| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2022 | Apr 11, 2022 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2022 | Mar 1, 2022 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2022 | Feb 18, 2022 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 18, 2022 | Feb 16, 2022 | 001-07945 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 5, 2022 | Dec 31, 2021 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 12, 2021 | Apr 9, 2021 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2021 | Mar 1, 2021 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2021 | Feb 18, 2021 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2021 | Jan 28, 2021 | 001-07945 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 4, 2021 | Dec 31, 2020 | 001-07945 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2020 | Apr 11, 2020 | 001-07945 |
| 4 | Open Document | Open Filing | 4 | Feb 20, 2020 | Feb 18, 2020 | 001-07945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 15, 2019 | Apr 11, 2019 | 001-07945 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 15, 2019 | Apr 11, 2019 | 001-07945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 22, 2016 | Aug 18, 2016 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 2, 2016 | Jul 29, 2016 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 28, 2016 | Jul 26, 2016 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 1, 2016 | May 30, 2016 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 19, 2015 | Aug 17, 2015 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 3, 2015 | Jul 30, 2015 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 28, 2015 | Jul 26, 2015 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2015 | May 30, 2015 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2015 | Feb 10, 2015 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 20, 2014 | Aug 18, 2014 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 14, 2014 | Aug 13, 2014 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 31, 2014 | Jul 29, 2014 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 28, 2014 | Jul 26, 2014 | 001-16111 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2014 | May 30, 2014 | 001-16111 |