| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 1, 2022 | May 27, 2022 | 001-37351 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2021 | May 28, 2021 | 001-37351 |
| 4 | Open Document | Open Filing | FORM 4 | May 27, 2020 | May 22, 2020 | 001-37351 |
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2019 | May 23, 2019 | 001-37351 |
| 4 | Open Document | Open Filing | FORM 4 | May 29, 2018 | May 24, 2018 | 001-37351 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2017 | May 31, 2017 | 001-37351 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2016 | Jun 3, 2016 | 001-37351 |
| 4 | Open Document | Open Filing | 4 | Apr 30, 2015 | Apr 28, 2015 | 001-37351 |
| 3 | Open Document | Open Filing | 3 | Apr 22, 2015 | Apr 22, 2015 | 001-37351 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Feb 13, 2014 | Dec 31, 2013 | 001-08923 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 10, 2014 | Feb 6, 2014 | 001-08923 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 4, 2014 | Jan 31, 2014 | 001-08923 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 17, 2014 | Jan 15, 2014 | 001-08923 |