| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 11 Jun 2021 | 09 Jun 2021 | 000-27687 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 08 Jun 2021 | 04 Jun 2021 | 000-27687 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jul 2020 | 17 Jul 2020 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2019 | 11 Jun 2019 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Aug 2018 | 16 Aug 2018 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2018 | 12 Jun 2018 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Aug 2017 | 22 Aug 2017 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Jun 2017 | 13 Jun 2017 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jul 2016 | 30 Jun 2016 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Jun 2016 | 14 Jun 2016 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Jun 2016 | 07 Jun 2016 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Feb 2016 | 17 Feb 2016 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jun 2015 | 16 Jun 2015 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Feb 2015 | 25 Feb 2015 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Jul 2014 | 24 Jun 2014 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 May 2014 | 20 May 2014 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Aug 2013 | 19 Aug 2013 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jul 2013 | 28 Jun 2013 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Nov 2012 | 13 Nov 2012 | 000-27687 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 15 Nov 2012 | 13 Nov 2012 | 000-27687 |