| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 3, 2021 | Jun 1, 2021 | 001-32898 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13G | Feb 16, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2020 | Jun 3, 2020 | 001-32898 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13G | Feb 12, 2020 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 13, 2019 | Sep 4, 2019 | 001-32898 |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | May 29, 2019 | ||
| 3 | Open Document | Open Filing | May 29, 2019 | May 22, 2019 | 001-32898 |