| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Oct 2022 | 11 May 2022 | 001-16503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2022 | 11 May 2022 | 001-16503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2021 | 11 May 2021 | 001-16503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2020 | 10 Jun 2020 | 001-16503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2020 | 20 May 2020 | 001-16503 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jan 2020 | 15 Jan 2020 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Aug 2019 | 13 Aug 2019 | 001-16503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2019 | 20 May 2019 | 001-16503 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jan 2019 | 15 Jan 2019 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Aug 2018 | 13 Aug 2018 | 001-16503 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jan 2018 | 16 Jan 2018 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2017 | 14 Aug 2017 | 001-16503 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Jan 2017 | 17 Jan 2017 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2016 | 15 Aug 2016 | 001-16503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2016 | 10 May 2016 | 001-16503 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2016 | 03 May 2016 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2016 | 27 Jan 2016 | 001-16503 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Jan 2016 | 15 Jan 2016 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2016 | 04 Jan 2016 | 001-16503 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2016 | 04 Jan 2016 | 001-16503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2016 | 04 Jan 2016 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Dec 2015 | 30 Dec 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Dec 2015 | 15 Dec 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Oct 2015 | 15 Oct 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Oct 2015 | 01 Oct 2015 | 001-34594 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Aug 2015 | 10 Aug 2015 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jul 2015 | 15 Jul 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2015 | 01 Jul 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2015 | 01 Jul 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2015 | 15 Apr 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2015 | 01 Apr 2015 | 001-34594 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Jan 2015 | 15 Jan 2015 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jan 2015 | 15 Jan 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2015 | 01 Jan 2015 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2014 | 15 Oct 2014 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jul 2014 | 15 Jul 2014 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2014 | 01 Jul 2014 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2014 | 15 Apr 2014 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2014 | 01 Apr 2014 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jan 2014 | 15 Jan 2014 | 001-34594 |
| 4 | Open Document | Open Filing | DIRECTOR'S COMP | 17 Jan 2014 | 15 Jan 2014 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2014 | 01 Jan 2014 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2013 | 01 Oct 2013 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2013 | 15 Jul 2013 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2013 | 01 Jul 2013 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Apr 2013 | 15 Apr 2013 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2013 | 01 Apr 2013 | 001-34594 |
| 4 | Open Document | Open Filing | DIRECTOR'S COMP | 16 Jan 2013 | 15 Jan 2013 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2013 | 03 Jan 2013 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2012 | 15 Oct 2012 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2012 | 01 Oct 2012 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2012 | 16 Jul 2012 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2012 | 01 Jul 2012 | 001-34594 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Apr 2012 | 16 Apr 2012 | 001-34594 |
| 4 | Open Document | Open Filing | SALE OF STOCK | 27 Feb 2012 | 24 Feb 2012 | 001-31721 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jan 2012 | 15 Jan 2012 | 001-34594 |
| 4 | Open Document | Open Filing | DIRECTOR'S COMP | 18 Jan 2012 | 17 Jan 2012 | 001-31721 |