| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 6, 2022 | Jul 1, 2022 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 5, 2022 | Jun 30, 2022 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 4, 2022 | Mar 31, 2022 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 2, 2021 | Dec 1, 2021 | 000-20572 |
| 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 27, 2021 | Apr 24, 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 | Jan 4, 2021 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 3, 2020 | Dec 1, 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 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | May 7, 2020 | Apr 25, 2020 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 3, 2020 | Dec 31, 2019 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 2, 2019 | Dec 1, 2019 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 2, 2019 | Sep 30, 2019 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 2, 2019 | Jun 28, 2019 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 2, 2019 | Mar 29, 2019 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 4, 2019 | Jan 2, 2019 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 4, 2018 | Dec 3, 2018 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 3, 2018 | Jul 1, 2018 | 000-20572 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 5, 2017 | Dec 1, 2017 | 000-20572 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Nov 27, 2017 | Nov 20, 2017 | 000-20572 |