| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2022 | Jun 8, 2022 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 4, 2021 | Jun 2, 2021 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 20, 2021 | May 18, 2021 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 24, 2020 | Jun 23, 2020 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 20, 2020 | Mar 19, 2020 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 17, 2020 | Mar 13, 2020 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 28, 2019 | Jun 26, 2019 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 23, 2019 | May 22, 2019 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 22, 2019 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2018 | May 23, 2018 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2018 | May 16, 2018 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 19, 2018 | Mar 15, 2018 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 26, 2017 | May 24, 2017 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 15, 2016 | Aug 12, 2016 | 001-33530 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 9, 2016 | Jun 8, 2016 | 001-33530 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 26, 2016 | Apr 25, 2016 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2016 | Jan 25, 2016 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2015 | Dec 7, 2015 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 27, 2015 | Oct 26, 2015 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 27, 2015 | Jul 27, 2015 | 000-14412 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 1, 2015 | Jul 1, 2015 | 001-33530 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 30, 2015 | Jun 29, 2015 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2015 | Jun 5, 2015 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2015 | Apr 27, 2015 | 000-14412 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 21, 2015 | Apr 17, 2015 | 001-33530 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2015 | Jan 26, 2015 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 21, 2014 | Nov 20, 2014 | 000-14412 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Oct 29, 2014 | Oct 27, 2014 | 001-33530 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2014 | Oct 27, 2014 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 12, 2014 | Aug 11, 2014 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 30, 2014 | Jul 28, 2014 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2014 | Apr 28, 2014 | 000-14412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2014 | Jan 27, 2014 | 000-14412 |