| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 19, 2023 | May 17, 2023 | 001-36285 | |
| 4 | Open Document | Open Filing | May 19, 2022 | May 17, 2022 | 001-36285 | |
| 4 | Open Document | Open Filing | May 20, 2021 | May 18, 2021 | 001-36285 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2020 | Jun 30, 2020 | 000-14625 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 24, 2020 | Jun 19, 2020 | 000-14625 |
| 4 | Open Document | Open Filing | May 21, 2020 | May 19, 2020 | 001-36285 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2019 | Jun 21, 2019 | 000-14625 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 24, 2019 | Jun 21, 2019 | 000-14625 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 7, 2019 | Jun 5, 2019 | 000-14625 |
| 4 | Open Document | Open Filing | May 22, 2019 | May 20, 2019 | 001-36285 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2018 | Jun 6, 2018 | 000-14625 |
| 4 | Open Document | Open Filing | May 24, 2018 | May 22, 2018 | 001-36285 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2017 | Jun 7, 2017 | 000-14625 |
| 4 | Open Document | Open Filing | May 24, 2017 | May 23, 2017 | 001-36285 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2017 | Jan 13, 2017 | 000-14625 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2016 | Jun 1, 2016 | 000-14625 |
| 4 | Open Document | Open Filing | May 25, 2016 | May 24, 2016 | 001-36285 | |
| 4 | Open Document | Open Filing | FORM 4 | May 3, 2016 | May 2, 2016 | 001-13144 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 19, 2015 | Jun 17, 2015 | 001-13144 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2015 | Jun 3, 2015 | 000-14625 |
| 4 | Open Document | Open Filing | May 19, 2015 | May 15, 2015 | 001-36285 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 10, 2014 | Dec 8, 2014 | 000-14625 |
| 3 | Open Document | Open Filing | Jun 30, 2014 | Jun 27, 2014 | 001-36285 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2014 | Jun 4, 2014 | 000-14625 |
| 4 | Open Document | Open Filing | May 20, 2014 | May 16, 2014 | 001-06780 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 15, 2014 | Apr 11, 2014 | 000-14625 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2014 | Mar 19, 2014 | 000-14625 |