| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 09 Aug 2021 | 05 Aug 2021 | 001-13490 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Jul 2019 | 23 Jul 2019 | 001-13490 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Jul 2018 | 12 Jul 2018 | 001-13490 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Feb 2017 | 15 Feb 2017 | 001-13490 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Jan 2016 | 12 Jan 2016 | 000-25142 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 May 2015 | 27 May 2015 | 000-25142 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Jun 2014 | 27 Jun 2014 | 000-25142 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2014 | 05 Jun 2014 | 000-25142 |