| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 20, 2023 | Apr 18, 2023 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 9, 2022 | May 5, 2022 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2022 | Feb 15, 2022 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 18, 2021 | Feb 16, 2021 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2020 | Feb 18, 2020 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 21, 2019 | Feb 19, 2019 | 000-23423 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Feb 27, 2018 | Jan 16, 2018 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 18, 2018 | Jan 16, 2018 | 000-23423 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Mar 13, 2017 | Aug 1, 2016 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 19, 2017 | Jan 17, 2017 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 2, 2016 | Aug 1, 2016 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 21, 2016 | Jan 19, 2016 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 22, 2015 | Jan 20, 2015 | 000-23423 |
| 4 | Open Document | Open Filing | FORM 5 | Jan 23, 2014 | Jan 21, 2014 | 000-23423 |