| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2022 | Mar 1, 2022 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 3, 2022 | Feb 1, 2022 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 5, 2022 | Jan 3, 2022 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 3, 2021 | Dec 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 3, 2021 | Nov 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 5, 2021 | Oct 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 3, 2021 | Sep 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 4, 2021 | Aug 2, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 6, 2021 | Jul 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2021 | Jun 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 5, 2021 | May 3, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 6, 2021 | Apr 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 4, 2021 | Mar 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 3, 2021 | Feb 1, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 6, 2021 | Jan 4, 2021 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 3, 2020 | Dec 1, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 4, 2020 | Nov 2, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 5, 2020 | Oct 1, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 3, 2020 | Sep 1, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 5, 2020 | Aug 3, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 6, 2020 | Jul 1, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2020 | Jun 11, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 1, 2020 | May 28, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 12, 2020 | May 11, 2020 | 000-54835 |
| 4 | Open Document | Open Filing | Feb 28, 2020 | Feb 26, 2020 | 000-54835 | |
| 4 | Open Document | Open Filing | May 13, 2019 | May 9, 2019 | 000-54835 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 8, 2019 | May 6, 2019 | 000-54835 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 10, 2019 | Apr 1, 2019 | 000-54835 |