| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Aug 4, 2021 | Jul 29, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 3, 2021 | Aug 2, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 30, 2021 | Jul 29, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 23, 2021 | Jun 21, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 14, 2021 | Jun 11, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 31, 2021 | Feb 25, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2021 | Mar 12, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 4, 2021 | Mar 2, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2021 | Feb 22, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 12, 2020 | Nov 10, 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 10, 2020 | Nov 6, 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 5, 2020 | Nov 3, 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 15, 2020 | Jun 11, 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2020 | Mar 12, 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 27, 2020 | Feb 25, 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 25, 2020 | Feb 22, 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 6, 2019 | Dec 4, 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2019 | Jun 11, 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 10, 2019 | Apr 3, 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 27, 2019 | Feb 25, 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 22, 2019 | Feb 22, 2019 | 000-21810 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Nov 16, 2018 | Nov 16, 2018 | 000-21810 |