Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
---|---|---|---|---|---|---|
4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2021 | May 7, 2021 | 000-16509 |
4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 19, 2021 | Apr 15, 2021 | 000-16509 |
4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 2, 2021 | Jan 29, 2021 | 000-16509 |
4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 17, 2020 | Apr 15, 2020 | 000-16509 |
4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 4, 2020 | Jan 31, 2020 | 000-16509 |
4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 4, 2019 | Jan 31, 2019 | 000-16509 |
3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 22, 2018 | Feb 12, 2018 | 000-16509 |