| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 6, 2021 | Jul 1, 2021 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 2, 2021 | Jun 30, 2021 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 1, 2021 | Mar 31, 2021 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 5, 2021 | Dec 31, 2020 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 2, 2020 | Sep 30, 2020 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 16, 2020 | Jul 14, 2020 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 6, 2020 | Jul 1, 2020 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 1, 2020 | Jun 30, 2020 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 2, 2020 | Mar 31, 2020 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 2, 2019 | Jul 1, 2019 | 000-20572 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 5, 2019 | Feb 4, 2019 | 000-20572 |