| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Dec 8, 2021 | Oct 29, 2021 | 001-10986 | |
| 4 | Open Document | Open Filing | Jul 2, 2021 | Jun 30, 2021 | 001-10986 | |
| 4 | Open Document | Open Filing | Jul 2, 2020 | Jun 30, 2020 | 001-10986 | |
| 4 | Open Document | Open Filing | May 20, 2020 | May 14, 2020 | 001-10986 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 26, 2019 | Nov 22, 2019 | 001-10986 |
| 4 | Open Document | Open Filing | 4 | Aug 27, 2018 | Aug 27, 2018 | 001-10986 |
| 4 | Open Document | Open Filing | 4 | Aug 2, 2018 | Aug 1, 2018 | 001-10986 |
| 4 | Open Document | Open Filing | 4 | Jul 26, 2018 | Jul 24, 2018 | 001-10986 |
| 4 | Open Document | Open Filing | 4 | Jul 25, 2018 | Jul 23, 2018 | 001-10986 |
| 4 | Open Document | Open Filing | 4 | Nov 3, 2017 | Nov 2, 2017 | 001-10986 |
| 4 | Open Document | Open Filing | 4 | Dec 8, 2016 | Dec 6, 2016 | 001-10986 |
| 4/A | Open Document | Open Filing | 4/A | Nov 23, 2016 | Sep 9, 2014 | 001-10986 |
| 4/A | Open Document | Open Filing | 4/A | Nov 18, 2016 | Sep 9, 2014 | 001-10986 |
| 4 | Open Document | Open Filing | 4 | Nov 7, 2016 | Nov 3, 2016 | 001-10986 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 20, 2015 | Aug 18, 2015 | 001-10986 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 18, 2015 | May 14, 2015 | 001-10986 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 11, 2014 | Sep 9, 2014 | 001-10986 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 16, 2014 | Jun 13, 2014 | 001-10986 |