| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | 07 May 2021 | 05 May 2021 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 - | 11 May 2020 | 07 May 2020 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Dec 2019 | 05 Dec 2019 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 - | 02 Aug 2019 | 31 Jul 2019 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 May 2019 | 01 May 2019 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 - | 07 May 2018 | 03 May 2018 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 Jun 2017 | 09 Jun 2017 | 001-13610 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 11 Apr 2017 | ||
| SC 13G | Open Document | Open Filing | SC 13G | 21 Dec 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 - | 06 May 2016 | 04 May 2016 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 - | 07 Apr 2015 | 03 Apr 2015 | 001-13610 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Mar 2014 | 11 Mar 2014 | 001-13610 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 11 Mar 2014 | 11 Mar 2014 | 001-13610 |