| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2023 | May 30, 2023 | 000-33501 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 15, 2022 | Jun 13, 2022 | 000-33501 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 12, 2021 | Nov 9, 2021 | 000-33501 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2020 | Jun 3, 2020 | 000-33501 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 14, 2019 | Aug 14, 2019 | 000-33501 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 5, 2019 | Feb 4, 2019 | 000-33501 |
| 3/A | Open Document | Open Filing | FORM 3/A | Jan 7, 2019 | Dec 10, 2018 | 000-33501 |
| 3 | Open Document | Open Filing | FORM 3 | Dec 10, 2018 | Nov 29, 2018 | 000-33501 |