| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2024 | Jun 13, 2024 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2023 | Jun 8, 2023 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2022 | Jun 9, 2022 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2021 | Jun 15, 2021 | 001-08097 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 10, 2021 | Apr 30, 2021 | 001-08097 |
| 3 | Open Document | Open Filing | FORM 3 - | Sep 18, 2018 | Sep 17, 2018 | 001-35719 |
| 4 | Open Document | Open Filing | 4 | Feb 2, 2018 | Jan 31, 2018 | 001-38019 |
| 4/A | Open Document | Open Filing | 4/A | Jan 9, 2018 | Jan 1, 2018 | 001-38019 |
| 4 | Open Document | Open Filing | 4 | Jan 3, 2018 | Jan 1, 2018 | 001-38019 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 10, 2017 | Jan 6, 2017 | 333-145639 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 9, 2017 | Dec 30, 2016 | 333-145639 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2016 | Dec 31, 2015 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 4, 2015 | Nov 2, 2015 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 4, 2015 | Aug 3, 2015 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 24, 2015 | Jun 23, 2015 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2015 | Feb 23, 2015 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 5, 2015 | Mar 3, 2015 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 13, 2014 | Aug 11, 2014 | 001-08097 |
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 7, 2014 | Feb 26, 2014 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2014 | Feb 28, 2014 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2014 | Feb 26, 2014 | 001-08097 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2014 | Feb 25, 2014 | 001-08097 |