| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 05 Jul 2023 | 26 Jun 2023 | 001-38154 | |
| 4 | Open Document | Open Filing | 13 Apr 2020 | 08 Apr 2020 | 001-38154 | |
| 4 | Open Document | Open Filing | 25 Mar 2020 | 23 Mar 2020 | 001-38154 | |
| 4 | Open Document | Open Filing | 06 Feb 2018 | 05 Feb 2018 | 001-38154 | |
| 3 | Open Document | Open Filing | 18 Jul 2017 | 11 Jul 2017 | 000-52815 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2015 | 04 Jun 2015 | 001-33691 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2014 | 29 May 2014 | 001-33691 |
| 4 | Open Document | Open Filing | FORM 4 | 31 May 2013 | 30 May 2013 | 001-33691 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Aug 2012 | 27 Aug 2012 | 001-33691 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Aug 2012 | 24 Aug 2012 | 001-33691 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2012 | 01 Mar 2012 | 001-33691 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2012 | 03 Jan 2012 | 001-33691 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | 001-33691 |