| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Feb 2022 | 01 Feb 2022 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2021 | 01 Feb 2021 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2021 | 01 Feb 2021 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Mar 2020 | 18 Mar 2020 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2020 | 03 Feb 2020 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Feb 2019 | 01 Feb 2019 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Feb 2018 | 01 Feb 2018 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Feb 2017 | 01 Feb 2017 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Sep 2016 | 09 Sep 2016 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Sep 2016 | 06 Sep 2016 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Feb 2016 | 01 Feb 2016 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Dec 2015 | 11 Dec 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Aug 2015 | 13 Aug 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jun 2015 | 16 Jun 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Jun 2015 | 11 Jun 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2015 | 04 Jun 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Mar 2015 | 10 Mar 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Mar 2015 | 02 Mar 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Feb 2015 | 02 Feb 2015 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2014 | 01 Aug 2014 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jan 2014 | 02 Jan 2014 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jan 2013 | 02 Jan 2013 | 000-51759 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 May 2012 | 22 May 2012 | 000-51759 |