| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2021 | May 7, 2021 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 12, 2020 | May 8, 2020 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 6, 2019 | May 3, 2019 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 13, 2018 | Dec 12, 2018 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 11, 2018 | Dec 4, 2018 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 7, 2018 | May 4, 2018 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 8, 2017 | May 5, 2017 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 18, 2016 | Aug 16, 2016 | 001-31410 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 6, 2016 | May 6, 2016 | 001-31410 |
| 4 | Open Document | Open Filing | ANNUAL DIRECTOR PAYMENT | May 11, 2015 | May 8, 2015 | 001-31410 |
| 4 | Open Document | Open Filing | OPEN MARKET SALE | Sep 5, 2014 | Sep 4, 2014 | 001-31410 |
| 4 | Open Document | Open Filing | ANNUAL DIRECTOR PAYMENT | May 9, 2014 | May 8, 2014 | 001-31410 |