| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 10 Jun 2022 | 09 Jun 2022 | 001-33076 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Aug 2018 | 05 Jan 2018 | 000-24939 |
| 5 | Open Document | Open Filing | FORM 5 | 12 Jan 2018 | 31 Dec 2017 | 000-24939 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Aug 2017 | 14 Aug 2017 | 000-24939 |
| 5 | Open Document | Open Filing | FORM 5 | 04 Jan 2017 | 31 Dec 2016 | 000-24939 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Aug 2016 | 01 Aug 2016 | 000-24939 |
| 5 | Open Document | Open Filing | FORM 5 | 23 Jun 2016 | 31 Dec 2015 | 000-24939 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Sep 2015 | 14 Sep 2015 | 001-34755 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Aug 2015 | 06 Aug 2015 | 000-24939 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Jul 2015 | 07 Jul 2015 | 001-34755 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jul 2015 | 02 Jul 2015 | 001-34755 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Jan 2015 | 27 Jan 2015 | 001-34755 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jan 2015 | 20 Jan 2015 | 001-34755 |
| 4 | Open Document | Open Filing | FORM 4 - | 06 Aug 2014 | 05 Aug 2014 | 000-24939 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Mar 2014 | 31 Mar 2014 | 001-34755 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 30 Jan 2014 | 28 Jan 2014 | 001-34755 |
| 4 | Open Document | Open Filing | FORM 4 - | 24 Jul 2013 | 23 Jul 2013 | 000-24939 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 27 Feb 2013 | 20 Feb 2013 | 001-34755 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Jan 2013 | 29 Jan 2013 | 001-34755 |
| 4 | Open Document | Open Filing | FORM 4 - | 26 Jul 2012 | 24 Jul 2012 | 000-24939 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jul 2012 | 05 Jul 2012 | 001-34755 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Jul 2012 | 03 Jul 2012 | 000-24939 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Jan 2012 | 24 Jan 2012 | 001-34755 |