05 May 2014 | 001-34487 |