Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
---|---|---|---|---|---|---|
SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 5 | Mar 17, 2022 | ||
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2022 | Feb 8, 2021 | 000-53944 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2020 | May 1, 2020 | 000-53944 |
SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 4 | Sep 10, 2020 | ||
SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 3 | Aug 27, 2018 | ||
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2018 | Apr 12, 2018 | 000-53944 |
SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 2 | Mar 16, 2017 | ||
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2017 | Jan 5, 2017 | 000-53944 |
SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 | Mar 5, 2015 | ||
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2015 | Mar 2, 2015 | 000-53944 |