| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2021 | Oct 22, 2021 | 001-13792 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2021 | Feb 21, 2021 | 001-13792 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 12, 2020 | Feb 10, 2020 | 001-13792 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 15, 2019 | Feb 1, 2019 | 001-13792 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 22, 2019 | Dec 31, 2018 | 001-13792 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 22, 2019 | Jan 17, 2019 | 001-13792 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 7, 2018 | Aug 3, 2018 | 001-13792 |
| 5 | Open Document | Open Filing | FORM 5 | Feb 13, 2018 | Dec 30, 2017 | 001-13792 |
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 7, 2016 | Feb 1, 2016 | 001-13792 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 10, 2016 | Feb 1, 2016 | 001-13792 |
| 4 | Open Document | Open Filing | FORM 4 | May 7, 2015 | May 2, 2015 | 001-13792 |
| 5 | Open Document | Open Filing | FORM 5 | Apr 1, 2015 | Dec 27, 2014 | 001-13792 |