| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2023 | May 17, 2023 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 24, 2023 | Jun 17, 2022 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 23, 2022 | May 19, 2022 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2021 | May 20, 2021 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 22, 2020 | May 20, 2020 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 20, 2019 | May 16, 2019 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2018 | May 17, 2018 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 22, 2017 | May 18, 2017 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 23, 2016 | May 19, 2016 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 26, 2015 | May 21, 2015 | 001-11778 |
| 4 | Open Document | Open Filing | Jul 1, 2014 | Jun 30, 2014 | 000-51653 | |
| 4 | Open Document | Open Filing | May 19, 2014 | May 15, 2014 | 001-11778 | |
| 4 | Open Document | Open Filing | Apr 4, 2014 | Mar 31, 2014 | 000-51653 | |
| 4 | Open Document | Open Filing | Jan 3, 2014 | Dec 31, 2013 | 000-51653 |