| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 29, 2022 | Jun 28, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2021 | May 20, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 25, 2020 | Aug 24, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 26, 2020 | May 21, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 11, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2020 | Feb 26, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2019 | May 23, 2019 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 25, 2018 | May 24, 2018 | 000-19364 |
| 3 | Open Document | Open Filing | FORM 3 | May 25, 2018 | May 24, 2018 | 000-19364 |
| 4 | Open Document | Open Filing | Jan 15, 2014 | Jan 13, 2014 | 001-06049 | |
| 4 | Open Document | Open Filing | Jan 10, 2014 | Jan 8, 2014 | 001-06049 |